# Statewide opinion polling for the 2016 Republican Party presidential primaries

2016 U.S. presidential election :
Timeline
General election debates
Parties
Polling
national
statewide
by demographics
international
Newspaper endorsements
primary
general
Russian interference
Russia investigation origins counter-narrative
Media coverage
Social media
International reactions
Electors
Recounts
Faithless electors
Vote count :
Republican Party :
Primaries
Candidates
Debates and forums
Polling
national
statewide
straw polls
Endorsements
Results
Nominee
VP candidate selection
Convention :
Democratic Party :
Primaries
Candidates
Debates and forums
Polling
national
statewide
straw polls
Endorsements
Results
Nominee
VP candidate selection
Convention
superdelegates :
Third parties :
Third-party and independent candidates
Libertarian Party
primaries
debates
nominee
convention
Green Party
primaries
debates
nominee
convention
Constitution Party
primaries
nominee
Reform Party
primaries
nominee
American Solidarity Party
Maturen
Independents
McMullin :
Related races :
House
Senate
Governors :
| ← 2012 | 2016 | 2020 → |
vte :
This article contains opinion polling by U.S. state for the 2016 Republican Party presidential primaries. The shading for each poll indicates the candidate(s) which are within one margin of error of the poll's leader.
For the significance of the earliest state votes, the Iowa caucuses and the New Hampshire primary, see United States presidential primary – Iowa and New Hampshire. For when any given state votes, see Republican Party presidential primaries, 2016 – Schedule of primaries and caucuses.

## Alabama

Winner: Donald Trump Primary date: March 1, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Primary results | March 1, 2016 | Donald Trump 43.42% | Ted Cruz 21.09% | Marco Rubio 18.66% | Ben Carson 10.24%, John Kasich 4.43%, Jeb Bush 0.46%, Mike Huckabee 0.30%, Rand Paul 0.22%, Chris Christie 0.10%, Rick Santorum 0.07%, Carly Fiorina 0.06%, Lindsey Graham 0.03% |
| SurveyMonkey Margin of error: ± ?% Sample size: 741 | February 22–29, 2016 | Donald Trump 47% | Ted Cruz 18% | Marco Rubio 14% | Ben Carson 9%, John Kasich 3%, Undecided 9% |
| Monmouth University Margin of error: ± 4.6% Sample size: 450 | February 25–28, 2016 | Donald Trump 42% | Marco Rubio 19% | Ted Cruz 16% | Ben Carson 11%, John Kasich 5%, Undecided 7% |
| Opinion Savvy Margin of error: ± 4.6% Sample size: 460 | February 25–26, 2016 | Donald Trump 35.8% | Marco Rubio 23.0% | Ted Cruz 16.2% | Ben Carson 10.5%, John Kasich 7.5%, Undecided 7.0% |
| AL.com Margin of error: ± 4.5% Sample size: 500 | December 10–13, 2015 | Donald Trump 35% | Ted Cruz 15% | Marco Rubio 12% | Ben Carson 12%, Jeb Bush 4%, Mike Huckabee 4%, Chris Christie 3%, John Kasich 2%, Carly Fiorina 1%, Rand Paul <1%, Rick Santorum <1%, Lindsey Graham <1% |
| Gravis Marketing Margin of error: ± 2% Sample size: 1616 | September 3, 2015 | Donald Trump 38% | Ben Carson 16.7% | Jeb Bush 4.9% | Ted Cruz 4.1%, Mike Huckabee 2.7%, Marco Rubio 2.3%, Carly Fiorina 2.3%, Rand Paul 1.5%, John Kasich 1.3%, Scott Walker 1.1%, Chris Christie 0.9%, Rick Santorum 0.4%, Rick Perry 0.3%, Bobby Jindal 0.3%, Lindsey Graham 0.1%, unsure 23.2% |
| News-5/Strategy Research Margin of error: ± 2% Sample size: 3500 | August 11, 2015 | Donald Trump 30% | Jeb Bush 15% | Ben Carson 11% | Marco Rubio 11%, Mike Huckabee 8%, Carly Fiorina 8%, Ted Cruz 7.5%, Scott Walker 3%, Other 5% |
| Opinion Savvy/Insider Advantage Margin of error: ± 4.4% Sample size: 481 | August 2–3, 2015 | Donald Trump 37.6% | Ben Carson 14.6% | Jeb Bush 11.8% | Mike Huckabee 7.9%, Ted Cruz 4.5%, Scott Walker 3.8%, Chris Christie 3.2%, Marco Rubio 2.6%, Rand Paul 2.2%, Bobby Jindal 2.0%, John Kasich 1.4%, Rick Santorum 1.2%, Rick Perry 1.0%, Lindsey Graham 0.7%, Carly Fiorina 0.5%, George Pataki 0.0%, Someone else 1.9%, Undecided 3.1% |
| Cygnal Margin of error: ± 3.42% Sample size: 821 | July 7–8, 2014 | Jeb Bush 19.8% | Ben Carson 12.6% | Rand Paul 10.5% | Chris Christie 8.8%, Rick Perry 7.2%, Ted Cruz 5.6%, Rick Santorum 5.3%, Bobby Jindal 3.9%, Scott Walker 3.6%, Undecided 22.6% |

## Alaska

Winner: Ted Cruz Primary date: March 1, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Caucus results | March 1, 2016 | Ted Cruz 36.37% | Donald Trump 33.64% | Marco Rubio 15.16% | Ben Carson 10.83%, John Kasich 3.99%, Other 0.01% |
| Alaska Dispatch News/Ivan Moore Research Margin of error: – Sample size: 651 | January 23, 2016 | Donald Trump 27.9% | Ted Cruz 23.8% | Ben Carson 8.5% | Jeb Bush 7.3%, Marco Rubio 6.9%, Chris Christie 3.3%, Rand Paul 3.0%, John Kasich 1.7%, Other 4.1%, Undecided 13.4% |
| Public Policy Polling Margin of error: ± 5.3% Sample size: 337 | July 31 – August 3, 2014 | Ted Cruz 16% | Rand Paul 15% | Mike Huckabee 14% | Chris Christie 12%, Jeb Bush 12%, Sarah Palin 11%, Scott Walker 7%, Paul Ryan 6%, Marco Rubio 5%, Someone else/Not sure 4% |
| Public Policy Polling Margin of error: ± 5.5% Sample size: 313 | May 8–11, 2014 | Ted Cruz 15% | Jeb Bush 14% | Chris Christie 14% | Sarah Palin 12%, Rand Paul 11%, Mike Huckabee 11%, Paul Ryan 4%, Scott Walker 4%, Marco Rubio 3%, Someone else/Not sure 11% |
| Public Policy Polling Margin of error: ± 5.5% Sample size: 313 | May 8–11, 2014 | Chris Christie 16% | Jeb Bush 15% | Ted Cruz 15% | Rand Paul 14%, Mike Huckabee 10%, Paul Ryan 5%, Scott Walker 5%, Marco Rubio 4%, Someone else/Not sure 16% |
| Magellan Strategies Margin of error: ± 7% Sample size: 190 | April 14, 2014 | Ted Cruz 16% | Rand Paul 15% | Jeb Bush 13% | Mike Huckabee 12%, Chris Christie 11%, Marco Rubio 7%, Scott Walker 6%, John Kasich 1%, Undecided 19% |
| Public Policy Polling Margin of error: ± 4.7% Sample size: 442 | January 30 – February 1, 2014 | Rand Paul 15% | Ted Cruz 13% | Sarah Palin 13% | Jeb Bush 12%, Mike Huckabee 11%, Chris Christie 10%, Marco Rubio 6%, Paul Ryan 4%, Scott Walker 4%, Someone Else/Undecided 12% |
| Public Policy Polling Margin of error: ± 4.7% Sample size: 442 | January 30 – February 1, 2014 | Ted Cruz 16% | Jeb Bush 14% | Rand Paul 14% | Mike Huckabee 13%, Chris Christie 9%, Marco Rubio 8%, Paul Ryan 7%, Scott Walker 5%, Someone Else/Undecided 15% |
| Public Policy Polling Margin of error: ± 4.4% Sample size: 507 | July 25–28, 2013 | Rand Paul 18% | Sarah Palin 14% | Chris Christie 13% | Jeb Bush 11%, Marco Rubio 9%, Paul Ryan 9%, Ted Cruz 8%, Rick Santorum 5%, George Zimmerman 2%, Someone Else/Undecided 12% |
| Public Policy Polling Margin of error: ± 4.4% Sample size: 507 | July 25–28, 2013 | Rand Paul 20% | Jeb Bush 15% | Chris Christie 14% | Paul Ryan 14%, Marco Rubio 10%, Ted Cruz 9%, Rick Santorum 6%, Someone Else/Undecided 12% |
| Public Policy Polling Margin of error: ± 4.2% Sample size: 537 | Feb. 4–5, 2013 | Marco Rubio 18% | Mike Huckabee 14% | Rand Paul 12% | Chris Christie 11%, Paul Ryan 10%, Jeb Bush 9%, Sarah Palin 9%, Bobby Jindal 6%, Rick Perry 1%, Someone Else/Undecided 10% |

## Arizona

Winner: Donald Trump Primary date: March 22, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Primary results | March 22, 2016 | Donald Trump 45.95% | Ted Cruz 27.61% | John Kasich 11.59% | Ben Carson 2.39%, Jeb Bush 0.70%, Rand Paul 0.36%, Mike Huckabee 0.21%, Carly Fiorina 0.20%, Chris Christie 0.16%, Rick Santorum 0.08%, Lindsey Graham 0.08%, George Pataki 0.05% |
| Opinion Savvy/Fox 10 Margin of error: ± 4% Sample size: 607 | March 20, 2016 | Donald Trump 45.8% | Ted Cruz 33.3% | John Kasich 17.1% | Unsure/Undecided 3.8% |
| Merrill/Westgroup Research Margin of error: ± 5.4% Sample size: 300 | March 7–11, 2016 | Donald Trump 31% | Ted Cruz 19% | John Kasich 10% | Marco Rubio 10%, Unsure/Undecided 30% |
| MBQF Consulting Margin of error: ± 3.57% Sample size: 751 | March 8, 2016 | Donald Trump 37.3% | Ted Cruz 23.3% | John Kasich 14.6% | Marco Rubio 11.6%, Unsure/Undecided 10.4%, Other 2.8% |
| MBQF Consulting Margin of error: ± 3.61% Sample size: 736 | February 22, 2016 | Donald Trump 34.8% | Marco Rubio 22.7% | Ted Cruz 14.1% | Ben Carson 7.1%, Unsure/Undecided 21.3% |
| MBQF Consulting Margin of error: ± 3.53% Sample size: 771 | January 19, 2016 | Donald Trump 38.6% | Ted Cruz 15.6% | Marco Rubio 11.4% | Ben Carson 7.1%, Jeb Bush 7.0%, Chris Christie 3.1%, Carly Fiorina 2.9%, John Kasich 2.9%, Mike Huckabee 1.4%, Rand Paul 0.4%, Unsure/undecided 10% |
| Behavior Research Center Margin of error: ± 6.7% Sample size: 226 | October 24 – November 4, 2015 | Ben Carson 23% | Donald Trump 21% | Marco Rubio 15% | Jeb Bush 8%, Ted Cruz 5%, All others (Christie, Fiorina, Huckabee, Paul, Kasich) 6%, Not sure yet 22% |
| Silver Bullet LLC Margin of error: ± 3.77% Sample size: 677 | August 3, 2015 | Donald Trump 33% | Jeb Bush 17% | Scott Walker 13% | Ben Carson 10%, Ted Cruz 5%, John Kasich 5%, Marco Rubio 4%, Mike Huckabee 2%, Chris Christie 1%, Carly Fiorina 1%, Rand Paul 1%, Rick Perry 0%, Lindsey Graham 0%, Bobby Jindal 0%, George Pataki 0%, Jim Gilmore 0%, Undecided/Refused 7% |
| MBQF Consulting Margin of error: ± 3.56 Sample size: 758 | July 29, 2015 | Donald Trump 26.5% | Scott Walker 12.6% | Jeb Bush 12.1% | Ben Carson 8.7%, Ted Cruz 6%, Mike Huckabee 3.9%, Marco Rubio 3.9%, Rick Perry 2%, Rand Paul 1.7%, Chris Christie 1.7%, Undecided 21% |
| Public Policy Polling Margin of error: ± 5.7% Sample size: 300 | May 1–3, 2015 | Scott Walker 16% | Jeb Bush 14% | Marco Rubio 14% | Ben Carson 11%, Rand Paul 11%, Ted Cruz 9%, Chris Christie 5%, Mike Huckabee 5%, Rick Perry 2%, Undecided 12% |
| Public Policy Polling Margin of error: ± 4.9% Sample size: 403 | February 28 – March 2, 2014 | Ted Cruz 16% | Rand Paul 14% | Chris Christie 12% | Jeb Bush 11%, Mike Huckabee 11%, Paul Ryan 8%, Scott Walker 8%, Marco Rubio 4%, Bobby Jindal 2%, Other/Undecided 13% |

## Arkansas

Winner: Donald Trump Primary date: March 1, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Primary results | March 1, 2016 | Donald Trump 32.79% | Ted Cruz 30.50% | Marco Rubio 24.80% | Ben Carson 5.72%, John Kasich 3.72%, Mike Huckabee 1.17%, Jeb Bush 0.58%, Rand Paul 0.28%, Chris Christie 0.15%, Carly Fiorina 0.10%, Rick Santorum 0.07%, Lindsey Graham 0.06%, Bobby Jindal 0.04% |
| SurveyMonkey Margin of error: ± ?% Sample size: 542 | February 22–29, 2016 | Donald Trump 34% | Ted Cruz 27% | Marco Rubio 20% | Ben Carson 8%, John Kasich 4%, Undecided 6% |
| Talk Business/Hendrix Margin of error: ± ?% Sample size: 457 | February 4, 2016 | Ted Cruz 27% | Marco Rubio 23% | Donald Trump 23% | Ben Carson 11%, Carly Fiorina 4%, John Kasich 4%, Jeb Bush 1%, Chris Christie 1%, Don't Know 6% |
| Opinion Savvy/Insider Advantage Margin of error: ± 4.7% Sample size: 428 | August 2, 2015 | Donald Trump 25.5% | Mike Huckabee 21.4% | Jeb Bush 9.2% | Ted Cruz 8.7%, Ben Carson 8.2%, Scott Walker 4.2%, Rand Paul 3.8%, John Kasich 3.1%, Marco Rubio 2.9%, Chris Christie 2.4%, Rick Perry 1.5%, Carly Fiorina 1.3%, Bobby Jindal 1.3%, Lindsey Graham 0.7%, Rick Santorum 0.3%, George Pataki 0%, Someone else 2.2%, Undecided 3.2% |
| Suffolk University Margin of error: ± 7.5% Sample size: 171 | September 20–23, 2014 | Mike Huckabee 39.27% | Rick Perry 8.38% | Ted Cruz 7.33% | Rand Paul 6.28%, Jeb Bush 4.71%, Chris Christie 4.71%, Marco Rubio 4.71%, Paul Ryan 3.14%, Bobby Jindal 2.62%, Rick Santorum 2.09%, Jon Huntsman Jr. 1.57%, Scott Walker 1.57%, John Kasich 1.05%, Other 2.09%, Undecided 10.47% |
| Suffolk University Margin of error: ± 7.5% Sample size: 171 | September 20–23, 2014 | Mitt Romney 32.75% | Mike Huckabee 29.24% | Ted Cruz 6.43% | Rick Perry 6.43%, Chris Christie 2.92%, Rand Paul 2.92%, Paul Ryan 2.34%, Jon Huntsman Jr. 1.75%, Marco Rubio 1.75%, Jeb Bush 1.17%, Rick Santorum 0.58%, Scott Walker 0.58%, Bobby Jindal 0%, John Kasich 0% Undecided 11.11% |
| Public Policy Polling Margin of error: ± 4.5% Sample size: 479 | August 1–3, 2014 | Mike Huckabee 33% | Ted Cruz 12% | Jeb Bush 10% | Chris Christie 8%, Rand Paul 7%, Scott Walker 6%, Bobby Jindal 5%, Marco Rubio 4%, Paul Ryan 3%, Someone else/Not sure 11% |
| Public Policy Polling Margin of error: ± 5.4% Sample size: 342 | April 25–27, 2014 | Mike Huckabee 38% | Ted Cruz 14% | Rand Paul 13% | Jeb Bush 10%, Chris Christie 4%, Bobby Jindal 3%, Marco Rubio 3%, Paul Ryan 3%, Cliven Bundy 2%, Someone else/Not sure 10% |
| Magellan Strategies Margin of error: ± 3.35% Sample size: 857 | April 14–15, 2014 | Mike Huckabee 57% | Rand Paul 9% | Jeb Bush 8% | Chris Christie 6%, Ted Cruz 6%, Marco Rubio 5%, John Kasich 2%, Scott Walker 1%, Undecided 7% |

## California

Winner: Donald Trump Primary date: June 7, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Primary results | June 7, 2016 | Donald Trump 75.01% | John Kasich 11.41% | Ted Cruz 9.30% | Ben Carson 3.55%, Jim Gilmore 0.72% |
| Hoover/Golden State Poll Margin of error: ± % Sample size: 380 | May 4–16, 2016 | Donald Trump 66% | Ted Cruz 11% | John Kasich 7% | |
| SurveyUSA/KABC/SCNG Margin of error: ± 4.3% Sample size: 529 | April 27–30, 2016 | Donald Trump 54% | Ted Cruz 20% | John Kasich 16% | |
| Fox News Margin of error: ± 4.0% Sample size: 583 | April 18–21, 2016 | Donald Trump 49% | Ted Cruz 22% | John Kasich 20% | Undecided 7%, None 1% |
| CBS News/YouGov Margin of error: ± 4.8% Sample size: 1012 | April 13–15, 2016 | Donald Trump 49% | Ted Cruz 31% | John Kasich 16% | Undecided 4% |
| Sextant Strategies & Research/Capitol Weekly Margin of error: ± % Sample size: 1165 | April 11–14, 2016 | Donald Trump 41% | Ted Cruz 23% | John Kasich 21% | Undecided 15% |
| Field Margin of error: ± 4.0% Sample size: 558 | March 24–April 4, 2016 | Donald Trump 39% | Ted Cruz 32% | John Kasich 18% | Other/Undecided 11% |
| SurveyUSA Margin of error: ± 5.3% Sample size: 356 | March 30–April 3, 2016 | Donald Trump 40% | Ted Cruz 32% | John Kasich 17% | Undecided 12% |
| USC/Los Angeles Times Margin of error: ± 5.5% Sample size: 391 | March 16–23, 2016 | Donald Trump 36% | Ted Cruz 35% | John Kasich 14% | |
| Public Policy Institute of California Margin of error: ± 7.3% Sample size: 321 | March 6–15, 2016 | Donald Trump 38% | Ted Cruz 27% | John Kasich 14% | Other 11%, Don't Know 9% |
| Nson Margin of error: ± 4.9% Sample size: 407 | March 9–10, 2016 | Donald Trump 38% | Ted Cruz 22% | John Kasich 20% | Marco Rubio 10%, Other/Undecided 10% |
| Smith Johnson Research Margin of error: ± 4% Sample size: 454 | March 7–9, 2016 | Donald Trump 24.9% | Ted Cruz 19.6% | Marco Rubio 17.6% | John Kasich 15.4%, Undecided 22.5% |
| Field Margin of error: ± 5.6% Sample size: 325 | December 16, 2015– January 3, 2016 | Ted Cruz 25% | Donald Trump 23% | Marco Rubio 13% | Ben Carson 9%, Rand Paul 6%, Jeb Bush 4%, Carly Fiorina 3%, Chris Christie 3%, John Kasich 1%, Other/Undecided 13% |
| USC/LA Times/SurveyMonkey Margin of error: ± 3.0% Sample size: 674 | October 29 – November 3, 2015 | Donald Trump 20% | Ben Carson 19% | Marco Rubio 14% | Ted Cruz 11%, Carly Fiorina 6%, Jeb Bush 4%, Rand Paul 3%, Chris Christie 2%, Mike Huckabee 1%, Lindsey Graham 1%, John Kasich 1%, Rick Santorum 1%, George Pataki 0%, Bobby Jindal 0%, Undecided 14% |
| Field Poll Margin of error: ± 7.0% Sample size: 214 | September 17 – October 4, 2015 | Donald Trump 17% | Ben Carson 15% | Carly Fiorina 13% | Marco Rubio 10%, Jeb Bush 8%, Ted Cruz 6%, Rand Paul 5%, Mike Huckabee 3%, Chris Christie 2%, John Kasich 2%, Rick Santorum 1%, George Pataki 1%, Lindsey Graham 1%, Bobby Jindal 0%, Others 3%, undecided 13% |
| LA Times/USC Margin of error: ± 5.3% Sample size: 422 | Aug 29 – Sep 8, 2015 | Donald Trump 24% | Ben Carson 18% | Ted Cruz 6% | Jeb Bush 6%, Marco Rubio 5%, Carly Fiorina 5%, Mike Huckabee 2%, Scott Walker 2%, John Kasich 2%, Rand Paul 2%, Chris Christie 1%, Rick Santorum 1%, Rick Perry 1%, Others 3%, undecided 20% |
| Field Poll Margin of error: ± 7.0% Sample size: 227 | April 23 – May 16, 2015 | Jeb Bush 11% | Marco Rubio 11% | Scott Walker 10% | Rand Paul 8%, Mike Huckabee 6%, Chris Christie 6%, Ben Carson 5%, Ted Cruz 4%, Carly Fiorina 3%, Bobby Jindal 1%, John Kasich 1%, Lindsey Graham 1%, Rick Perry 0%, Other 2%, Undecided 31% |
| Emerson College Margin of error: ± ? Sample size: 358 | April 2–8, 2015 | Jeb Bush 17% | Scott Walker 17% | Ben Carson 15% | Ted Cruz 11%, Rand Paul 8%, Mike Huckabee 6%, Chris Christie 5%, Undecided 20% |
| Field Poll Margin of error: ± 5.4% Sample size: 237 | January 26 – February 16, 2015 | Scott Walker 18% | Jeb Bush 16% | Rand Paul 10% | Ben Carson 8%, Marco Rubio 7%, Ted Cruz 5%, Mike Huckabee 5%, Rick Perry 4%, Chris Christie 3%, Lindsey Graham 1%, Bobby Jindal 1%, Other 3%, Undecided 19% |

## Colorado

Winner: Ted Cruz Primary date: June 7, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Quinnipiac University Margin of error: ± 4.5% Sample size: 474 | November 11–15, 2015 | Ben Carson 25% | Marco Rubio 19% | Donald Trump 17% | Ted Cruz 14%, Carly Fiorina 5%, Rand Paul 3%, Jeb Bush 2%, Chris Christie 1%, John Kasich 1%, Mike Huckabee 1%, Bobby Jindal 1%, Lindsey Graham 0%, Rick Santorum 0%, George Pataki 0%, Jim Gilmore 0%, DK/NA 11% |
| Suffolk University Margin of error: ± ?% Sample size: 205 | September 2014 | Rand Paul 12.25% | Paul Ryan 10.29% | Chris Christie/Mike Huckabee 8.33% | Scott Walker 7.84%, Marco Rubio 7.35%, Jeb Bush 6.37%, Bobby Jindal 5.88%, Ted Cruz 5.39%, Rick Perry 5.39%, Rick Santorum 2.45%, John Huntsman 1.47%, John Kasich 0.49%, Refused 0.49%, Other 1.96% |
| Magellan Strategies Margin of error: ± 6% Sample size: 270 | April 14–15, 2014 | Rand Paul 17% | Mike Huckabee 16% | Ted Cruz 14% | Chris Christie 12%, Marco Rubio 10%, Jeb Bush 9%, Scott Walker 8%, John Kasich 2%, Undecided 12% |
| Public Policy Polling Margin of error: ± 6.1% Sample size: 255 | March 13–16, 2014 | Ted Cruz 17% | Mike Huckabee 15% | Chris Christie 14% | Rand Paul 10%, Paul Ryan 10%, Jeb Bush 8%, Marco Rubio 8%, Scott Walker 5%, Bobby Jindal 2%, Other/Undecided 11% |
| Public Policy Polling Margin of error: ± 5.2% Sample size: 355 | December 3–4, 2013 | Ted Cruz 18% | Chris Christie 17% | Rand Paul 16% | Marco Rubio 10%, Paul Ryan 9%, Jeb Bush 8%, Scott Walker 6%, Bobby Jindal 3%, Rick Santorum 2%, Other/Undecided 11% |

## Connecticut

Winner: Donald Trump Primary date: April 26, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Primary results | April 26, 2016 | Donald Trump 57.87% | John Kasich 28.36% | Ted Cruz 11.71% | Ben Carson 0.81% |
| Gravis Marketing Margin of error: ± 3.0% Sample size: 964 | April 23–24, 2016 | Donald Trump 54% | John Kasich 27% | Ted Cruz 9% | Undecided 10% |
| Public Policy Polling Margin of error: ± 4.3% Sample size: 512 | April 22–24, 2016 | Donald Trump 59% | John Kasich 25% | Ted Cruz 13% | Undecided 3% |
| Quinnipiac University Margin of error: ± 3.4% Sample size: 823 | April 12–18, 2016 | Donald Trump 48% | John Kasich 28% | Ted Cruz 19% | Undecided 5% |
| Emerson College Margin of error: ± 5.2% Sample size: 354 | April 10 – 11, 2016 | Donald Trump 50% | John Kasich 26% | Ted Cruz 17% | Undecided 6%, Other 2% |
| Emerson College Margin of error: ± 4.6% Sample size: 445 | November 13–16, 2015 | Donald Trump 24.7% | Marco Rubio 14.3% | John Kasich 10.4% | Jeb Bush 10.1%, Ben Carson 9.1%, Rand Paul 6.2%, Ted Cruz 6.1%, Carly Fiorina 3.6%, Chris Christie 2.4%, Mike Huckabee 0.4%, George Pataki 0.2%, Lindsey Graham 0.2%, Other 1.6%, Undecided 10.9% |
| Quinnipiac University Margin of error: ± 4.6% Sample size: 464 | October 7–11, 2015 | Donald Trump 34% | Ben Carson 14% | Carly Fiorina 11% | Marco Rubio 7%, Jeb Bush 6%, Ted Cruz 6%, Chris Christie 4%, John Kasich 4%, George Pataki 1%, Rand Paul 1%, Jim Gilmore 0%, Lindsey Graham 0%, Mike Huckabee 0%, Bobby Jindal 0%, Rick Santorum 0%, Someone else 1%, Wouldn't vote 1%, DK/NA 9% |
| Quinnipiac University Margin of error: ± 4.6% Sample size: 459 | March 6–9, 2015 | Jeb Bush 18% | Scott Walker 18% | Rand Paul 12% | Chris Christie 11%, Ben Carson 7%, Ted Cruz 5%, Marco Rubio 4%, Mike Huckabee 3%, Bobby Jindal 2%, Rick Perry 2%, Lindsey Graham 0%, John Kasich 0%, Rick Santorum 0%, Other 3%, Wouldn't vote 3%, Undecided 12% |

## Delaware

Winner: Donald Trump Primary date: April 26, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Primary results | April 26, 2016 | Donald Trump 60.77% | John Kasich 20.35% | Ted Cruz 15.90% | Marco Rubio 0.89%, Jeb Bush 0.83% |
| Gravis Marketing Margin of error: ± 3.0% Sample size: 1,038 | April 17–18, 2016 | Donald Trump 55% | John Kasich 18% | Ted Cruz 15% | Unsure 12% |

## District of Columbia

Winner: Marco Rubio Primary date: March 12, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Convention results | March 12, 2016 | Marco Rubio 37.30% | John Kasich 35.54% | Donald Trump 13.77% | Ted Cruz 12.36%, Jeb Bush 0.49, Rand Paul 0.42%, Ben Carson 0.11% |

## Florida

Winner: Donald Trump Primary date: March 15, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Primary results | March 15, 2016 | Donald Trump 45.72% | Marco Rubio 27.04% | Ted Cruz 17.14% | John Kasich 6.77%, Jeb Bush 1.84%, Ben Carson 0.90%, Rand Paul 0.19%, Mike Huckabee 0.11%, Chris Christie 0.11%, Carly Fiorina 0.08%, Rick Santorum 0.05%, Lindsey Graham 0.03%, Jim Gilmore 0.01% |
| Opinion Savvy/Fox 13/ Florida Times-Union/ Fox 35 Margin of error: ± 3.5% Sample size: 787 | March 13, 2016 | Donald Trump 44.3% | Marco Rubio 26.2% | Ted Cruz 18.2% | John Kasich 9.7%, Undecided 1.6% |
| Trafalgar Group Margin of error: ± 2.58% Sample size: 1500 | March 12–13, 2016 | Donald Trump 43.94% | Marco Rubio 24.46% | Ted Cruz 19.56% | John Kasich 8.57%, Undecided 3.47% |
| ARG Margin of error: ± 5% Sample size: 400 | March 11–13, 2016 | Donald Trump 49% | Marco Rubio 24% | Ted Cruz 16% | John Kasich 8%, Undecided 3% |
| Monmouth University Margin of error: ± 4.9% Sample size: 405 | March 11–13, 2016 | Donald Trump 44% | Marco Rubio 27% | Ted Cruz 17% | John Kasich 9%, Other 1%, Undecided 3% |
| Quinnipiac University Margin of error: ± 4% Sample size: 615 | March 8–13, 2016 | Donald Trump 46% | Marco Rubio 22% | Ted Cruz 14% | John Kasich 10%, Other 1%, No Preference 6% |
| CBS News/YouGov Margin of error: ± 4.8% Sample size: 827 | March 9–11, 2016 | Donald Trump 44% | Ted Cruz 24% | Marco Rubio 21% | John Kasich 9%, No Preference 2% |
| Florida Atlantic University Margin of error: ± 3% Sample size: 852 | March 8–11, 2016 | Donald Trump 44% | Marco Rubio 21% | Ted Cruz 21% | John Kasich 9%, Undecided 5% |
| NBC News/WSJ/Marist Margin of error: ± 4.3% Sample size: 511 | March 4–10, 2016 | Donald Trump 43% | Marco Rubio 22% | Ted Cruz 21% | John Kasich 9% |
| Opinion Savvy/Fox 13/ Florida Times-Union/ Fox 35 Margin of error: ± 4% Sample size: 590 | March 9, 2016 | Donald Trump 42.8% | Marco Rubio 23.5% | Ted Cruz 20.9% | John Kasich 10.4%, Undecided 2.5% |
| Trafalgar Group Margin of error: ± 2.83% Sample size: 1280 | March 8–9, 2016 | Donald Trump 41.87% | Marco Rubio 23.10% | Ted Cruz 21.43% | John Kasich 10.94%, Undecided 2.67% |
| Suffolk University/Boston Globe Margin of error: ± 4.4% Sample size: 500 | March 7–9, 2016 | Donald Trump 35.6% | Marco Rubio 26.6% | Ted Cruz 19.2% | John Kasich 9.8%, Undecided 7.6%, Other 1.2% |
| The Ledger/10 News WTSP Margin of error: ± 3.8% Sample size: 700 | March 7–9, 2016 | Donald Trump 36% | Marco Rubio 30% | Ted Cruz 17% | John Kasich 8% |
| Public Policy Polling Margin of error: ± 3.3% Sample size: 904 | March 7–8, 2016 | Donald Trump 42% | Marco Rubio 32% | Ted Cruz 14% | John Kasich 8%, Undecided 5% |
| Fox News Margin of error: ± 3.5% Sample size: 813 | March 5–8, 2016 | Donald Trump 43% | Marco Rubio 20% | Ted Cruz 16% | John Kasich 10%, Undecided 6%, Other 5% |
| University of North Florida Margin of error: ± 3.57% Sample size: 752 | March 2–7, 2016 | Donald Trump 35.5% | Marco Rubio 23.8% | Ted Cruz 15.5% | John Kasich 8.8%, Undecided 14.3%, Other 2.6% |
| Quinnipiac University Margin of error: ± 3.8% Sample size: 657 | March 2–7, 2016 | Donald Trump 45% | Marco Rubio 22% | Ted Cruz 18% | John Kasich 8%, Undecided 6%, Other 1% |
| SurveyUSA/Bay News 9/News 13 Margin of error: ± 3.3% Sample size: 937 | March 4–6, 2016 | Donald Trump 42% | Marco Rubio 22% | Ted Cruz 17% | John Kasich 10%, Undecided 5%, Other 3% |
| Monmouth University Margin of error: ± 4.9% Sample size: 403 | March 3–6, 2016 | Donald Trump 38% | Marco Rubio 30% | Ted Cruz 17% | John Kasich 10%, Ben Carson 1%, Undecided 5% |
| CNN/ORC Margin of error: ± 5.5% Sample size: 313 | March 2–6, 2016 | Donald Trump 40% | Marco Rubio 24% | Ted Cruz 19% | John Kasich 5% |
| Univision/Washington Post Margin of error: ± 5% Sample size: 450 | March 2–5, 2016 | Donald Trump 38% | Marco Rubio 31% | Ted Cruz 19% | John Kasich 4%, Don't Know 6%, Other 1% |
| Our Principles PAC Margin of error: ± 3.5% Sample size: 800 | February 29 – March 2, 2016 | Donald Trump 35.4% | Marco Rubio 30.3% | Ted Cruz 15.5% | John Kasich 8.5%, Ben Carson 4.6%, Undecided 5.6% |
| Public Policy Polling Margin of error: ± 4.6% Sample size: 464 | February 24–25, 2016 | Donald Trump 45% | Marco Rubio 25% | Ted Cruz 10% | John Kasich 8%, Ben Carson 5%, Undecided 7% |
| Associated Industries of Florida Margin of error: ± 4% Sample size: 600 | February 23–24, 2016 | Donald Trump 34% | Marco Rubio 27% | Ted Cruz 17% | John Kasich 5%, Ben Carson 5%, Undecided 12% |
| Quinnipiac University Margin of error: ± 3.7% Sample size: 705 | February 21–24, 2016 | Donald Trump 44% | Marco Rubio 28% | Ted Cruz 12% | John Kasich 7%, Ben Carson 4%, Someone else 1%, DK/NA 5% |
| Florida Southern College Center Margin of error: ± ?% Sample size: 268 | January 30- February 6, 2016 | Donald Trump 27.41% | Marco Rubio 20.43% | Ted Cruz 12.35% | Ben Carson 6.04%, Jeb Bush 3.71%, John Kasich 1.61%, Mike Huckabee 0.79%, Chris Christie 0.34%, others 1.17%, Don't Care 25.47% |
| CBS/YouGov Margin of error: ± 4.6% Sample size: 988 | January 18–21, 2016 | Donald Trump 41% | Ted Cruz 22% | Marco Rubio 18% | Ben Carson 5%, Jeb Bush 4%, John Kasich 2%, Chris Christie 2%, Rand Paul 1%, all others 0%, no preference 1% |
| Florida Atlantic University Margin of error: ± 4.9% Sample size: 386 | January 15–18, 2016 | Donald Trump 47.6% | Ted Cruz 16.3% | Marco Rubio 11.1% | Jeb Bush 9.5%, Ben Carson 3.3%, Rand Paul 3.1%, Chris Christie 2.6%, Mike Huckabee 2.6%, John Kasich 2.1%, Carly Fiorina 0.5%, Jim Gilmore 0.2%, Others 0.1%, Undecided 1.1% |
| Opinion Savvy/Fox 13/Florida Times-Union Margin of error: ± 3.3% Sample size: 838 | January 17, 2016 | Donald Trump 31% | Ted Cruz 19% | Jeb Bush 13% | Marco Rubio 12%, Ben Carson 7%, Chris Christie 4%, Carly Fiorina 4%, John Kasich 3%, Rand Paul 3%, Mike Huckabee 2%, Rick Santorum 0%, Undecided 2% |
| Associated Industries of Florida Margin of error: ± 3.5% Sample size: 800 | December 16–17, 2015 | Donald Trump 29% | Ted Cruz 18% | Marco Rubio 17% | Jeb Bush 10%, Ben Carson 6%, Other 8%, Undecided 12% |
| Opinion Savvy/Fox 13/Florida Times-Union Margin of error: ± 4.1% Sample size: 555 | December 16, 2015 | Donald Trump 29.7% | Ted Cruz 20.4% | Marco Rubio 15% | Jeb Bush 12.5%, Ben Carson 7.7%, Chris Christie 6.1%, Carly Fiorina 2.7%, Rand Paul 2.6%, John Kasich 0.9%, George Pataki 0.1%, Rick Santorum 0.1%, Undecided 2.2% |
| St. Pete Polls Margin of error: ± 1.5% Sample size: 2,694 | December 14–15, 2015 | Donald Trump 36% | Ted Cruz 22% | Marco Rubio 17% | Jeb Bush 9%, Ben Carson 6%, Chris Christie 3%, John Kasich 2%, Carly Fiorina 1%, Rand Paul 1%, Unsure or someone else 4% |
| St. Leo University Sample size: 404 | November 29 – December 3, 2015 | Donald Trump 30.6% | Marco Rubio 15.0% | Jeb Bush 14.3% | Ben Carson 10.9%, Ted Cruz 10.2%, Rand Paul 5.9%, Chris Christie 4.1%, Carly Fiorina 2.7%, John Kasich 2.0%, Mike Huckabee 1.4%, Rick Santorum 0.7%, Others 0.7%, Undecided 1.4% |
| Florida Atlantic University Margin of error: ± 5.2% Sample size: 355 | November 15–16, 2015 | Donald Trump 35.9% | Marco Rubio 18.4% | Ben Carson 14.5% | Ted Cruz 10%, Jeb Bush 8.9%, Rand Paul 4.1%, John Kasich 3%, Carly Fiorina 2.4%, Mike Huckabee 0.4%, Lindsey Graham 0.4%, Chris Christie 0.1%, Others 0.3%, Undecided 1.9% |
| Florida Times-Union Margin of error: ± 3.4% Sample size: 806 | November 11, 2015 | Donald Trump 22.7% | Ben Carson 22.3% | Marco Rubio 17.9% | Ted Cruz 12.4%, Jeb Bush 10.9%, Carly Fiorina 4.7%, Chris Christie 2.9%, John Kasich 2.8%, Rand Paul 1%, Mike Huckabee 1%, Bobby Jindal 0.4%, Rick Santorum 0.1%, George Pataki 0%, Lindsey Graham 0%, Undecided 1% |
| SurveyUSA Margin of error: ± 3.3% Sample size: 922 | October 28 – November 1, 2015 | Donald Trump 37% | Ben Carson 17% | Marco Rubio 16% | Ted Cruz 10%, Jeb Bush 7%, Carly Fiorina 3%, John Kasich 3% Mike Huckabee 1% other 1%, unsure 3% |
| Viewpoint Florida Margin of error: ± 2.2% Sample size: 2047 | October 29–30, 2015 | Donald Trump 26.81% | Marco Rubio 16.28% | Ben Carson 15.07% | Ted Cruz 12.41%, Jeb Bush 12.07%, Carly Fiorina 4.40%, other 4.67%, unsure 8.29% |
| Saint Leo University Polling Institute Margin of error: ± 7.0% Sample size: 163 | October 17–22, 2015 | Donald Trump 25.8% | Marco Rubio 21.5% | Jeb Bush 15.3% | Ben Carson 14.7% |
| UNF Margin of error: ± 3.87% Sample size: 627 | October 8–13, 2015 | Donald Trump 21.7% | Ben Carson 19.3% | Marco Rubio 14.9% | Jeb Bush 9%, Ted Cruz 6.8%, Carly Fiorina 6.5%, John Kasich 3.5%, Mike Huckabee 1.4%, Chris Christie 1.3%, Rand Paul <1%, George Pataki <1%, Rick Santorum <1%, Lindsey Graham <1%, Bobby Jindal <1%, Someone else 1.5%, DK 8%, NA 4.1% |
| Quinnipiac University Margin of error: ± 4.6% Sample size: 461 | September 25 – October 5, 2015 | Donald Trump 28% | Ben Carson 16% | Marco Rubio 14% | Jeb Bush 12%, Carly Fiorina 7%, Ted Cruz 6%, Rand Paul 2%, John Kasich 2%, Chris Christie 2%, Mike Huckabee 1%, Jim Gilmore 0%, George Pataki 0%, Rick Santorum 0%, Lindsey Graham 0%, Bobby Jindal 0%, Would not vote 1%, Someone else 0%, DK/NA 10% |
| FL Chamber Margin of error: ± 4% Sample size: ? | September 16–20, 2015 | Donald Trump 25% | Marco Rubio 14% | Jeb Bush 13% | Carly Fiorina 11%, Ben Carson 9%, Ted Cruz 6% |
| Florida Atlantic Univ. Margin of error: ± 5.2% Sample size: 352 | September 17–20, 2015 | Donald Trump 31.5% | Marco Rubio 19.2% | Jeb Bush 11.3% | Ben Carson 10.3%, Carly Fiorina 8.3%, Ted Cruz 5.8%, Chris Christie 4.1%, Rand Paul 3.2%, Scott Walker 2%, John Kasich 1.7%, Mike Huckabee 1.4%, Undecided 1.1% |
| Public Policy Polling Margin of error: ± 5.0% Sample size: 377 | September 11–13, 2015 | Donald Trump 28% | Ben Carson 17% | Jeb Bush 13% | Marco Rubio 10%, Ted Cruz 9%, Carly Fiorina 7%, John Kasich 5%, Mike Huckabee 3%, Chris Christie 2%, Scott Walker 2%, Bobby Jindal 1%, Rick Santorum 1%, Rand Paul 0%, Lindsey Graham 0%, Jim Gilmore 0%, Undecided 1% |
| Opinion Savvy Margin of error: ± 4.3% Sample size: 498 | September 2, 2015 | Donald Trump 28.9% | Ben Carson 24.5% | Jeb Bush 18.6% | Marco Rubio 5.6%, Carly Fiorina 5%, John Kasich 2.6%, Ted Cruz 2.5%, Chris Christie 2.4%, Mike Huckabee 2.4%, Scott Walker 1.2%, Bobby Jindal 0.7%, Rand Paul 0.4%, Lindsey Graham 0.3% Rick Santorum 0.1%, Rick Perry 0%, Someone Else 1.4%, undecided 3.5% |
| Quinnipiac University Margin of error: ± 4.5% Sample size: 477 | August 7–18, 2015 | Donald Trump 21% | Jeb Bush 17% | Ben Carson 11% | Marco Rubio 11%, Ted Cruz 7%, Carly Fiorina 7%, Mike Huckabee 4%, Scott Walker 4%, Rand Paul 4%, John Kasich 3%, Bobby Jindal 1%, Chris Christie 1%, Rick Perry 0%, Lindsey Graham 0%, Wouldn't vote 1%, Don't know 8% |
| Opinion Savvy/Insider Advantage Margin of error: ± 4.1% Sample size: 547 | August 3, 2015 | Donald Trump 26.6% | Jeb Bush 26.2% | Ben Carson 8.3% | Ted Cruz 8.2%, Marco Rubio 6.5%, Scott Walker 5.8%, Mike Huckabee 4.2%, John Kasich 3.1%, Bobby Jindal 2.4%, Carly Fiorina 1.8%, Rand Paul 1.8%, Chris Christie 1.2%, Rick Perry 0.7%, George Pataki 0.3%, Lindsey Graham 0%, Someone else 1.3%, Undecided 1.5% |
| St. Pete Margin of error: ± 2.2% Sample size: 1,902 | July 18–28, 2015 | Donald Trump 26.1% | Jeb Bush 20% | Scott Walker 12.2% | Marco Rubio 9.7%, Ben Carson 4.5%, Ted Cruz 4.2%, John Kasich 4.1%, Rand Paul 3.3%, Someone else/Unsure 15.9% |
| Mason-Dixon Margin of error: ± 4.5% Sample size: 500 | July 20–23, 2015 | Jeb Bush 28% | Marco Rubio 16% | Scott Walker 13% | Donald Trump 11%, Mike Huckabee 5%, Ted Cruz 4%, Rand Paul 3%, John Kasich 3%, Carly Fiorina 2%, Ben Carson 1%, Bobby Jindal 1%, Rick Santorum 0%, Rick Perry 0%, Chris Christie 0%, Lindsey Graham 0%, George Pataki 0%, Undecided 13% |
| Gravis Marketing Margin of error: ± 3.0% Sample size: 729 | June 16–20, 2015 | Jeb Bush 27.5% | Marco Rubio 23% | Rand Paul 8.8% | Scott Walker 8.7%, Carly Fiorina 6.2%, Ted Cruz 5.2%, Mike Huckabee 4.5%, Bobby Jindal 2.4%, Lindsey Graham 0.3%, Rick Santorum 0.1%, Unsure 13.3% |
| Quinnipiac University Margin of error: ± 4.8% Sample size: 413 | June 4–15, 2015 | Jeb Bush 20% | Marco Rubio 18% | Scott Walker 9% | Ben Carson 7%, Mike Huckabee 6%, Rand Paul 5%, Rick Perry 4%, Chris Christie 3%, Ted Cruz 3%, Donald Trump 3%, Carly Fiorina 2%, Lindsey Graham 1%, Bobby Jindal 1%, John Kasich 1%, George Pataki 1%, Rick Santorum 1%, Someone else 1%, Wouldn't vote 1%, Don't know 13% |
| Mason-Dixon Margin of error: ± 5% Sample size: 400 | April 14–16, 2015 | Marco Rubio 31% | Jeb Bush 30% | Ted Cruz 8% | Rand Paul 7%, Scott Walker 2%, Other 5% Undecided 17% |
| Quinnipiac University Margin of error: ± 4.7% Sample size: 428 | March 17–28, 2015 | Jeb Bush 24% | Scott Walker 15% | Marco Rubio 12% | Ben Carson 8%, Ted Cruz 7%, Mike Huckabee 6%, Rand Paul 4%, Rick Perry 2%, Chris Christie 1%, John Kaisch 1%, Lindsey Graham 0%, Bobby Jindal 0%, Rick Santorum 0%, Someone else 3%, Wouldn't vote 1% Undecided 15% |
| Quinnipiac University Margin of error: ± 4.7% Sample size: 428 | March 17–28, 2015 | Marco Rubio 21% | Scott Walker 17% | Ben Carson 9% | Ted Cruz 8%, Rand Paul 7%, Mike Huckabee 6%, Chris Christie 3%, Rick Perry 3%, Lindsey Graham 1%, Bobby Jindal 1%, John Kaisch 1%, Rick Santorum 0%, Someone else 3%, Wouldn't vote 2% Undecided 20% |
| Quinnipiac University Margin of error: ± 4.7% Sample size: 428 | March 17–28, 2015 | Jeb Bush 26% | Marco Rubio 15% | Ben Carson 10% | Ted Cruz 10%, Mike Huckabee 6%, Rand Paul 5%, Rick Perry 3%, Chris Christie 2%, Bobby Jindal 2%, John Kaisch 1%, Lindsey Graham 0%, Rick Santorum 0%, Someone else 3%, Wouldn't vote 1% Undecided 16% |
| Public Policy Polling Margin of error: ± 4.8% Sample size: 425 | March 19–22, 2015 | Jeb Bush 25% | Scott Walker 17% | Marco Rubio 15% | Ben Carson 12%, Mike Huckabee 7%, Ted Cruz 6%, Chris Christie 4%, Rand Paul 4%, Rick Perry 3%, Undecided 6% |
| Gravis Marketing Margin of error: ± 4% Sample size: 513 | February 24–25, 2015 | Jeb Bush 23% | Scott Walker 22% | Marco Rubio 11% | Mike Huckabee 10%, Ben Carson 8%, Chris Christie 6%, Rand Paul 5%, Ted Cruz 2%, Rick Perry 1%, Undecided 12% |
| Gravis Marketing Margin of error: ± 4% Sample size: 513 | February 24–25, 2015 | Jeb Bush 40% | Marco Rubio 36% | | Undecided 24% |
| Quinnipiac University Margin of error: ± 5.3% Sample size: 348 | January 22 – February 1, 2015 | Jeb Bush 30% | Marco Rubio 13% | Mike Huckabee 10% | Mitt Romney 9%, Scott Walker 8%, Ben Carson 7%, Ted Cruz 3%, Bobby Jindal 3%, Rand Paul 3%, Rick Santorum 3%, Chris Christie 2%, Rick Perry 1%, John Kasich 0%, Other 1%, Wouldn't vote 0%, Undecided 8% |
| Quinnipiac University Margin of error: ± 5.3% Sample size: 348 | January 22 – February 1, 2015 | Jeb Bush 32% | Marco Rubio 15% | Mike Huckabee 11% | Scott Walker 9%, Ben Carson 8%, Ted Cruz 4%, Chris Christie 3%, Bobby Jindal 3%, Rand Paul 3%, Rick Santorum 3%, Rick Perry 1%, John Kasich 0%, Other 1%, Wouldn't vote 0%, Undecided 8% |
| Gravis Marketing Margin of error: ± 3% Sample size: 811 | November 19–20, 2014 | Jeb Bush 33% | Marco Rubio 14% | Ted Cruz 11% | Rand Paul 11%, Chris Christie 6%, Nikki Haley 5%, Paul Ryan 5%, Rick Santorum 3%, Undecided 13% |
| Gravis Marketing Margin of error: ± 3% Sample size: 811 | November 19–20, 2014 | Jeb Bush 44% | Marco Rubio 34% | | Undecided 22% |
| Quinnipiac University Margin of error: ± 4.6% Sample size: 451 | July 17–21, 2014 | Jeb Bush 21% | Marco Rubio 18% | Ted Cruz 10% | Rand Paul 8%, Mike Huckabee 7%, Chris Christie 6%, Rick Perry 5%, Paul Ryan 2%, Scott Walker 2%, Bobby Jindal 1%, John Kasich 1%, Rick Santorum 1%, Other 2%, Wouldn't vote 4%, Undecided 13% |
| Public Policy Polling Margin of error: ± 5.5% Sample size: 315 | June 6–9, 2014 | Jeb Bush 30% | Marco Rubio 14% | Rand Paul 11% | Ted Cruz 9%, Chris Christie 8%, Mike Huckabee 7%, Scott Walker 7%, Paul Ryan 2%, Bobby Jindal 1%, Someone else/Not sure 10% |
| Public Policy Polling Margin of error: ± 5.5% Sample size: 315 | June 6–9, 2014 | Marco Rubio 45% | Jeb Bush 41% | | Not sure 14% |
| Quinnipiac University Margin of error: ± 4.4% Sample size: 501 | April 23–28, 2014 | Jeb Bush 27% | Rand Paul 14% | Marco Rubio 11% | Chris Christie 7%, Ted Cruz 6%, Mike Huckabee 6%, Paul Ryan 6%, Scott Walker 4%, Bobby Jindal 1%, Other 1%, Wouldn't vote 2%, Undecided 16% |
| Magellan Strategies Margin of error: ± 3.33% Sample size: 868 | April 14–15, 2014 | Jeb Bush 38% | Mike Huckabee 11% | Ted Cruz 10% | Rand Paul 10%, Marco Rubio 8%, Chris Christie 7%, Scott Walker 7%, John Kasich 3%, Undecided 6% |
| Quinnipiac University Margin of error: ± 4.1% Sample size: 586 | January 22–27, 2014 | Jeb Bush 25% | Marco Rubio 16% | Rand Paul 11% | Chris Christie 9%, Ted Cruz 9%, Paul Ryan 5%, Scott Walker 5%, Bobby Jindal 3%, Other 2%, Wouldn't vote 2%, Undecided 14% |
| Quinnipiac University Margin of error: ± 3.8% Sample size: 668 | November 12–17, 2013 | Jeb Bush 22% | Marco Rubio 18% | Chris Christie 14% | Ted Cruz 12%, Rand Paul 9%, Paul Ryan 6%, Bobby Jindal 3%, Scott Walker 2%, Other 1%, Wouldn't vote 1%, Undecided 12% |
| Public Policy Polling Margin of error: ± 5.4% Sample size: 326 | March 15–18, 2013 | Jeb Bush 30% | Marco Rubio 29% | Rand Paul 11% | Mike Huckabee 9%, Chris Christie 8%, Paul Ryan 4%, Bobby Jindal 2%, Rick Perry 1%, Susana Martinez 0%, Someone Else/Undecided 6% |
| Public Policy Polling Margin of error: ± 5.4% Sample size: 326 | March 15–18, 2013 | Marco Rubio 49% | Jeb Bush 36% | | Undecided 15% |
| Public Policy Polling Margin of error: ± 4.7% Sample size: 436 | January 11–13, 2013 | Marco Rubio 31% | Jeb Bush 26% | Mike Huckabee 11% | Chris Christie 7%, Bobby Jindal 5%, Rand Paul 5%, Paul Ryan 5%, Susana Martinez 2%, Rick Perry 2%, Someone Else/Undecided 5% |

## Georgia

Winner: Donald Trump Primary date: March 1, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Primary results | March 1, 2016 | Donald Trump 38.81% | Marco Rubio 24.45% | Ted Cruz 23.60% | Ben Carson 6.23%, John Kasich 5.69%, Jeb Bush 0.69%, Rand Paul 0.22%, Mike Huckabee 0.20%, Chris Christie 0.11%, Carly Fiorina 0.09%, Rick Santorum 0.04%, Lindsey Graham 0.03%, George Pataki 0.02%, |
| SurveyMonkey Margin of error: ± ?% Sample size: 1171 | February 22–29, 2016 | Donald Trump 39% | Ted Cruz 21% | Marco Rubio 20% | Ben Carson 9%, John Kasich 6%, Undecided 6% |
| Landmark/RosettaStone Margin of error: ± 2.6% Sample size: 1400 | February 28, 2016 | Donald Trump 39% | Marco Rubio 20% | Ted Cruz 15% | Ben Carson 9%, John Kasich 8%, Undecided 9% |
| Opinion Savvy/Fox 5 Atlanta Margin of error: ± 3.7% Sample size: 710 | February 27–28, 2016 | Donald Trump 32.5% | Marco Rubio 23.2% | Ted Cruz 23.2% | John Kasich 10.7%, Ben Carson 6.1%, Undecided 4.3% |
| Trafalgar Group Margin of error: ± 3.14% Sample size: 1350 | February 26–28, 2016 | Donald Trump 38.6% | Marco Rubio 23.54% | Ted Cruz 20.74% | John Kasich 7.03%, Ben Carson 6.14%, Undecided 3.95% |
| CBS/YouGov Margin of error: ± 7% Sample size: 493 | February 22–26, 2016 | Donald Trump 40% | Ted Cruz 29% | Marco Rubio 22% | Ben Carson 7%, John Kasich 2% |
| ResearchNOW/WABE Margin of error: ± 4.1% Sample size: 400 | February 22–24, 2016 | Donald Trump 41% | Marco Rubio 18% | Ted Cruz 15% | Ben Carson 8%, John Kasich 7%, Undecided 10% |
| SurveyUSA/TEGNA Margin of error: ± 3.8% Sample size: 684 | February 22–23, 2016 | Donald Trump 45% | Marco Rubio 19% | Ted Cruz 16% | Ben Carson 8%, John Kasich 6%, Other 1%, Undecided 5% |
| Opinion Savvy/Fox 5 Atlanta Margin of error: ± 3.6% Sample size: 745 | February 22–23, 2016 | Donald Trump 33.6% | Marco Rubio 22.2% | Ted Cruz 20.4% | John Kasich 8.9%, Ben Carson 7.7%, Undecided 7.2% |
| NBC News/Wall Street Journal/Marist Margin of error: ± 4.2% Sample size: 543 | February 18–23, 2016 | Donald Trump 30% | Ted Cruz 23% | Marco Rubio 23% | Ben Carson 9%, John Kasich 9% |
| Landmark/RosettaStone Margin of error: ± 4.4% Sample size: 500 | February 21, 2016 | Donald Trump 31.7% | Marco Rubio 22.7% | Ted Cruz 18.7% | Ben Carson 8.1%, John Kasich 7.9%, Undecided 10.9% |
| Landmark/RosettaStone Margin of error: ± 4.4% Sample size: 500 | February 4, 2016 | Donald Trump 27.3% | Ted Cruz 18.3% | Marco Rubio 18.2% | Ben Carson 7.7%, John Kasich 4.4%, Chris Christie 3.9%, Jeb Bush 3.0%, Carly Fiorina 1.8%, Undecided 15.4% |
| CBS/YouGov Margin of error: ± 6.2% Sample size: 494 | January 18–21, 2016 | Donald Trump 39% | Ted Cruz 29% | Marco Rubio 13% | Ben Carson 6%, Jeb Bush 2%, Chris Christie 2%, Carly Fiorina 2%, Mike Huckabee 2%, John Kasich 2%, Jim Gilmore 0%, Rand Paul 0%, Rick Santorum 0%, No preference 1% |
| Opinion Savvy/Fox 5 Atlanta Margin of error: ± 3.4% Sample size: 803 | January 17, 2016 | Donald Trump 33.4% | Ted Cruz 23.4% | Marco Rubio 8.2% | Ben Carson 7.3%, Jeb Bush 7.1%, John Kasich 3.8%, Chris Christie 3.7%, Carly Fiorina 3.5%, Rand Paul 3.5%, Mike Huckabee 3.2%, Rick Santorum 0.1%, Undecided 2.7% |
| Opinion Savvy/Fox 5 Atlanta Margin of error: ± 4.2% Sample size: 538 | December 16, 2015 | Donald Trump 34.6% | Ted Cruz 15.8% | Marco Rubio 12% | Ben Carson 6.4%, Jeb Bush 6%, Chris Christie 5.6%, Carly Fiorina 5.1%, John Kasich 2.3%, Rand Paul 2.1%, Lindsey Graham 1.4%, Mike Huckabee 1.4%, George Pataki 0.5%, Undecided 6.8% |
| WSB TV/Landmark Margin of error: ±3.3% Sample size: 800 | December 10, 2015 | Donald Trump 43.3% | Ted Cruz 16.2% | Marco Rubio 10.6% | Ben Carson 6.7%, Jeb Bush 4.8%, Mike Huckabee 1.9%, Carly Fiorina 1.8%, John Kasich 1.5%, Rand Paul 0.5%, Undecided 12.9% |
| FOX 5/Morris News Margin of error: ±4.7% Sample size: 674 | November 9–10, 2015 | Ben Carson 26% | Donald Trump 24% | Ted Cruz 14% | Marco Rubio 9%, Jeb Bush 8%, Carly Fiorina 6% |
| WXIA-TV/SurveyUSA Margin of error: ±2% Sample size: 2,075 | October 26, 2015 | Donald Trump 35% | Ben Carson 28% | Marco Rubio 12% | Ted Cruz 8%, Jeb Bush 4%, Carly Fiorina 3%, Mike Huckabee 3%, John Kasich 2% |
| WSB/Landmark Margin of error: ±4% Sample size: 600 | September 23, 2015 | Donald Trump 30.8% | Ben Carson 17.9% | Carly Fiorina 13.2% | Marco Rubio 9.4%, Ted Cruz 7.9%, Jeb Bush 7.5%, Mike Huckabee 4.4%, John Kasich 1.9%, Rand Paul 1.1%, Undecided 5.9% |
| Opinion Savvy Margin of error: ±3.8% Sample size: 664 | September 3, 2015 | Donald Trump 34.2% | Ben Carson 24.8% | Jeb Bush 10.9% | Ted Cruz 6.3%, Mike Huckabee 5.1%, Carly Fiorina 4.5%, John Kasich 2.5%, Marco Rubio 2.1%, Chris Christie 2%, Scott Walker 1.9%, Rick Perry 0.1%, Rick Santorum 0.1%, Bobby Jindal 0.1%, Lindsey Graham 0.1%, Rand Paul 0%, George Pataki 0%, Someone else 1.8%, Undecided 3.5% |
| WSB/Landmark Margin of error: ± 4.0% Sample size: 600 | August 5, 2015 | Donald Trump 34.3% | Jeb Bush 12.0% | Scott Walker 10.4% | Mike Huckabee 8.1%, Ben Carson 8.1%, Ted Cruz 5.4%, John Kasich 4.5%, Marco Rubio 4.5%, Chris Christie 2.8%, Rand Paul 2.4%, Undecided 7.5% |
| 5 Atlanta/Morris News Service Margin of error: ± 4.1% Sample size: 569 | August 3, 2015 | Donald Trump 30.4% | Jeb Bush 17.3% | Ben Carson 9.6% | Mike Huckabee 6.5%, Ted Cruz 5.9%, Scott Walker 5%, Rand Paul 3.4%, Chris Christie 3.2%, Marco Rubio 3% John Kasich 2.8%, Carly Fiorina 2.5% Rick Perry 2.1% Bobby Jindal 1.7%, Lindsey Graham 0.4%, George Pataki 0.2%, Rick Santorum 0.1%, Other/No opinion 5.9% |
| Landmark Communications/Rosetta Stone Margin of error: ± 4.3% Sample size: 500 | May 11–12, 2015 | Mike Huckabee 18.3% | Ben Carson 15.4% | Scott Walker 12.6% | Jeb Bush 10.1%, Marco Rubio 9.6%, Ted Cruz 9.3%, Rand Paul 4%, Carly Fiorina 2.6%, Chris Christie 2.2%, Rick Santorum 0.3%, Other/No opinion 15.6% |
| Insider Advantage Margin of error: ± ? Sample size: 200 | February 4, 2015 | Jeb Bush 21.5% | Scott Walker 17.3% | Mike Huckabee 16.4% | Ben Carson 15.5%, Rick Perry 7.2%, Rand Paul 3.9%, Marco Rubio 3.9%, Chris Christie 3%, Donald Trump 1.9%, Other/No opinion 9.5% |

## Hawaii

Winner: Donald Trump Caucus date: March 8, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Caucus results | March 8, 2016 | Donald Trump 42.4% | Ted Cruz 32.7% | Marco Rubio 13.1% | John Kasich 10.6%, Other 1.1% |

## Idaho

Winner: Ted Cruz Primary date: March 8, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Primary results | March 8, 2016 | Ted Cruz 45.42% | Donald Trump 28.11% | Marco Rubio 15.91% | John Kasich 7.43%, Ben Carson 1.75%, Jeb Bush 0.42%, Rand Paul 0.38%, Mike Huckabee 0.16%, Chris Christie 0.16%, Carly Fiorina 0.11%, Rick Santorum 0.10%, Lindsey Graham 0.03% |
| Dan Jones & Associates Margin of error: ± 4% Sample size: 230 | February 17–26, 2016 | Donald Trump 30% | Ted Cruz 19% | Marco Rubio 16% | Ben Carson 11%, John Kasich 5%, Others 9%, Don't Know 11% |
| Dan Jones & Associates Margin of error: ± 3.93% Sample size: 621 | January 21–31, 2016 | Donald Trump 31% | Ted Cruz 19% | Ben Carson 13% | Marco Rubio 11%, Others 20%, Don't Know 6% |
| Dan Jones & Associates Margin of error: ± 3.99% Sample size: 604 | December 17–29, 2015 | Donald Trump 30% | Ben Carson 19% | Ted Cruz 16% | Marco Rubio 10%, Don't Know 10% |
| Dan Jones & Associates Margin of error: ± 4.35% Sample size: 508 | August 20–31, 2015 | Donald Trump 28% | Ben Carson 15% | Ted Cruz 7% | Jeb Bush 7%, Marco Rubio 6%, Rand Paul 5%, Don't Know 17% |
| Dan Jones & Associates Margin of error: ± ?% Sample size: ? | Published August 9, 2015 | Donald Trump 19% | Jeb Bush 10% | all others <10% | Don't know 24% |
| Idaho Politics Weekly Margin of error: ± ?% Sample size: ? | June 17, 2015 – July 1, 2015 | Jeb Bush 15% | Donald Trump 12% | Rand Paul 10% | Ben Carson 8%, Marco Rubio 7%, Mike Huckabee 5%, Someone else 13%, Don't know 23% |

## Illinois

Winner: Donald Trump Primary date: March 15, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Primary results | March 15, 2016 | Donald Trump 38.80% | Ted Cruz 30.23% | John Kasich 19.74% | Marco Rubio 8.74%, Ben Carson 0.79%, Jeb Bush 0.77%, Rand Paul 0.33%, Chris Christie 0.24%, Mike Huckabee 0.19%, Carly Fiorina 0.11%, Rick Santorum 0.08% |
| CBS News/YouGov Margin of error: ± 4.4% Sample size: 770 | March 9–11, 2016 | Donald Trump 38% | Ted Cruz 34% | John Kasich 16% | Marco Rubio 11%, No Preference 1% |
| NBC News/WSJ/Marist Margin of error: ± 4.8% Sample size: 421 | March 4–10, 2016 | Donald Trump 34% | Ted Cruz 25% | John Kasich 21% | Marco Rubio 16% |
| WeAskAmerica Margin of error: ± 3.09% Sample size: 1009 | March 7–8, 2016 | Donald Trump 32.64% | Ted Cruz 19.9% | John Kasich 18.41% | Marco Rubio 11.34%, Other 1.49%, Undecided 16.22% |
| Chicago Tribune Margin of error: ± 4.1% Sample size: 600 | March 2–6, 2016 | Donald Trump 32% | Ted Cruz 22% | Marco Rubio 21% | John Kasich 18%, Undecided 7% |
| WeAskAmerica Margin of error: ± 3% Sample size: 1311 | February 24, 2016 | Donald Trump 38.44% | Marco Rubio 21.21% | Ted Cruz 15.87% | John Kasich 9.31%, Other 4.73%, Undecided 10.45% |
| Paul Simon Public Policy Institute Margin of error: ± 5.6% Sample size: 306 | February 15–20, 2016 | Donald Trump 28% | Ted Cruz 15% | Marco Rubio 14% | John Kasich 13%, Jeb Bush 8%, Ben Carson 6%, Other 1%, Undecided 15% |
| Compass Consulting Margin of error: ± 2.5% Sample size: 2,104 | December 16, 2015 | Donald Trump 30% | Ted Cruz 15% | Marco Rubio 13% | Jeb Bush 7%, Ben Carson 6%, Chris Christie 6%, John Kasich 3%, Carly Fiorina 2%, Rand Paul 2%, Other 2%, Undecided 11% |
| Victory Research Margin of error: ± 3.46% Sample size: 801 | August 16–18, 2015 | Donald Trump 23.3% | Jeb Bush 16.5% | Scott Walker 11% | Ben Carson 5.5%, Marco Rubio 5%, Carly Fiorina 4.6%, Other 16.2%, Undecided 17.9% |
| Public Policy Polling Margin of error: ± 5.1% Sample size: 369 | July 20–21, 2015 | Scott Walker 23% | Donald Trump 18% | Jeb Bush 11% | Chris Christie 8%, Ben Carson 7%, Marco Rubio 6%, Rand Paul 5%, Mike Huckabee 5%, Ted Cruz 4%, Carly Fiorina 3%, Rick Santorum 2%, Bobby Jindal 2%, Rick Perry 1%, John Kasich 1%, Lindsey Graham 1%, Undecided 3% |
| Public Policy Polling Margin of error: ± 5.1% Sample size: 375 | November 22–25, 2013 | Chris Christie 18% | Ted Cruz 13% | Jeb Bush 12% | Rand Paul 10%, Paul Ryan 9%, Scott Walker 7%, Marco Rubio 6%, Bobby Jindal 4%, Rick Santorum 4%, Other/Undecided 16% |

## Indiana

Winner: Donald Trump Primary date: May 3, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Primary results | May 3, 2016 | Donald Trump 53.25% | Ted Cruz 36.64% | John Kasich 7.57% | Ben Carson 0.80%, Jeb Bush 0.59%, Marco Rubio 0.47%, Rand Paul 0.39%, Chris Christie 0.16%, Carly Fiorina 0.13% |
| Gravis Marketing Margin of error: ± 5.0% Sample size: 379 | April 28–29, 2016 | Donald Trump 44% | Ted Cruz 27% | John Kasich 9% | Undecided 19% |
| ARG Margin of error: ± 4.0% Sample size: 400 | April 27–28, 2016 | Donald Trump 41% | Ted Cruz 32% | John Kasich 21% | Undecided 6% |
| NBC News/Wall Street Journal/Marist Margin of error: ± 3.9% Sample size: 645 | April 26–28, 2016 | Donald Trump 49% | Ted Cruz 34% | John Kasich 13% | Undecided 4% |
| IPFW Margin of error: ± 4.9% Sample size: 400 | April 13–27, 2016 | Ted Cruz 45% | Donald Trump 29% | John Kasich 13% | Undecided 13% |
| Clout Research Margin of error: ±4.75% Sample size: 423 | April 27, 2016 | Donald Trump 37.1% | Ted Cruz 35.2% | John Kasich 16.3% | Undecided 11.4% |
| CBS News/YouGov Margin of error: ± 6.6% Sample size: 548 | April 20–22, 2016 | Donald Trump 40% | Ted Cruz 35% | John Kasich 20% | Undecided 5% |
| Fox News Margin of error: ± 4% Sample size: 602 | April 18–21, 2016 | Donald Trump 41% | Ted Cruz 33% | John Kasich 16% | Undecided 7%, None 2% |
| POS/Howey Politics Indiana/WTHR Channel Margin of error: ± 4.3% Sample size: 507 | April 18–21, 2016 | Donald Trump 37% | Ted Cruz 31% | John Kasich 22% | Undecided 7%, Other 2% |
| Bellwether Margin of error: ± 3.5% Sample size: 670 | December 2–9, 2015 | Donald Trump 26% | Ted Cruz 17% | Marco Rubio 17% | Ben Carson 16%, Jeb Bush 6%, Rand Paul 5%, Chris Christie 3%, Carly Fiorina 3%, Rick Santorum 1%, Mike Huckabee 1%, John Kasich 1% |

## Iowa

Winner: Ted Cruz Caucus date: February 1, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Caucus results | February 1, 2016 | Ted Cruz 27.64% | Donald Trump 24.30% | Marco Rubio 23.12% | Ben Carson 9.30%, Rand Paul 4.54%, Jeb Bush 2.80%, Carly Fiorina 1.86%, John Kasich 1.86%, Mike Huckabee 1.79%, Chris Christie 1.76%, Rick Santorum 0.95%, Jim Gilmore 0.01%, Other 0.06% |
| Emerson College Margin of error: ± 5.6% Sample size: 298 | January 29–31, 2016 | Donald Trump 27.3% | Ted Cruz 25.6% | Marco Rubio 21.6% | Mike Huckabee 4.7%, Jeb Bush 3.8%, John Kasich 3.8%, Rand Paul 3.4%, Ben Carson 3.4%, Chris Christie 3.2%, Carly Fiorina 1.7%, Rick Santorum 0.5%, Undecided 1% |
| Quinnipiac University Margin of error: ± 3.3% Sample size: 890 | January 25–31, 2016 | Donald Trump 31% | Ted Cruz 24% | Marco Rubio 17% | Ben Carson 8%, Jeb Bush 4%, Rand Paul 4%, Mike Huckabee 3%, Carly Fiorina 2%, John Kasich 2%, Chris Christie 1%, Rick Santorum 1%, Jim Gilmore 0%, Not decided 3% |
| Opinion Savvy Margin of error: ± 3.2% Sample size: 887 | January 29–30, 2016 | Donald Trump 20.1% | Ted Cruz 19.4% | Marco Rubio 18.6% | Ben Carson 9.0%, Rand Paul 8.6%, Jeb Bush 4.9%, Mike Huckabee 4.4%, John Kasich 4.0%, Carly Fiorina 3.8%, Chris Christie 3.0%, Rick Santorum 2.1%, Undecided 2.2% |
| Des Moines Register/ Bloomberg/Selzer Margin of error: ± 3.5% Sample size: 602 | January 26–29, 2016 | Donald Trump 28% | Ted Cruz 23% | Marco Rubio 15% | Ben Carson 10%, Rand Paul 5%, Chris Christie 3%, Jeb Bush 2%, Mike Huckabee 2%, Carly Fiorina 2%, John Kasich 2%, Rick Santorum 2%, Jim Gimore 0%, Undecided 2%, Uncommitted 3% |
| Public Policy Polling Margin of error: ± 3.5% Sample size: 780 | January 26–27, 2016 | Donald Trump 31% | Ted Cruz 23% | Marco Rubio 14% | Ben Carson 9%, Jeb Bush 4%, Mike Huckabee 4%, Rand Paul 4%, Carly Fiorina 3%, John Kasich 2%, Chris Christie 2%, Rick Santorum 1%, Jim Gimore 1%, Undecided 2% |
| NBC/WSJ/Marist Margin of error: ± 4.8% Sample size: 415 | January 24–26, 2016 | Donald Trump 32% | Ted Cruz 25% | Marco Rubio 18% | Ben Carson 8%, Jeb Bush 4%, Carly Fiorina 2%, John Kasich 2%, Rand Paul 2%, Chris Christie 2%, Mike Huckabee 2%, Other 0%, Undecided 3% |
| Monmouth University Margin of error: ± 4.4% Sample size: 500 | January 23–26, 2016 | Donald Trump 30% | Ted Cruz 23% | Marco Rubio 16% | Ben Carson 10%, Jeb Bush 4%, Rand Paul 3%, John Kasich 3%, Mike Huckabee 3%, Chris Christie 2%, Carly Fiorina 2%, Rick Santorum 1%, Jim Gilmore 0%, Other 0%, Undecided 3% |
| ARG Margin of error: ± 5.0% Sample size: 400 | January 21–24, 2016 | Donald Trump 33% | Ted Cruz 26% | Marco Rubio 11% | Ben Carson 7%, Chris Christie 4%, Rand Paul 4%, Jeb Bush 3%, John Kasich 3%, Mike Huckabee 2%, Rick Santorum 1%, Carly Fiorina 1%, Jim Gilmore 0%, Other 1%, Undecided 5% |
| Quinnipiac University Margin of error: ± 3.8% Sample size: 651 | January 18–24, 2016 | Donald Trump 31% | Ted Cruz 29% | Marco Rubio 13% | Ben Carson 7%, Rand Paul 5%, Jeb Bush 4%, Chris Christie 3%, Mike Huckabee 2%, Carly Fiorina 1%, John Kasich 1%, Jim Gilmore 0%, Rick Santorum 0%, Not decided 2% |
| ISU/WHO-HD Margin of error: ± ?% Sample size: 283 | January 5–22, 2016 | Ted Cruz 25.8% | Donald Trump 18.9% | Ben Carson 13.4% | Marco Rubio 12.3%, Rand Paul 6.9%, Jeb Bush 3.8%, Mike Huckabee 3.7%, Carly Fiorina 1.1%, Rick Santorum <1%, Chris Christie <1%, John Kasich <1% |
| Fox News Margin of error: ± 5.0% Sample size: 378 | January 18–21, 2016 | Donald Trump 34% | Ted Cruz 23% | Marco Rubio 12% | Ben Carson 7%, Rand Paul 6%, Chris Christie 4%, Jeb Bush 4%, John Kasich 2%, Mike Huckabee 2%, Rick Santorum 2%, Carly Fiorina 1%, Other 1%, Don't Know 2% |
| CBS/YouGov Margin of error: ± 5.9% Sample size: 492 | January 18–21, 2016 | Donald Trump 39% | Ted Cruz 34% | Marco Rubio 13% | Ben Carson 5%, Rand Paul 3%, Chris Christie 2%, Jeb Bush 1%, John Kasich 1%, Carly Fiorina 1%, Mike Huckabee 0%, Jim Gilmore 0%, No Preference 0% |
| Emerson College Margin of error: ± 5.9% Sample size: 271 | January 18–20, 2016 | Donald Trump 33.1% | Ted Cruz 22.8% | Marco Rubio 14.2% | Ben Carson 9.1%, Chris Christie 5.4%, Jeb Bush 5.1%, John Kasich 2.9%, Rand Paul 2.7%, Carly Fiorina 2.1%, Mike Huckabee 1.7%, Undecided 1% |
| CNN/ORC Margin of error: ± 6.0% Sample size: 266 | January 15–20, 2016 | Donald Trump 37% | Ted Cruz 26% | Marco Rubio 14% | Ben Carson 6%, Jeb Bush 3%, Mike Huckabee 3%, Rand Paul 2%, Carly Fiorina 1%, Rick Santorum 1%, Chris Christie 1%, John Kasich 1% |
| Monmouth College/KBUR/Douglas Fulmer & Associates Margin of error: ± 3.7% Sample size: 687 | January 18–19, 2016 | Ted Cruz 27% | Donald Trump 25% | Ben Carson 11% | Marco Rubio 9%, Jeb Bush 7%, Chris Christie 4%, Mike Huckabee 4%, Rand Paul 3%, John Kasich 3%, Carly Fiorina 3%, Rick Santorum 1%, Jim Gilmore 1%, Undecided 4% |
| Loras College Margin of error: ± 4.4% Sample size: 500 | January 13–18, 2016 | Donald Trump 26% | Ted Cruz 25% | Marco Rubio 13% | Ben Carson 8%, Jeb Bush 6%, John Kasich 4%, Chris Christie 3%, Mike Huckabee 3%, Rand Paul 3%, Carly Fiorina 2%, Rick Santorum 1%, Undecide 7% |
| Public Policy Polling Margin of error: ± 4.3% Sample size: 530 | January 8–10, 2016 | Donald Trump 28% | Ted Cruz 26% | Marco Rubio 13% | Ben Carson 8%, Jeb Bush 6%, Chris Christie 3%, Carly Fiorina 3%, Mike Huckabee 3%, John Kasich 3%, Rand Paul 3%, Rick Santorum 2%, Jim Gilmore 0%, Undecided 2% |
| DM Register/Bloomberg Margin of error: ± 4.4% Sample size: 500 | January 7–10, 2016 | Ted Cruz 25% | Donald Trump 22% | Marco Rubio 12% | Ben Carson 11%, Rand Paul 5%, Jeb Bush 4%, Chris Christie 3%, Mike Huckabee 3%, Carly Fiorina 2%, John Kasich 2%, Rick Santorum 1% |
| ARG Margin of error: ± 4.0% Sample size: 600 | January 6–10, 2016 | Donald Trump 29% | Ted Cruz 25% | Marco Rubio 10% | Ben Carson 8%, Chris Christie 6%, Rand Paul 4%, Jeb Bush 3%, John Kasich 3%, Mike Huckabee 2%, Rick Santorum 2%, Carly Fiorina 1%, Other 1%, Undecided 5% |
| Quinnipiac University Margin of error: ± 4.0% Sample size: 602 | January 5–10, 2016 | Donald Trump 31% | Ted Cruz 29% | Marco Rubio 15% | Ben Carson 7%, Chris Christie 4%, Jeb Bush 3%, Mike Huckabee 3%, Rand Paul 2%, John Kasich 2%, Carly Fiorina 1%, Rick Santorum 1%, Not decided 5% |
| Fox News Margin of error: ± 4.0% Sample size: 504 | January 4–7, 2016 | Ted Cruz 27% | Donald Trump 23% | Marco Rubio 15% | Ben Carson 9%, Jeb Bush 7%, Rand Paul 5%, Chris Christie 4%, Mike Huckabee 2%, Carly Fiorina 1%, John Kasich 1%, Rick Santorum 1%, Other 1%, Undecided 2% |
| NBC/WSJ/Marist Margin of error: ± 4.6% Sample size: 456 | January 2–7, 2016 | Ted Cruz 28% | Donald Trump 24% | Marco Rubio 13% | Ben Carson 11%, Rand Paul 5%, Jeb Bush 4%, Chris Christie 3%, Carly Fiorina 3%, Mike Huckabee 2%, John Kasich 2%, Other 1%, Undecided 3% |
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Gravis Marketing Margin of error: ± 5.0% Sample size: 440 | December 18–21, 2015 | Donald Trump 31% | Ted Cruz 31% | Marco Rubio 9% | Ben Carson 7%, Jeb Bush 4%, Mike Huckabee 4%, Carly Fiorina 3%, Chris Christie 2%, John Kasich 2%, George Pataki 1%, Lindsey Graham 1%, Rand Paul 1%, Rick Santorum 0%, Unsure 5% |
| CBS News/YouGov Margin of error: ± 5.3% Sample size: 1252 | December 14–17, 2015 | Ted Cruz 40% | Donald Trump 31% | Marco Rubio 12% | Ben Carson 6%, Jeb Bush 2%, Rand Paul 2%, Carly Fiorina 2%, Mike Huckabee 2%, Chris Christie 1%, John Kasich 1%, Rick Santorum 1%, Lindsey Graham 0%, Jim Gilmore 0%, George Pataki 0%, No preference 0% |
| Public Policy Polling Margin of error: ± 4.3% Sample size: 522 | December 10–13, 2015 | Donald Trump 28% | Ted Cruz 25% | Marco Rubio 14% | Ben Carson 10%, Jeb Bush 7%, Carly Fiorina 3%, Chris Christie 3%, Mike Huckabee 3%, Rand Paul 2%, John Kasich 2%, Rick Santorum 1%, Lindsey Graham 1%, Jim Gilmore 0%, George Pataki 0%, Undecided 1% |
| Quinnipiac University Margin of error: ± 3.3% Sample size: 874 | December 4–13, 2015 | Donald Trump 28% | Ted Cruz 27% | Marco Rubio 14% | Ben Carson 10%, Jeb Bush 5%, Rand Paul 4%, Carly Fiorina 3%, Chris Christie 3%, Mike Huckabee 1%, John Kasich 1%, Rick Santorum 0%, George Pataki 0%, Jim Gilmore 0%, Lindsey Graham 0%, DK 3% |
| Loras College Margin of error: ± 4.4% Sample size: 499 | December 7–10, 2015 | Ted Cruz 29.7% | Donald Trump 23.4% | Ben Carson 10.8% | Marco Rubio 10.6%, Jeb Bush 6.2%, Carly Fiorina 3.4%, Rand Paul 2.4%, Mike Huckabee 1.8%, John Kasich 1.0%, Rick Santorum 1.0%, Chris Christie 0.4%, Lindsey Graham 0.0%, Undecided 9.0% |
| Fox News Margin of error: ± 4.5% Sample size: 450 | December 7–10, 2015 | Ted Cruz 28% | Donald Trump 26% | Marco Rubio 13% | Ben Carson 10%, Jeb Bush 5%, Rand Paul 5%, Chris Christie 2%, Carly Fiorina 2%, Mike Huckabee 1%, John Kasich 1%, Rick Santorum 1%, George Pataki 1%, Jim Gilmore 0%, Lindsey Graham 0%, Uncommitted 1%, Other 1%, DK 3% |
| DMR/Bloomberg Margin of error: ± 4.9% Sample size: 400 | December 7–10, 2015 | Ted Cruz 31% | Donald Trump 21% | Ben Carson 13% | Marco Rubio 10%, Jeb Bush 6%, Chris Christie 3%, Mike Huckabee 3%, Rand Paul 3%, John Kasich 2%, Carly Fiorina 1%, Rick Santorum 1%, Jim Gilmore 0%, Lindsey Graham 0%, George Pataki 0%, Uncommitted 3%, Undecided 4% |
| Monmouth University Margin of error: ± 4.8% Sample size: 425 | December 3–6, 2015 | Ted Cruz 24% | Donald Trump 19% | Marco Rubio 17% | Ben Carson 13%, Jeb Bush 6%, Rand Paul 4%, Carly Fiorina 3%, John Kasich 3%, Chris Christie 2%, Mike Huckabee 2%, Rick Santorum 1%, Lindsey Graham <1%, George Pataki 0%, Jim Gilmore 0%, Uncommitted 1%, Undecided 4% |
| CNN/ORC Margin of error: ± 4.5% Sample size: 552 | November 28- December 6, 2015 | Donald Trump 33% | Ted Cruz 20% | Ben Carson 16% | Marco Rubio 11%, Jeb Bush 4%, Carly Fiorina 3%, Rand Paul 3%, Chris Christie 2%, Mike Huckabee 2%, John Kasich 1%, Rick Santorum 1%, Lindsey Graham 0%, George Pataki 0%, Jim Gilmore 0%, No one 1%, Someone else 1%, No opinion 1% |
| Quinnipiac University Margin of error: ± 4.0% Sample size: 600 | November 16–22, 2015 | Donald Trump 25% | Ted Cruz 23% | Ben Carson 18% | Marco Rubio 13%, Rand Paul 5%, Jeb Bush 4%, Carly Fiorina 3%, Chris Christie 2%, Rick Santorum 2%, Mike Huckabee 2%, John Kasich 1%, George Pataki 0%, Lindsey Graham 0%, Jim Gilmore 0%, DK/NA 2% |
| CBS News/YouGov Margin of error: ± 6.2% Sample size: ? | November 15–19, 2015 | Donald Trump 30% | Ted Cruz 21% | Ben Carson 19% | Marco Rubio 11%, Jeb Bush 5%, Carly Fiorina 4%, Chris Christie 2%, Rand Paul 2%, Rick Santorum 2%, Bobby Jindal 2%, John Kasich 1%, Mike Huckabee 1%, George Pataki 0%, Lindsey Graham 0%, Jim Gilmore 0% |
| Iowa State University/WHO-HD Margin of error: ± ? Sample size: 518 | November 2–15, 2015 | Ben Carson 27% | Marco Rubio 17% | Donald Trump 15% | Ted Cruz 9%, Jeb Bush 5%, Rand Paul 3%, Carly Fiorina 2%, Mike Huckabee 1%, John Kasich 1%, Chris Christie 0%, Rick Santorum 0%, Lindsey Graham 0% |
| CNN/ORC Margin of error: ± 4.0% Sample size: 548 | October 29 – November 4, 2015 | Donald Trump 25% | Ben Carson 23% | Marco Rubio 13% | Ted Cruz 11%, Jeb Bush 5%, Carly Fiorina 4%, Bobby Jindal 4%, Chris Christie 3%, Lindsey Graham 2%, John Kasich 2%, Rand Paul 2%, Mike Huckabee 2%, Rick Santorum 0%, George Pataki 0%, Jim Gilmore 0%, No opinion 3% |
| Gravis Marketing/One America News Network Margin of error: ± 5.0% Sample size: 356 | October 30 – November 2, 2015 | Donald Trump 29.4% | Ben Carson 22.4% | Marco Rubio 18.0% | Ted Cruz 8.5%, Jeb Bush 6.0%, Carly Fiorina 5.2%, John Kasich 3.1%, Chris Christie 2.4%, Rand Paul 1.8%, Bobby Jindal 1.5%, Mike Huckabee 1.1%, Rick Santorum 0.4%, Lindsey Graham 0.3% |
| Public Policy Polling Margin of error: ± 3.9% Sample size: 638 | October 30 – November 1, 2015 | Donald Trump 22% | Ben Carson 21% | Ted Cruz 14% | Marco Rubio 10%, Bobby Jindal 6%, Mike Huckabee 6%, Jeb Bush 5%, Carly Fiorina 5%, Chris Christie 3%, Rick Santorum 2%, John Kasich 2%, Rand Paul 2%, Lindsey Graham 0%, George Pataki 0%, Jim Gilmore 0%, Undecided 1% |
| KBUR/Monmouth University Margin of error: ± 3.37% Sample size: 874 | October 29–31, 2015 | Ben Carson 27.5% | Donald Trump 20.4% | Ted Cruz 15.1% | Marco Rubio 10.1%, Jeb Bush 9.0%, Carly Fiorina 4.1%, Lindsey Graham 0.2%, Mike Huckabee 1.7%, John Kasich 1.9%, Rand Paul 1.6%, Chris Christie 2.3%, Bobby Jindal 1.3%, Rick Santorum 0.7%, Jim Gilmore 0.3%, George Pataki 0%, Undecided 3.8% |
| Monmouth University Margin of error: ± 4.9% Sample size: 400 | October 22–25, 2015 | Ben Carson 32% | Donald Trump 18% | Ted Cruz 10% | Marco Rubio 10%, Jeb Bush 8%, Carly Fiorina 5%, Rand Paul 3%, Bobby Jindal 2%, Mike Huckabee 2%, John Kasich 2%, Rick Santorum 1%, Chris Christie 1%, Lindsey Graham 0%, George Pataki 0%, Jim Gilmore 0%, Other 0%, Uncommitted 1%, Undecided 5% |
| Loras College Margin of error: ± 4.4% Sample size: 500 | October 19–22, 2015 | Ben Carson 30.6% | Donald Trump 18.6% | Marco Rubio 10.0% | Jeb Bush 6.8%, Ted Cruz 6.2%, Bobby Jindal 4.6%, Carly Fiorina 2.4%, Chris Christie 1.8%, Rand Paul 1.8%, John Kasich 1.4%, Mike Huckabee 1.2%, Rick Santorum 0.8%, Lindsey Graham 0.4%, George Pataki 0%, Undecided 12.8% |
| CBS News/YouGov Margin of error: ± 6.5% Sample size: ? | October 15–22, 2015 | Donald Trump 27% | Ben Carson 27% | Ted Cruz 12% | Marco Rubio 9%, Jeb Bush 6%, Carly Fiorina 3%, Rand Paul 3%, Mike Huckabee 2%, John Kasich 2%, Bobby Jindal 2%, Rick Santorum 2%, Chris Christie 1%, Lindsey Graham 0%, George Pataki 0%, Jim Gilmore 0%, No preference 3% |
| DMR/Bloomberg Margin of error: ± 4.9% Sample size: 401 | October 16–21, 2015 | Ben Carson 28% | Donald Trump 19% | Ted Cruz 10% | Marco Rubio 9%, Rand Paul 5%, Jeb Bush 5%, Carly Fiorina 4%, Mike Huckabee 3%, John Kasich 2%, Bobby Jindal 2%, Rick Santorum 2%, Chris Christie 1%, Lindsey Graham 0%, George Pataki 0%, Jim Gilmore 0%, Not sure 7%, Uncommitted 3% |
| Quinnipiac University Margin of error: ± 4.1% Sample size: 574 | October 14–20, 2015 | Ben Carson 28% | Donald Trump 20% | Marco Rubio 13% | Ted Cruz 10%, Rand Paul 6%, Carly Fiorina 5%, Jeb Bush 5%, John Kasich 3%, Bobby Jindal 3%, Mike Huckabee 2%, Chris Christie 1%, Rick Santorum 1%, Lindsey Graham 0%, George Pataki 0%, Jim Gilmore 0%, Undecided 3% |
| NBC/WSJ Margin of error: ± 4.7% Sample size: 431 | October 2015 | Donald Trump 24% | Ben Carson 19% | Carly Fiorina 8% | Jeb Bush 7%, Ted Cruz 6%, Marco Rubio 6%, Bobby Jindal 6%, Mike Huckabee 5%, Rand Paul 4%, Chris Christie 4%, John Kasich 3%, Rick Santorum 1%, Lindsey Graham 1%, George Pataki <1%, Jim Gilmore <1%, Undecided 7% |
| Gravis Marketing Margin of error: ± 4.6% Sample size: 454 | October 2, 2015 | Donald Trump 18.8% | Ben Carson 14.1% | Ted Cruz 10.6% | Carly Fiorina 9.7%, Marco Rubio 8.9%, Jeb Bush 6.9%, John Kasich 2.6%, Rand Paul 2.4%, Mike Huckabee 1.8%, Lindsey Graham 1.8%, Bobby Jindal 1.7%, Chris Christie 1.4%, Rick Santorum 1.3%, George Pataki 0.3%, Unsure 17.9% |
| Public Policy Polling Margin of error: ± 4.4% Sample size: 488 | September 18–20, 2015 | Donald Trump 24% | Ben Carson 17% | Carly Fiorina 13% | Ted Cruz 8%, Marco Rubio 8%, Mike Huckabee 6%, Jeb Bush 6%, Scott Walker 5%, Rand Paul 4%, Bobby Jindal 4%, John Kasich 2%, Chris Christie 1%, Rick Santorum 1%, George Pataki 0%, Jim Gilmore 0%, Lindsey Graham 0%, Undecided 3% |
| CBS News/YouGov Margin of error: ± 5.7% Sample size: 705 | September 3–10, 2015 | Donald Trump 29% | Ben Carson 25% | Ted Cruz 10% | Marco Rubio 6%, Scott Walker 5%, Carly Fiorina 4%, Mike Huckabee 4%, Rick Santorum 3%, Jeb Bush 3%, Bobby Jindal 2%, John Kasich 2%, Rand Paul 2%, Chris Christie 1%, Jim Gilmore 1%, Lindsey Graham 0%, George Pataki 0%, Rick Perry 0%, No preference 4% |
| Quinnipiac University Margin of error: ± 3.0% Sample size: 1038 | August 27 – September 8, 2015 | Donald Trump 27% | Ben Carson 21% | Ted Cruz 9% | Jeb Bush 6%, Carly Fiorina 5%, Marco Rubio 5%, John Kasich 5%, Rand Paul 4%, Mike Huckabee 4%, Scott Walker 3%, Bobby Jindal 2%, Chris Christie 1%, Rick Santorum 1%, Rick Perry 1%, Lindsey Graham 1%, George Pataki 0%, Jim Gilmore 0%, Undecided 4% |
| NBC News/Marist Margin of error: ± 5.0% Sample size: 390 | August 26 – September 2, 2015 | Donald Trump 29% | Ben Carson 22% | Jeb Bush 6% | Carly Fiorina 5%, Rand Paul 5%, Scott Walker 5%, Ted Cruz 4%, Marco Rubio 4%, Bobby Jindal 4%, Mike Huckabee 3%, Chris Christie 2%, John Kasich 2%, Rick Santorum 1%, Rick Perry 0%, Lindsey Graham 0%, George Pataki 0%, Jim Gilmore 0%, Undecided 8% |
| Gravis Marketing/One America Margin of error: ± 4.4% Sample size: 507 | August 29–31, 2015 | Donald Trump 31.7% | Ben Carson 15.8% | Ted Cruz 6.9% | Marco Rubio 5.8%, Scott Walker 5.6%, Bobby Jindal 5.2%, Carly Fiorina 4.6%, Jeb Bush 4.1%, Mike Huckabee 2.6%, Chris Christie 2.0%, John Kasich 1.4%, Rand Paul 1.3%, Rick Perry 0.9%, Rick Santorum 0.6%, Lindsey Graham 0.4%, George Pataki 0.1%, Undecided 10.9% |
| Monmouth University Margin of error: ± 4.9% Sample size: 405 | August 27–30, 2015 | Donald Trump 23% | Ben Carson 23% | Carly Fiorina 10% | Ted Cruz 9%, Scott Walker 7%, Jeb Bush 5%, John Kasich 4%, Marco Rubio 4%, Rand Paul 3%, Rick Santorum 2%, Bobby Jindal 1%, Chris Christie 1%, Rick Perry 1%, George Pataki 0%, Jim Gilmore 0%, Lindsey Graham 0%, Someone else 0%, Undecided 5% |
| Des Moines Register/Bloomberg/Selzer Margin of error: ± 4.9% Sample size: 400 | August 23–26, 2015 | Donald Trump 23% | Ben Carson 18% | Ted Cruz 8% | Scott Walker 8%, Jeb Bush 6%, Marco Rubio 6%, Carly Fiorina 5%, Mike Huckabee 4%, Rand Paul 4%, Chris Christie 2%, Bobby Jindal 2%, John Kasich 2%, Rick Perry 1%, Rick Santorum 1%, George Pataki 0%, Jim Gilmore 0%, Lindsey Graham 0%, Someone else 0%, Undecided 10% |
| CNN/ORC Margin of error: ± 2% Sample size: 2,014 | August 7–11, 2015 | Donald Trump 22% | Ben Carson 14% | Scott Walker 9% | Ted Cruz 8%, Carly Fiorina 7%, Mike Huckabee 7%, Jeb Bush 5%, Rand Paul 5%, Marco Rubio 5%, Chris Christie 3%, Lindsey Graham 2%, Bobby Jindal 2%, John Kasich 2%, Rick Perry 1%, Rick Santorum 1%, George Pataki 0%, Jim Gilmore 0%, Someone else 0%, No one 2%, No opinion 4% |
| NBC/Marist Margin of error: ± 5.3% Sample size: 342 | July 14–21, 2015 | Scott Walker 19% | Donald Trump 17% | Jeb Bush 12% | Ben Carson 8%, Mike Huckabee 7%, Rand Paul 5%, Ted Cruz 4%, Marco Rubio 4%, Rick Perry 3%, Chris Christie 2%, John Kasich 2%, Bobby Jindal 1%, Carly Fiorina 1%, Lindsey Graham 1%, Rick Santorum 0%, George Pataki 0%, Jim Gilmore 0%, Undecided 14% |
| Quinnipiac University Margin of error: ± 3.8% Sample size: 666 | June 20–29, 2015 | Scott Walker 18% | Ben Carson 10% | Donald Trump 10% | Ted Cruz 9%, Rand Paul 9%, Jeb Bush 8%, Marco Rubio 7%, Mike Huckabee 5%, Rick Perry 4%, Rick Santorum 4%, Carly Fiorina 3%, Bobby Jindal 3%, John Kasich 2%, Chris Christie 1%, Lindsey Graham 1%, George Pataki 0%, DK/NA 5% |
| Morning Consult Margin of error: ± ?% Sample size: 265 | May 31 – June 8, 2015 | Scott Walker 18% | Jeb Bush 10% | Mike Huckabee 10% | Rand Paul 10%, Marco Rubio 7%, Chris Christie 6%, Ben Carson 5%, Donald Trump 5%, Ted Cruz 4%, Carly Fiorina 2%, Don't know/No opinion/Refused 21%, Someone else 3% |
| Gravis Marketing Margin of error: ± 5% Sample size: 364 | May 28–29, 2015 | Scott Walker 17% | Marco Rubio 13% | Ben Carson 12% | Jeb Bush 10%, Mike Huckabee 8%, Ted Cruz 6%, Rick Santorum 6%, Carly Fiorina 5%, Chris Christie 4%, Rand Paul 4%, Unsure 15% |
| Des Moines Register Margin of error: ± 4.9% Sample size: 402 | May 25–29, 2015 | Scott Walker 17% | Ben Carson 10% | Rand Paul 10% | Jeb Bush 9%, Mike Huckabee 9%, Marco Rubio 6%, Rick Santorum 6%, Ted Cruz 5%, Chris Christie 4%, Donald Trump 4%, Rick Perry 3%, Carly Fiorina 2%, John Kasich 2%, Lindsey Graham 1%, Bobby Jindal 1%, Uncommitted 4%, Not sure 7% |
| Quinnipiac University Margin of error: ± 3.8% Sample size: 667 | April 25 – May 4, 2015 | Scott Walker 21% | Rand Paul 13% | Marco Rubio 13% | Ted Cruz 12%, Mike Huckabee 11%, Ben Carson 7%, Jeb Bush 5%, Chris Christie 3%, Rick Perry 3%, Carly Fiorina 2%, John Kasich 2%, Rick Santorum 2%, Bobby Jindal 1%, Lindsey Graham 0%, Don't know/No answer 6% |
| Public Policy Polling Margin of error: ± 4.6% Sample size: 462 | April 23–26, 2015 | Scott Walker 23% | Marco Rubio 13% | Jeb Bush 12% | Mike Huckabee 10%, Rand Paul 10%, Ted Cruz 8%, Ben Carson 7%, Chris Christie 5%, Rick Perry 4%, Undecided 8% |
| Loras College Margin of error: ± 4.3% Sample size: 509 | April 21–23, 2015 | Scott Walker 12.6% | Marco Rubio 10% | Jeb Bush 9.6% | Mike Huckabee 8.6%, Ted Cruz 6.5%, Ben Carson 6.3%, Rand Paul 6.3%, Chris Christie 5.1%, Rick Santorum 3.5%, Donald Trump 3.1%, Rick Perry 2.6%, Carly Fiorina 1%, Bobby Jindal 1%, John Kasich 1%, Lindsey Graham 0%, Undecided 22.8% |
| Gravis Marketing Margin of error: ± 5% Sample size: 388 | April 13, 2015 | Jeb Bush 16% | Scott Walker 13% | Marco Rubio 12% | Ben Carson 9%, Rand Paul 9%, Mike Huckabee 8%, Ted Cruz 6%, Chris Christie 5%, Carly Fiorina 3%, Rick Santorum 2%, Undecided 17% |
| Opinion Savvy Margin of error: ± 4.16% Sample size: 552 | March 20, 2015 | Scott Walker 29% | Ben Carson 14% | Jeb Bush 12% | Mike Huckabee 11%, Ted Cruz 7%, Chris Christie 5%, Rand Paul 5%, Marco Rubio 5%, Donald Trump 3%, Other/Undecided 10% |
| Quinnipiac University Margin of error: ± 3.9% Sample size: 623 | February 16–23, 2015 | Scott Walker 25% | Rand Paul 13% | Ben Carson 11% | Mike Huckabee 11%, Jeb Bush 10%, Ted Cruz 5%, Marco Rubio 4%, Chris Christie 4%, Rick Santorum 4%, Rick Perry 3%, Bobby Jindal 2%, John Kasich 0%, Unsure 9% |
| Gravis Marketing Margin of error: ± 4% Sample size: 343 | February 12–13, 2015 | Scott Walker 24% | Jeb Bush 10% | Rand Paul 10% | Chris Christie 9%, Mike Huckabee 7%, Marco Rubio 7%, Rick Santorum 6%, Ben Carson 5%, Ted Cruz 4%, Carly Fiorina 3%, Unsure 15% |
| NBC News/Marist Margin of error: ± 5.5% Sample size: 320 | February 3–10, 2015 | Mike Huckabee 17% | Jeb Bush 16% | Scott Walker 15% | Chris Christie 9%, Rand Paul 7%, Ben Carson 6%, Marco Rubio 6%, Rick Santorum 5%, Rick Perry 4%, Ted Cruz 2%, Lindsey Graham 1%, Undecided 14% |
| Selzer & Co. Margin of error: ± 4.9% Sample size: 402 | January 26–29, 2015 | Scott Walker 15% | Rand Paul 14% | Mitt Romney 13% | Mike Huckabee 10%, Ben Carson 9%, Jeb Bush 8%, Ted Cruz 5%, Chris Christie 4%, Rick Santorum 4%, Marco Rubio 3%, Rick Perry 3%, Bobby Jindal 2%, Carly Fiorina 1%, John Kasich 1%, Donald Trump 1%, Mike Pence 0%, Uncommitted 2%, Not sure 5% |
| Selzer & Co. Margin of error: ± 4.9% Sample size: 402 | January 26–29, 2015 | Scott Walker 16% | Rand Paul 15% | Mike Huckabee 13% | Ben Carson 10%, Jeb Bush 9%, Chris Christie 6%, Ted Cruz 6%, Rick Santorum 5%, Marco Rubio 4%, Rick Perry 3%, Bobby Jindal 2%, Carly Fiorina 1%, John Kasich 1%, Donald Trump 1%, Mike Pence 0%, Uncommitted 3%, Not sure 5% |
| Loras College Margin of error: ± 5.5% Sample size: 316 | January 21–26, 2015 | Mitt Romney 13.7% | Mike Huckabee 12.5% | Ben Carson 10.5% | Jeb Bush 9.9%, Scott Walker 8.3%, Rand Paul 6.7%, Ted Cruz 5.1%, Marco Rubio 4.2%, Chris Christie 3.8%, Rick Santorum 3.8%, Rick Perry 2.9%, Bobby Jindal 1.6%, Carly Fiorina 1%, John Kasich 1%, Lindsey Graham 0.3% Undecided 14.7% |
| Loras College Margin of error: ± 5.5% Sample size: 316 | January 21–26, 2015 | Mike Huckabee 14.4% | Jeb Bush 13.1% | Ben Carson 12.8% | Scott Walker 9.9%, Rand Paul 7%, Chris Christie 5.4%, Ted Cruz 5.4%, Marco Rubio 4.2%, Rick Santorum 3.8%, Rick Perry 3.2%, Bobby Jindal 1.6%, Carly Fiorina 1.3%, John Kasich 1.3%, Lindsey Graham 0.6% Undecided 16% |
| Gravis Marketing Margin of error: ± 3% Sample size: 404 | January 5–7, 2015 | Mitt Romney 21% | Jeb Bush 14% | Scott Walker 10% | Mike Huckabee 9%, Rand Paul 8%, Ted Cruz 7%, Chris Christie 5%, Paul Ryan 5%, Marco Rubio 4%, Undecided 18% |
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Fox News Margin of error: ± 5% Sample size: 329 | October 28–30, 2014 | Mike Huckabee 13% | Ben Carson 12% | Paul Ryan 9% | Jeb Bush 8%, Rand Paul 8%, Chris Christie 7%, Ted Cruz 7%, Rick Santorum 6%, Marco Rubio 5%, Scott Walker 5%, Rick Perry 3%, Bobby Jindal 1%, John Kasich 1%, Rob Portman 0%, Other 1%, None of the above 4%, Don't know 10% |
| Reuters/Ipsos Margin of error: ± 4.0% Sample size: 602 | October 23–29, 2014 | Mitt Romney 17% | Paul Ryan 13% | Chris Christie 12% | Jeb Bush 10%, Scott Walker 10%, Rand Paul 8%, Ted Cruz 7%, Marco Rubio 6%, Rick Santorum 6%, Rick Perry 5%, Wouldn't vote 7% |
| Selzer & Co. Margin of error: ± 4.8% Sample size: 425 | October 1–7, 2014 | Mitt Romney 17% | Ben Carson 11% | Rand Paul 10% | Mike Huckabee 9%, Paul Ryan 8%, Ted Cruz 7%, Rick Perry 7%, Chris Christie 6%, Jeb Bush 4%, Scott Walker 4%, Rick Santorum 3%, Marco Rubio 2%, Bobby Jindal 1%, John Kasich 1%, Mike Pence 0%, Rob Portman 0%, Uncommitted 1%, Not sure 9% |
| CNN/ORC Margin of error: ± 5.5% Sample size: 310 | September 8–10, 2014 | Mike Huckabee 21% | Paul Ryan 12% | Rand Paul 7% | Jeb Bush 6%, Chris Christie 6%, Rick Perry 5%, Marco Rubio 5%, Scott Walker 5%, Ted Cruz 4%, Bobby Jindal 4%, Rick Santorum 3% |
| Suffolk University Margin of error: ± 6.83% Sample size: 206 | August 23–26, 2014 | Mike Huckabee 13.11% | Chris Christie 10.68% | Rick Perry 8.74% | Jeb Bush 7.28%, Rand Paul 6.8%, Paul Ryan 6.31%, Rick Santorum 5.83%, Marco Rubio 5.34%, Ted Cruz 4.85%, Scott Walker 4.37%, Bobby Jindal 2.91%, Jon Huntsman Jr. 0.97%, John Kasich 0.97%, Other 4.37%, Undecided 16.99%, Refused 0.49% |
| Suffolk University Margin of error: ± 6.83% Sample size: 206 | August 23–26, 2014 | Mitt Romney 35.29% | Mike Huckabee 8.82% | Chris Christie 6.47% | Rick Santorum 5.88%, Ted Cruz 5.29%, Rand Paul 5.29%, Jeb Bush 4.71, Rick Perry 4.71%, Paul Ryan 4.12%, Scott Walker 3.53%, Marco Rubio 2.35%, Bobby Jindal 1.76%, Jon Huntsman Jr. 1.18%, John Kasich 0.59%, Undecided 10% |
| NBC News/Marist Margin of error: ± 4.1% Sample size: 558 | July 7–13, 2014 | Jeb Bush 12% | Rand Paul 12% | Paul Ryan 11% | Rick Santorum 9%, Chris Christie 8%, Ted Cruz 7%, Rick Perry 7%, Marco Rubio 7%, Scott Walker 5%, Bobby Jindal 1%, Undecided 20% |
| Vox Populi Polling Margin of error: ± 6.6% Sample size: 222 | June 4–5, 2014 | Jeb Bush 18% | Mike Huckabee 15% | Paul Ryan 13% | Rand Paul 12%, Marco Rubio 11%, Rick Santorum 10%, Ted Cruz 9%, Chris Christie 6%, Scott Walker 6% |
| Public Policy Polling Margin of error: ± 5.6% Sample size: 303 | May 15–19, 2014 | Mike Huckabee 20% | Ted Cruz 15% | Jeb Bush 12% | Rand Paul 10%, Chris Christie 9%, Paul Ryan 8%, Scott Walker 6%, Marco Rubio 4%, Rick Santorum 3%, Someone else/Not sure 13% |
| The Daily Caller/Vox Populi Polling Margin of error: ± 8.4% Sample size: 168 | April 22–24, 2014 | Mike Huckabee 20% | Paul Ryan 19% | Jeb Bush 18% | Ted Cruz 9%, Marco Rubio 9%, Rand Paul 8%, Chris Christie 7%, Scott Walker 6%, Joe Scarborough 4% |
| Magellan Strategies Margin of error: ± 5% Sample size: 330 | April 14–15, 2014 | Jeb Bush 17% | Mike Huckabee 17% | Chris Christie 14% | Rand Paul 11%, Ted Cruz 10%, Scott Walker 8%, John Kasich 5%, Marco Rubio 2%, Undecided 16% |
| Loras College Margin of error: ± 4% Sample size: 600 | April 7–8, 2014 | Mike Huckabee 14.7% | Jeb Bush 10.7% | Rand Paul 8.5% | Paul Ryan 8.3%, Chris Christie 8%, Ted Cruz 6.2%, Marco Rubio 4.7%, Rick Santorum 4.7%, Scott Walker 4.7%, Rick Perry 3%, John Kasich 0.7%, Other 0.7%, Undecided 23.8% |
| Suffolk University Margin of error: ± 8.7% Sample size: 127 | April 3–8, 2014 | Mike Huckabee 11.02% | Jeb Bush 10.24% | Rand Paul 10.24% | Ted Cruz 9.45%, Ben Carson 8.66%, Chris Christie 7.09%, Paul Ryan 6.3%, Sarah Palin 5.51%, Condoleezza Rice 5.51%, Marco Rubio 5.51%, Rick Santorum 5.51%, Scott Walker 5.51%, Bobby Jindal 3.15%, Rick Perry 3.15%, Undecided 3.15% |
| WPA Research Margin of error: ± ? Sample size: 402 | March 30, 2014 | Mike Huckabee 14% | Rand Paul 10% | Scott Walker 8% | Jeb Bush 7%, Ted Cruz 7%, Paul Ryan 7%, Chris Christie 6%, Rick Santorum 5%, Rick Perry 3%, Marco Rubio 3%, Bobby Jindal 2%, Other 2%, Undecided 26% |
| Public Policy Polling Margin of error: ± 5.8% Sample size: 283 | February 20–23, 2014 | Mike Huckabee 17% | Rand Paul 14% | Jeb Bush 13% | Chris Christie 10%, Ted Cruz 10%, Paul Ryan 9%, Bobby Jindal 7%, Scott Walker 7%, Marco Rubio 3%, Other/Undecided 11% |
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Cygnal Margin of error: ± 2.37% Sample size: 1,705 | July 10–12, 2013 | Marco Rubio 11.4% | Rand Paul 10.5% | Paul Ryan 9.3% | Jeb Bush 8.7%, Chris Christie 7.7%, Rick Santorum 6.7%, Ted Cruz 6.1%, Scott Walker 2.1%, Bobby Jindal 1.3%, Undecided 36.3% |
| Public Policy Polling Margin of error: ± 6.2% Sample size: 250 | July 5–7, 2013 | Rand Paul 18% | Chris Christie 16% | Paul Ryan 15% | Jeb Bush 14%, Marco Rubio 11%, Ted Cruz 10%, Rick Santorum 6%, Bobby Jindal 2%, Susana Martinez 1%, Other/Undecided 7% |
| Public Policy Polling Margin of error: ± 5.4% Sample size: 326 | Feb. 1–3, 2013 | Mike Huckabee 16% | Marco Rubio 16% | Rand Paul 15% | Jeb Bush 14%, Chris Christie 12%, Paul Ryan 10%, Susana Martinez 4%, Bobby Jindal 3%, Rick Perry 3%, Someone Else/Undecided 7% |
| Public Policy Polling Margin of error: 5.1% Sample size: 363 | July 12–15, 2012 | Rick Santorum 17% | Mike Huckabee 17% | Chris Christie 16% | Rand Paul 11%, Marco Rubio 10%, Jeb Bush 8%, Paul Ryan 6%, Sarah Palin 4%, Scott Walker 4%, Someone else/Not sure 8% |
| Public Policy Polling Margin of error: 5.3% Sample size: 346 | May 3–5, 2012 | Rick Santorum 16% | Mike Huckabee 16% | Chris Christie 15% | Jeb Bush 10%, Sarah Palin 10%, Rand Paul 9%, Marco Rubio 7%, Paul Ryan 5% Someone else/Not sure 10% |

## Kansas

Winner: Ted Cruz Caucus date: March 5, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Caucus results | March 5, 2016 | Ted Cruz 47.50% | Donald Trump 23.35% | Marco Rubio 16.83% | John Kasich 11.07%, Ben Carson 0.74%, Jeb Bush 0.11%, Carly Fiorina 0.05% |
| Trafalgar Group Margin of error: ± 2.96% Sample size: 1,060 | March 2–3, 2016 | Donald Trump 35.18% | Ted Cruz 29.31% | Marco Rubio 16.56% | John Kasich 12.66%, Undecided 6.29% |
| Fort Hays State University Margin of error: ± 5.0% Sample size: 440 | February 26, 2016 | Donald Trump 26% | Ted Cruz 14% | Marco Rubio 13% | John Kasich 3%, Ben Carson 3%, Other 2%, Undecided 39% |
| Suffolk University Margin of error: ± ? Sample size: 118 | September 27–30, 2014 | Jeb Bush 15.36% | Mike Huckabee 14.23% | Chris Christie 8.99% | Ted Cruz 7.87%, Rick Perry 6.74%, Paul Ryan 5.99%, Rand Paul 5.62%, Marco Rubio 5.62%, Scott Walker 3.75%, Rick Santorum 1.5%, Bobby Jindal 1.12%, John Kasich 0.75%, Carly Fiorina 0.37%, Other 4.12%, Undecided/Refused 17.97% |
| Suffolk University Margin of error: ± ? Sample size: 118 | September 27–30, 2014 | Mitt Romney 33.33% | Jeb Bush 10.5% | Mike Huckabee 10.5% | Ted Cruz 6.85%, Chris Christie 6.39%, Rick Perry 5.02%, Rand Paul 4.57%, Marco Rubio 4.11%, Paul Ryan 2.74%, Scott Walker 2.28%, Rick Santorum 1.83%, Bobby Jindal 1.37%, Carly Fiorina 0.46%, John Kasich 0.46%, Undecided/Refused 9.59% |
| Public Policy Polling Margin of error: ±5.1% Sample size: 375 | February 18–20, 2014 | Mike Huckabee 20% | Jeb Bush 13% | Chris Christie 13% | Ted Cruz 12%, Rand Paul 11%, Paul Ryan 7%, Marco Rubio 5%, Scott Walker 4%, Bobby Jindal 2%, Someone Else/Undecided 13% |

## Kentucky

Winner: Donald Trump Caucus date: March 5, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Caucus results | March 5, 2016 | Donald Trump 35.92% | Ted Cruz 31.57% | Marco Rubio 16.36% | John Kasich 14.42%, Ben Carson 0.85%, Rand Paul 0.38%, Jeb Bush 0.13%, Mike Huckabee 0.08%, Carly Fiorina 0.03%, Chris Christie 0.03%, Rick Santorum 0.01% |
| Western Kentucky University Margin of error: ± 4.3% Sample size: 532 | February 22–26, 2016 | Donald Trump 35% | Marco Rubio 22% | Ted Cruz 15% | Ben Carson 7%, John Kasich 6% |
| Public Policy Polling Margin of error: ± 4.8% Sample size: 413 | June 18–21, 2015 | Rand Paul 19% | Jeb Bush 13% | Donald Trump 12% | Scott Walker 11%, Mike Huckabee 10%, Marco Rubio 10%, Ben Carson 7%, Ted Cruz 4%, Carly Fiorina 4%, Someone else/Not sure 9% |
| Courier-Journal/SurveyUSA Margin of error: ± 4.4% Sample size: 517 | May 5–10, 2015 | Rand Paul 26% | Mike Huckabee 15% | Jeb Bush 12% | Scott Walker 10%, Ben Carson 7%, Marco Rubio 6%, Ted Cruz 6%, Chris Christie 2%, Rick Perry, 2%, Rick Santorum 2%, Bobby Jindal 2%, Carly Fiorina 1%, Other 2%, Undecided 8% |
| Public Policy Polling Margin of error: ± 5% Sample size: 383 | August 7–10, 2014 | Rand Paul 25% | Mike Huckabee 18% | Jeb Bush 15% | Chris Christie 8%, Marco Rubio 8%, Ted Cruz 7%, Scott Walker 5%, Paul Ryan 4%, Bobby Jindal 3%, Someone else/Not sure 6% |
| Public Policy Polling Margin of error: ± 4.2% Sample size: 540 | December 12–15, 2013 | Rand Paul 34% | Jeb Bush 20% | Chris Christie 12% | Ted Cruz 7%, Marco Rubio 5%, Paul Ryan 5%, Bobby Jindal 3%, Rick Santorum 2%, Scott Walker 2%, Someone Else/Undecided 10% |
| Public Policy Polling Margin of error: ± 5.5% Sample size: 320 | April 5–7, 2013 | Rand Paul 31% | Marco Rubio 17% | Jeb Bush 13% | Chris Christie 10%, Bobby Jindal 4%, Paul Ryan 3%, Rick Perry 2%, Rick Santorum 2%, Susana Martinez 1%, Someone Else/Undecided 16% |

## Louisiana

Winner: Donald Trump Primary date: March 5, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Primary results | March 5, 2016 | Donald Trump 41.45% | Ted Cruz 37.83% | Marco Rubio 11.22% | John Kasich 6.43%, Ben Carson 1.51%, Jeb Bush 0.71%, Rand Paul 0.22%, Mike Huckabee 0.21%, Chris Christie 0.13%, Carly Fiorina 0.08%, Rick Santorum 0.06%, Lindsey Graham 0.05% |
| Gravis Marketing/ One America News Margin of error: ± 3% Sample size: 1356 | March 3, 2016 | Donald Trump 48% | Ted Cruz 31% | Marco Rubio 15% | John Kasich 6% |
| University of New Orleans Margin of error: ± 2.26% Sample size: 1874 | March 2, 2016 | Donald Trump 38% | Ted Cruz 26% | Marco Rubio 11% | John Kasich 5%, Don't Care 20% |
| Trafalgar Group Margin of error: ± 2.73% Sample size: 1509 | March 1–2, 2016 | Donald Trump 44.15% | Ted Cruz 25.92% | Marco Rubio 14.84% | Ben Carson 5.72%, John Kasich 5.17%, Undecided 4.2% |
| Magellan Strategies Margin of error: ± 3.9% Sample size: 609 | March 1, 2016 | Donald Trump 41% | Ted Cruz 21% | Marco Rubio 15% | John Kasich 9%, Ben Carson 5% |
| WWL-TV/Advocate Margin of error: ± 3.46% Sample size: 800 | September 20–23, 2015 | Ben Carson 23% | Donald Trump 19% | Jeb Bush 10% | Marco Rubio 9%, Carly Fiorina 7%, Ted Cruz 6%, Mike Huckabee 4%, Bobby Jindal 3%, John Kasich 3%, Chris Christie 2%, Others 1%, Undecided 13% |
| Opinion Savvy/Insider Advantage Margin of error: ± 4.4% Sample size: 490 | August 2, 2015 | Donald Trump 28.9% | Jeb Bush 16.6% | Mike Huckabee 9.8% | Ted Cruz 9.4%, Ben Carson 8.4%, Bobby Jindal 6%, Scott Walker 4.3%, Marco Rubio 3.8% John Kasich 2.6%, Chris Christie 2.4%, Rick Perry 2.1%, Carly Fiorina 1.5%, Rand Paul 1%, Lindsey Graham 0.3%, Rick Santourm 0.1%, George Pataki 0%, Someone else 0.8%, Undecided 2.1% |
| Public Policy Polling Margin of error: ± 5.6% Sample size: 308 | June 26–29, 2014 | Ted Cruz 19% | Jeb Bush 17% | Mike Huckabee 17% | Bobby Jindal 12%, Rand Paul 10%, Chris Christie 6%, Marco Rubio 4%, Paul Ryan 4%, Scott Walker 3%, Other/Undecided 8% |
| Magellan Strategies Margin of error: ± 6% Sample size: 270 | February 6–9, 2014 | Jeb Bush 25% | Mike Huckabee 17% | Ted Cruz 13% | Rand Paul 9%, Marco Rubio 9%, Chris Christie 8%, Scott Walker 4%, John Kasich 2% Undecided 13% |
| Public Policy Polling Margin of error: ± 5.6% Sample size: 309 | February 6–9, 2014 | Mike Huckabee 20% | Bobby Jindal 13% | Ted Cruz 12% | Rand Paul 10%, Jeb Bush 9%, Chris Christie 8%, Paul Ryan 8%, Marco Rubio 7%, Scott Walker 2%, Someone Else/Undecided 12% |
| Public Policy Polling Margin of error: ± 5.9% Sample size: 274 | Aug. 16–19, 2013 | Rand Paul 18% | Jeb Bush 17% | Paul Ryan 11% | Chris Christie 10%, Bobby Jindal 10%, Ted Cruz 8%, Marco Rubio 8%, Rick Santorum 5%, Susana Martinez 0%, Someone Else/Undecided 13% |
| Public Policy Polling Margin of error: ± 4% Sample size: 603 | Feb. 8–12, 2013 | Marco Rubio 21% | Mike Huckabee 18% | Bobby Jindal 14% | Chris Christie 11%, Jeb Bush 9%, Rand Paul 8%, Paul Ryan 7%, Rick Perry 3%, Susana Martinez 1%, Someone Else/Undecided 7% |

## Maine

Winner: Ted Cruz Caucus date: March 5, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Caucus results | March 5, 2016 | Ted Cruz 45.90% | Donald Trump 32.59% | John Kasich 12.19% | Marco Rubio 8.01%, Ben Carson 0.71%, Rand Paul 0.30%, Jeb Bush 0.17%, Carly Fiorina 0.09%, Mike Huckabee 0.05% |
| Public Policy Polling Margin of error: ±5.4% Sample size: 331 | November 8–11, 2013 | Chris Christie 27% | Ted Cruz 14% | Jeb Bush 12% | Rand Paul 10%, Paul Ryan 9%, Marco Rubio 4%, Bobby Jindal 2%, Rick Santorum 1%, Scott Walker 1%, Someone Else/Undecided 20% |

## Maryland

Winner: Donald Trump Primary date: April 26, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Primary results | April 26, 2016 | Donald Trump 54.45% | John Kasich 23.03% | Ted Cruz 18.88% | Ben Carson 1.30%, Marco Rubio 0.68%, Jeb Bush 0.56%, Rand Paul 0.34%, Chris Christie 0.27%, Carly Fiorina 0.22%, Mike Huckabee 0.18%, Rick Santorum 0.10% |
| ARG Margin of error: ± 5% Sample size: 400 | April 21–24, 2016 | Donald Trump 55% | John Kasich 21% | Ted Cruz 19% | Undecided 5% |
| Public Policy Polling Margin of error: ± 5.7% Sample size: 310 | April 15–17, 2016 | Donald Trump 43% | John Kasich 29% | Ted Cruz 24% | Undecided 5% |
| Monmouth University Margin of error: ± 5.7% Sample size: 301 | April 10–11, 2016 | Donald Trump 47% | John Kasich 27% | Ted Cruz 19% | Other 1%, Undecided 7% |
| NBC4/Marist Margin of error: ± 5.1% Sample size: 368 | April 5–9, 2016 | Donald Trump 41% | Ted Cruz 29% | John Kasich 24% | Other 1%, Undecided 6% |
| Washington Post/University of Maryland Margin of error: ± 7.5% Sample size: 283 | March 30–April 3, 2016 | Donald Trump 41% | John Kasich 31% | Ted Cruz 22% | Other 6% |
| Baltimore Sun/University of Baltimore Margin of error: ± 4.9% Sample size: 400 | March 4–8, 2016 | Donald Trump 34% | Ted Cruz 25% | John Kasich 18% | Marco Rubio 14%, Other 1%, Undecided 9% |
| Gonzales Research Margin of error: ± 5.8% Sample size: 301 | January 11–16, 2016 | Donald Trump 31.9% | Ted Cruz 15.0% | Marco Rubio 13.6% | Ben Carson 9.3%, Chris Christie 8.0%, Jeb Bush 4.0%, Someone else 5.6%, Undecided 12.6% |
| Baltimore Sun/University of Baltimore Margin of error: ± 5.6% Sample size: 307 | November 13–17, 2015 | Ben Carson 27% | Donald Trump 23% | Marco Rubio 16% | Ted Cruz 10%, John Kasich 4%, Chris Christie 3%, Carly Fiorina 3%, Jeb Bush 3%, Mike Huckabee 1%, Rand Paul 1%, Other/Unsure 9% |
| Baltimore Sun Margin of error: ± 4.4% Sample size: 499 | February 8–12, 2014 | Ben Carson 24% | Jeb Bush 15% | Chris Christie 14% | Rand Paul 14%, Marco Rubio 12%, Undecided/Other 21% |

## Massachusetts

Winner: Donald Trump Primary date: March 1, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Primary results | March 1, 2016 | Donald Trump 48.99% | John Kasich 17.94% | Marco Rubio 17.75% | Ted Cruz 9.50%, Ben Carson 2.57%, Jeb Bush 1.03%, Chris Christie 0.30%, Rand Paul 0.29%, Carly Fiorina 0.18%, Jim Gilmore 0.12%, Mike Huckabee 0.11%, Mike Huckabee 0.08%, George Pataki 0.08%, Rick Santorum 0.05% |
| Emerson College Margin of error: ± 4.8% Sample size: 408 | February 26–28, 2016 | Donald Trump 51% | Marco Rubio 20% | John Kasich 14% | Ted Cruz 10%, Ben Carson 1%, Undecided 1% |
| UMass Amherst/WBZ Margin of error: ± 6.3% Sample size: 292 | February 24–26, 2016 | Donald Trump 47% | Marco Rubio 15% | Ted Cruz 15% | John Kasich 11%, Ben Carson 2%, Other 7%, Don't Know 3% |
| Suffolk University Margin of error: ± 4.4% Sample size: 500 | February 24–26, 2016 | Donald Trump 42.6% | Marco Rubio 19.8% | John Kasich 17% | Ted Cruz 8.8%, Ben Carson 3.8%, Other 1%, Don't Know 7% |
| MassINC/WBUR Margin of error: ± 4.9% Sample size: 386 | February 21–23, 2016 | Donald Trump 39% | Marco Rubio 18% | John Kasich 17% | Ted Cruz 9%, Ben Carson 5%, Don't Know 12% |
| Emerson College Margin of error: ± 5.7% Sample size: 289 | February 19–21, 2016 | Donald Trump 50% | Marco Rubio 16% | John Kasich 13% | Ted Cruz 10%, Ben Carson 2% |
| Suffolk University Margin of error: ± ?% Sample size: 134 | November 19–22, 2015 | Donald Trump 32% | Marco Rubio 18% | Ted Cruz 10% | Jeb Bush 7%, Ben Carson 5%, Carly Fiorina 4%, Chris Christie 4%, John Kasich 2%, Rand Paul 1%, Mike Huckabee 0%, Rick Santorum 0%, Lindsey Graham 0%, George Pataki 0%, Jim Gilmore 0%, Undecided 14% |
| Emerson College Margin of error: ± 5.9% Sample size: 271 | October 16–18, 2015 | Donald Trump 47.8% | Ben Carson 13.9% | Marco Rubio 11.8% | Jeb Bush 7.1%, Carly Fiorina 6.5%, Ted Cruz 5.1%, John Kasich 2.8%, Chris Christie 2.3%, Lindsey Graham 0.9%, Mike Huckabee 0.4%, Rand Paul 0.1%, Undecided 1.4% |
| Emerson College Margin of error: ± ? Sample size: 216 | March 14–19, 2015 | Jeb Bush 19% | Scott Walker 19% | Ben Carson 13% | Rand Paul 7%, Chris Christie 6%, Ted Cruz 6%, Mike Huckabee 3%, Other/Undecided 28% |
| Suffolk University Margin of error: ± 4.9% Sample size: 400 | August 21–24, 2014 | Chris Christie 11% | Paul Ryan 11% | Jeb Bush 10.75% | Rand Paul 10.5%, Mike Huckabee 7%, Scott Walker 6.75%, Marco Rubio 5.75%, Rick Perry 4.75%, Ted Cruz 4.25%, Bobby Jindal 3.5%, Rick Santorum 2.75%, Jon Huntsman Jr. 1.75%, John Kasich 1%, Undecided 18.25%, Other 0.5%, Refused 0.5% |
| Suffolk University Margin of error: ± 4.9% Sample size: 400 | August 21–24, 2014 | Mitt Romney 48.62% | Chris Christie 7.69% | Paul Ryan 5.54% | Jeb Bush 5.23%, Ted Cruz 3.69%, Jon Huntsman Jr. 3.38%, Bobby Jindal 3.38%, Rand Paul 3.38%, Scott Walker 3.38%, Mike Huckabee 3.08%, Marco Rubio 2.77%, Rick Perry 1.54%, John Kasich 1.23%, Rick Santorum 1.23%, Undecided 4.92%, Refused 0.92% |

## Michigan

Winner: Donald Trump Primary date: March 8, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Primary results | March 8, 2016 | Donald Trump 36.55% | Ted Cruz 24.68% | John Kasich 24.26% | Marco Rubio 9.34%, Ben Carson 1.61%, Jeb Bush 0.81%, Rand Paul 0.29%, Chris Christie 0.24%, Mike Huckabee 0.20%, Rick Santorum 0.13%, Carly Fiorina 0.11%, George Pataki 0.04%, Lindsey Graham 0.03% |
| FOX 2 Detroit/ Mitchell Research Margin of error: ± 4.5% Sample size: 472 | March 7, 2016 | Donald Trump 41% | John Kasich 23% | Ted Cruz 18% | Marco Rubio 8%, Ben Carson 3%, Other 1%, Undecided 6% |
| FOX 2 Detroit/ Mitchell Research Margin of error: ± 3.8% Sample size: 663 | March 6, 2016 | Donald Trump 42% | John Kasich 19.6% | Ted Cruz 19.3% | Marco Rubio 9%, Ben Carson 4%, Other 1%, Undecided 5% |
| Trafalgar Group Margin of error: ± 2.42% Sample size: 1610 | March 5–6, 2016 | Donald Trump 40.89% | Ted Cruz 23.26% | John Kasich 23.04% | Marco Rubio 8.34%, Undecided 4.47% |
| Monmouth University Margin of error: ± 4.9% Sample size: 402 | March 3–6, 2016 | Donald Trump 36% | Ted Cruz 23% | John Kasich 21% | Marco Rubio 13%, Other 1%, Undecided 5% |
| ARG Margin of error: ± 5% Sample size: 400 | March 4–5, 2016 | John Kasich 33% | Donald Trump 31% | Ted Cruz 15% | Marco Rubio 11%, Ben Carson 6%, Other 1%, Undecided 4% |
| CBS News/YouGov Margin of error: ± 5.9% Sample size: 638 | March 2–4, 2016 | Donald Trump 39% | Ted Cruz 24% | Marco Rubio 16% | John Kasich 15%, Ben Carson 5% |
| NBC News/WSJ/Marist Margin of error: ± 3.3% Sample size: 877 | March 1–3, 2016 | Donald Trump 41% | Ted Cruz 22% | Marco Rubio 17% | John Kasich 13%, Uncommitted 2%, Other 2%, Undecided 5% |
| Trafalgar Group Margin of error: ± 2.42% Sample size: 1643 | March 2–3, 2016 | Donald Trump 41.87% | Ted Cruz 20.45% | John Kasich 18.14% | Marco Rubio 13.79%, Undecided 5.75% |
| Michigan State University Margin of error: ± 5.8% Sample size: 262 | January 25 – March 3, 2016 | Donald Trump 36.1% | Ted Cruz 19.5% | Marco Rubio 18.1% | John Kasich 8.9%, Other 7% |
| FOX 2 Detroit/ Mitchell Research Margin of error: ± 3.86% Sample size: 643 | March 2, 2016 | Donald Trump 42% | Ted Cruz 19% | Marco Rubio 15% | John Kasich 14%, Ben Carson 5%, Other 1%, Undecided 5% |
| FOX 2 Detroit/ Mitchell Research Margin of error: ± 3.76% Sample size: 679 | March 1, 2016 | Donald Trump 39% | Marco Rubio 19% | Ted Cruz 14% | John Kasich 12%, Ben Carson 9%, Other 2%, Undecided 7% |
| EPIC/MRA Margin of error: ± 4.9% Sample size: 400 | February 27–29, 2016 | Donald Trump 29% | Ted Cruz 19% | Marco Rubio 18% | John Kasich 8%, Ben Carson 8%, Undecided 18% |
| MRG Margin of error: ± ?% Sample size: 217 | February 22–27, 2016 | Donald Trump 33% | Marco Rubio 18% | Ted Cruz 18% | John Kasich 10%, Ben Carson 9%, Other/Undecided 12% |
| Target Insyght Margin of error: ± 5% Sample size: 400 | February 22–24, 2016 | Donald Trump 41% | Marco Rubio 17% | Ted Cruz 14% | John Kasich 12%, Ben Carson 8%, Undecided 6% |
| FOX 2 Detroit/ Mitchell Research Margin of error: ± 4.57% Sample size: 459 | February 23, 2016 | Donald Trump 41% | Marco Rubio 19% | Ted Cruz 16% | John Kasich 11%, Ben Carson 7%, Other 1%, Undecided 5% |
| ARG Margin of error: ± 5% Sample size: 400 | February 19–20, 2016 | Donald Trump 35% | John Kasich 17% | Ted Cruz/ Marco Rubio 12% | Ben Carson 9%, Jeb Bush 4%, Other 1%, Undecided 10% |
| Detroit News/WDIV-TV Margin of error: ± 4% Sample size: 600 | February 14–16, 2016 | Donald Trump 25.2% | Ted Cruz 15% | Marco Rubio 11.8% | John Kasich 10.5%, Ben Carson 9%, Jeb Bush 5.3%, Refused 1.9%, Undecided 21.3% |
| FOX 2 Detroit/ Mitchell Research Margin of error: ± 4.94% Sample size: 394 | February 15, 2016 | Donald Trump 41% | Ted Cruz 11% | John Kasich 11% | Marco Rubio 10%, Ben Carson 7%, Jeb Bush 5%, Undecided 14% |
| FOX 2 Detroit/ Mitchell Research Margin of error: ± 5.39% Sample size: 330 | February 4, 2016 | Donald Trump 41% | Marco Rubio 20% | Ted Cruz 16% | Ben Carson 9%, John Kasich 6%, Jeb Bush 2%, Chris Christie 2%, Someone Else 2%, Not Sure 7% |
| Target-Insyght/ MIRS/IMP Margin of error: ± 5% Sample size: 400 | February 2–4, 2016 | Donald Trump 35% | Marco Rubio 21% | Ted Cruz 21% | John Kasich 6%, Ben Carson 5%, Jeb Bush 3%, Chris Christie 3%, Carly Fiorina 3%, Undecided 4% |
| Mitchell Research Margin of error: ± 4.41% Sample size: 493 | January 25, 2016 | Donald Trump 51% | Ted Cruz 15% | Marco Rubio 12% | Ben Carson 5%, Jeb Bush 5%, Chris Christie 5%, Someone else 3%, undecided 5% |
| MRG Margin of error: ± 4% Sample size: 600 | September 9–14, 2015 | Ben Carson 24% | Donald Trump 22% | Jeb Bush 8% | Mike Huckabee 6%, Marco Rubio 4%, Ted Cruz 3%, Carly Fiorina 3%, John Kasich 2%, Scott Walker 2%, Rand Paul 2%, Chris Christie 1%, Undecided 21% |
| Mitchell Poll Margin of error: ± 5% Sample size: 432 | August 10, 2015 | Donald Trump 20% | Carly Fiorina 15% | Ben Carson 12% | Jeb Bush 12%, Marco Rubio 10%, Ted Cruz 8%, John Kasich 8%, Chris Christie 4%, Mike Huckabee 4%, Scott Walker 4%, Rand Paul 2% |
| Public Policy Polling Margin of error: ± 4.5% Sample size: 465 | June 25–28, 2015 | Scott Walker 15% | Jeb Bush 14% | Ben Carson 14% | Donald Trump 14%, Marco Rubio 9%, Mike Huckabee 8%, Chris Christie 5%, Ted Cruz 5%, Rand Paul 4%, Carly Fiorina 3%, John Kasich 3%, Rick Santorum 2%, Lindsey Graham 1%, Rick Perry 1%, Bobby Jindal 0%, George Pataki 0%, Some else/Not sure 2% |
| MIRS Margin of error: ± 6.5% Sample size: 366 | February 18–20, 2015 | Scott Walker 43% | Jeb Bush 19% | Rand Paul 12% | Ben Carson 10%, Chris Christie 3%, Marco Rubio 3%, Rick Santorum 3%, Mike Huckabee 3% |
| Suffolk University Margin of error: ± 7% Sample size: 188 | September 6–10, 2014 | Jeb Bush 11.17% | Mike Huckabee 11.17% | Marco Rubio 9.57% | Rand Paul 6.91%, Chris Christie 6.38%, Scott Walker 6.38%, Rick Perry 6.38%, Paul Ryan 5.85%, Ted Cruz 5.32%, Rick Santorum 5.32%, Bobby Jindal 2.66%, Jon Huntsman Jr. 2.13%, John Kasich 0.53%, Undecided 17.02%, Refused 2.13%, Other 1.06% |
| Suffolk University Margin of error: ± 7% Sample size: 188 | September 6–10, 2014 | Mitt Romney 39.47% | Jeb Bush 9.87% | Ted Cruz 6.58% | Mike Huckabee 5.26%, Marco Rubio 5.26%, Scott Walker 4.61%, Chris Christie 2.63%, Bobby Jindal 2.63%, Paul Ryan 2.63%, Rick Perry 1.97%, Jon Huntsman Jr. 1.32%, Rick Santorum 1.32%, Rand Paul 1.32%, John Kasich 0%, Undecided 13.82%, Refused 1.32% |
| Magellan Strategies Margin of error: ± 6% Sample size: 270 | April 14–15, 2014 | Mike Huckabee 24% | Jeb Bush 16% | Rand Paul 15% | Chris Christie 14%, Ted Cruz 7%, Marco Rubio 5%, Scott Walker 4%, John Kasich 3%, Undecided 12% |
| Public Policy Polling Margin of error: ± 5.4% Sample size: 334 | April 3–6, 2014 | Rand Paul 16% | Chris Christie 15% | Mike Huckabee 15% | Ted Cruz 11%, Jeb Bush 9%, Paul Ryan 5%, Scott Walker 5%, Marco Rubio 4%, Bobby Jindal 3%, Someone Else/Undecided 17% |
| Public Policy Polling Margin of error: ± 4.6% Sample size: 450 | December 5–8, 2013 | Rand Paul 18% | Chris Christie 16% | Ted Cruz 15% | Jeb Bush 10%, Marco Rubio 8%, Paul Ryan 7%, Scott Walker 5%, Bobby Jindal 4%, Rick Santorum 2%, Someone Else/Undecided 14% |
| Public Policy Polling Margin of error: ± 5.4% Sample size: 334 | May 30 – June 2, 2013 | Rand Paul 18% | Jeb Bush 16% | Chris Christie 15% | Paul Ryan 12%, Marco Rubio 11%, Ted Cruz 7%, Rick Santorum 6%, Bobby Jindal 4%, Susana Martinez 0%, Someone Else/Undecided 10% |

## Minnesota

Winner: Marco Rubio Primary date: March 1, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Primary results | March 1, 2016 | Marco Rubio 36.24% | Ted Cruz 29.04% | Donald Trump 21.42% | Ben Carson 7.37%, John Kasich 5.75% |
| Star Tribune/Mason-Dixon Margin of error: ± 6.5% Sample size: ? | January 18–20, 2016 | Marco Rubio 23% | Ted Cruz 21% | Donald Trump 18% | Ben Carson 11%, Jeb Bush 7%, Chris Christie 5%, Other 6%, Undecided 9% |
| KSTP Margin of error: ± 4.4% Sample size: 516 | October 29 – November 2, 2015 | Donald Trump 26% | Ben Carson 19% | Marco Rubio 16% | Jeb Bush 9%, Ted Cruz 4%, Carly Fiorina 4%, Rand Paul 3%, Mike Huckabee 2%, others 4%, undecided 13% |
| Public Policy Polling Margin of error: ± 5.2% Sample size: 353 | July 30 – August 2, 2015 | Scott Walker 19% | Donald Trump 18% | Jeb Bush 15% | Ben Carson 11%, Ted Cruz 7%, Mike Huckabee 6%, Rand Paul 5%, Marco Rubio 5%, Chris Christie 4%, Carly Fiorina 3%, John Kasich 3%, Bobby Jindal 1%, Rick Perry 0%, Rick Santorum 0%, Lindsey Graham 0%, George Pataki 0%, Jim Gilmore 0%, Undecided 1% |
| Suffolk University Margin of error: ± 10% Sample size: 87 | April 24–28, 2014 | Jeb Bush 14.94% | Rick Perry 14.94% | Chris Christie 9.20% | Ted Cruz 9.20%, Marco Rubio 8.05%, Rand Paul 5.75%, Ben Carson 4.60%, Rick Santorum 4.60%, Condoleezza Rice 3.45%, Scott Walker 3.45%, Bobby Jindal 2.30%, Sarah Palin 2.30%, Paul Ryan 2.30%, Mike Huckabee 1.15%, Undecided 13.79% |

## Mississippi

Winner: Donald Trump Primary date: March 8, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Primary results | March 8, 2016 | Donald Trump 47.24% | Ted Cruz 36.12% | John Kasich 8.84% | Marco Rubio 5.26%, Ben Carson 1.35%, Jeb Bush 0.41%, Mike Huckabee 0.26%, Rand Paul 0.15%, Rick Santorum 0.12%, Chris Christie 0.12%, Carly Fiorina 0.05%, Lindsey Graham 0.04%, George Pataki 0.03% |
| Magellan Strategies Margin of error: ± 3.1% Sample size: 995 | February 29, 2016 | Donald Trump 41% | Ted Cruz 17% | Marco Rubio 16% | John Kasich 8%, Ben Carson 5%, Undecided 13% |
| Opinion Savvy/Insider Advantage Margin of error: ± 4.6% Sample size: 444 | August 2, 2015 | Donald Trump 26.9% | Jeb Bush 20.4% | Ben Carson 9.6% | Ted Cruz 8.7%, Mike Huckabee 8.7%, Scott Walker 7%, Bobby Jindal 3.5%, Marco Rubio 3%, Chris Christie 2.9%, Rand Paul 2%, Carly Fiorina 1.8%, Rick Perry 1.3%, John Kasich 1.3%, Rick Santorum 0.4%, George Pataki 0.3%, Lindsey Graham 0%, Someone else 1.1%, Undecided 1.1% |
| Public Policy Polling Margin of error: ± 4.7% Sample size: 434 | July 10–13, 2014 | Mike Huckabee 25% | Jeb Bush 16% | Ted Cruz 11% | Chris Christie 8%, Rand Paul 6%, Paul Ryan 6%, Marco Rubio 5%, Rick Santorum 3%, Scott Walker 2%, Other/Undecided 16% |
| Harper Polling Margin of error: ± 4.1% Sample size: 570 | April 3–5, 2014 | Jeb Bush 29% | Chris Christie 12% | Ted Cruz 12% | Rand Paul 11%, Bobby Jindal 8%, Marco Rubio 5%, Scott Walker 5%, Rick Santorum 2%, Undecided 17% |
| Harper Polling Margin of error: ± 3.68% Sample size: 710 | December 17–18, 2013 | Chris Christie 15.72% | Ted Cruz 15.58% | Rand Paul 14.45% | Paul Ryan 11.61%, Marco Rubio 10.34%, Bobby Jindal 9.49%, Rick Santorum 3.97%, Scott Walker 1.7%, Not sure 17.14% |
| Public Policy Polling Margin of error: ±4.8% Sample size: 422 | November 15–17, 2013 | Ted Cruz 19% | Chris Christie 17% | Jeb Bush 16% | Rand Paul 12%, Bobby Jindal 8%, Marco Rubio 8%, Rick Santorum 5%, Paul Ryan 4%, Scott Walker 1%, Someone Else/Undecided 10% |

## Missouri

Winner: Donald Trump Primary date: March 15, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Primary results | March 15, 2016 | Donald Trump 40.84% | Ted Cruz 40.63% | John Kasich 10.10% | Marco Rubio 6.09%, Ben Carson 0.88%, Jeb Bush 0.36%, Mike Huckabee 0.23%, Rand Paul 0.19%, Chris Christie 0.18%, Rick Santorum 0.08%, Carly Fiorina 0.07% |
| Fort Hayes State University Margin of error: ± 7% Sample size: 208 | March 3–10, 2016 | Donald Trump 36% | Ted Cruz 29% | Marco Rubio 9% | John Kasich 8%, Other 1%, Undecided 17% |
| Remington Research Group Margin of error: ± 2.6% Sample size: 1,528 | December 18–19, 2015 | Donald Trump 33% | Ted Cruz 23% | Marco Rubio 12% | Ben Carson 8%, Jeb Bush 3%, Chris Christie 3%, Carly Fiorina 2%, Rand Paul 1%, John Kasich 1%, Undecided 14% |
| Public Policy Polling Margin of error: 4.7% Sample size: 440 | August 7–8, 2015 | Donald Trump 23% | Ben Carson 11% | Jeb Bush 11% | Mike Huckabee 10%, Ted Cruz 9%, Scott Walker 8%, Carly Fiorina 7%, Marco Rubio 6%, John Kasich 4%, Rand Paul 4%, Chris Christie 1%, Bobby Jindal 1%, Rick Perry 1%, Rick Santorum 1%, George Pataki 0%, Lindsey Graham 0%, Jim Gilmore 0%, Someone else/Undecided 2% |

## Montana

| Poll source | Date | 1st | 2nd | 3rd | Other |
| Primary results | June 7, 2016 | Donald Trump 73.72% | Ted Cruz 9.36% | John Kasich 6.85% | Marco Rubio 3.30%, Jeb Bush 2.08% |
| Gravis Marketing Margin of error: ± 3% Sample size: ? | February 24–25, 2015 | Jeb Bush 19.8% | Mike Huckabee 18.8% | Scott Walker 18.8% | Marco Rubio 8.9%, Chris Christie 5%, Ted Cruz 4%, Rand Paul 4%, Rick Perry 3%, Ben Carson 2%, Unsure 15.8% |
| Public Policy Polling Margin of error: ± 4.5% Sample size: 469 | November 15–17, 2013 | Ted Cruz 20% | Chris Christie 14% | Rand Paul 14% | Jeb Bush 11%, Paul Ryan 10%, Marco Rubio 8%, Rick Santorum 4%, Bobby Jindal 3%, Scott Walker 2%, Someone Else/Undecided 14% |
| Public Policy Polling Margin of error: ± 5.3% Sample size: 340 | June 21–23, 2013 | Rand Paul 21% | Jeb Bush 13% | Chris Christie 12% | Ted Cruz 12%, Marco Rubio 10%, Paul Ryan 9%, Bobby Jindal 6%, Susana Martinez 3%, Rick Santorum 1%, Someone Else/Undecided 13% |

## Nebraska

Winner: Donald Trump Primary date: May 10, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Primary results | May 10, 2016 | Donald Trump 61.43% | Ted Cruz 18.45% | John Kasich 11.41% | Ben Carson 5.08%, Marco Rubio 3.63% |
| Harper Polling Margin of error: ± 4% Sample size: 565 | February 3–4, 2014 | Rand Paul 13.41% | Paul Ryan 12.85% | Chris Christie 12.66% | Ted Cruz 12.66%, Marco Rubio 8.38%, Scott Walker 8.38%, Bobby Jindal 5.03%, Rick Santorum 4.66%, Undecided 21.97% |

## Nevada

Winner: Donald Trump Caucus date: February 23, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Primary results | February 23, 2016 | Donald Trump 45.75% | Marco Rubio 23.77% | Ted Cruz 21.30% | Ben Carson 4.79%, John Kasich 3.59% |
| CNN/ORC Margin of error: ± 6.5% Sample size: 245 | February 10–15, 2016 | Donald Trump 45% | Marco Rubio 19% | Ted Cruz 17% | Ben Carson 7%, John Kasich 5%, Jeb Bush 1%, Someone else 2%, No opinion 4% |
| Gravis Marketing Margin of error: ± 5% Sample size: 406 | December 23–27, 2015 | Donald Trump 33% | Ted Cruz 20% | Marco Rubio 11% | Ben Carson 6%, Carly Fiorina 5%, Jeb Bush 5%, Chris Christie 5%, Rand Paul 1%, Rick Santorum 1%, John Kasich 0%, Mike Huckabee 0%, Unsure 12% |
| Morning Consult Margin of error: ± 4% Sample size: 249 | November 10–16, 2015 | Donald Trump 38% | Ben Carson 18% | Marco Rubio 12% | Ted Cruz 7%, Jeb Bush 6%, Carly Fiorina 2%, Mike Huckabee 2%, Rand Paul 2%, Chris Christie 1%, John Kasich 1%, Lindsey Graham 1%, Rick Santorum 0%, Someone else 1%, Don't know/No opinion 8% |
| CNN/ORC Margin of error: ± 6% Sample size: 285 | October 3–10, 2015 | Donald Trump 38% | Ben Carson 22% | Carly Fiorina 8% | Marco Rubio 7%, Jeb Bush 6%, Ted Cruz 4%, Mike Huckabee 4%, Rand Paul 2%, Jim Gilmore 1%, Chris Christie 1%, George Pataki 1%, John Kasich 1%, Lindsey Graham 0%, Bobby Jindal 0%, Rick Santorum 0%, None 3%, No opinion 3% |
| Gravis Marketing Margin of error: ± 4% Sample size: 623 | July 12–13, 2015 | Donald Trump 28% | Scott Walker 15% | Ben Carson 8% | Jeb Bush 7%, Marco Rubio 5%, Rand Paul 4%, Ted Cruz 4%, Rick Perry 3%, Bobby Jindal 2%, Mike Huckabee 2%, Chris Christie 2%, George Pataki 1%, Carly Fiorina 0%, Lindsey Graham 0%, Rick Santorum 0%, Undecided 20% |
| Gravis Marketing Margin of error: ± 5% Sample size: 443 | March 27, 2015 | Ted Cruz 18% | Scott Walker 18% | Jeb Bush 16% | Marco Rubio 7%, Ben Carson 6%, Rand Paul 5%, Chris Christie 4%, Mike Huckabee 4%, Rick Santorum 2%, Carly Fiorina 1%, Undecided 20% |
| Gravis Marketing Margin of error: ± 5% Sample size: 438 | February 21–22, 2015 | Scott Walker 27% | Jeb Bush 19% | Chris Christie 8% | Ted Cruz 6%, Mike Huckabee 6%, Rick Perry 6%, Marco Rubio 4%, Rick Santorum 4%, Rand Paul 3%, Bobby Jindal 1%, Undecided 16% |

## New Jersey

| Poll source | Date | 1st | 2nd | 3rd | Other |
| Primary results | June 7, 2016 | Donald Trump 80.39% | John Kasich 13.40% | Ted Cruz 6.21% | |
| Monmouth University Margin of error: ± 5.7% Sample size: 301 | May 1–3, 2016 | Donald Trump 70% | John Kasich 15% | Ted Cruz 11% | Undecided 5% |
| Rutgers-Eagleton Margin of error: ± 6.9% Sample size: 244 | April 1–8, 2016 | Donald Trump 52% | John Kasich 24% | Ted Cruz 18% | Someone Else 4%, Don't Know 2% |
| Rutgers-Eagleton Margin of error: ± 7.0% Sample size: 227 | February 6–15, 2016 | Donald Trump 38% | Marco Rubio 11% | Ted Cruz 10% | John Kasich 8%, Jeb Bush 7%, Chris Christie 7%, Ben Carson 5%, Carly Fiorina 2%, Someone Else 2%, Don't Know 11% |
| Rutgers-Eagleton Margin of error: ± ? Sample size: 230 | November 30 – December 6, 2015 | Donald Trump 30% | Chris Christie 14% | Marco Rubio 13% | Ted Cruz 10%, Ben Carson 4%, Jeb Bush 2%, Carly Fiorina 2%, John Kasich 2%, Rand Paul 1%, Mike Huckabee 1%, Rick Santorum 1%, Lindsey Graham 0%, George Pataki 0%, Jim Gilmore 0%, Other 1%, Don't know 19% |
| Fairleigh Dickinson University Margin of error: ± 5.6% Sample size: 307 | November 9–15, 2015 | Donald Trump 31% | Marco Rubio 18% | Ben Carson 11% | Chris Christie 9%, Ted Cruz 6%, Jeb Bush 5%, Carly Fiorina 5%, John Kasich 2%, Rand Paul 2%, Mike Huckabee 2%, Rick Santorum 1%, Lindsey Graham 1%, George Pataki 0%, other 1%, Wouldn't vote 1%, Don't know/Refused 5% |
| Quinnipiac University Margin of error: ± 4.5% Sample size: 481 | November 4–8, 2015 | Donald Trump 31% | Ben Carson 16% | Marco Rubio 15% | Chris Christie 8%, Ted Cruz 7%, Carly Fiorina 4%, Jeb Bush 4%, John Kasich 3%, Bobby Jindal 1%, Rand Paul 1%, Rick Santorum 1%, Mike Huckabee 0%, Lindsey Graham 0%, Other 1%, Someone else 1%, Would not vote 2%, DK 6% |
| Rutgers-Eagleton Margin of error: ± 6.8% Sample size: 266 | October 3–10, 2015 | Donald Trump 32% | Ben Carson 13% | Marco Rubio 13% | Ted Cruz 6%, Chris Christie 5%, Carly Fiorina 5%, Jeb Bush 5%, John Kasich 2%, Mike Huckabee 1%, George Pataki 1%, Rick Santorum <1%, Bobby Jindal <1%, Rand Paul <1%, Other 1%, Don't know 16% |
| Rutgers-Eagleton Margin of error: ± 6.8% Sample size: 263 | July 25 – August 1, 2015 | Donald Trump 21% | Chris Christie 12% | Jeb Bush 10% | Scott Walker 10%, Ben Carson 5%, Marco Rubio 5%, Ted Cruz 4%, Rand Paul 2%, John Kasich 2%, Mike Huckabee 1%, Newt Gingrich 1%, Paul Ryan 1%, Carly Fiorina <1%, Lindsey Graham <1%, No one 3%, Other 2%, Don't know 19% |
| Fairleigh Dickinson University Margin of error: ± 6.3% Sample size: 267 | June 15–21, 2015 | Jeb Bush 18% | Chris Christie 18% | Donald Trump 11% | Scott Walker 9%, Ben Carson 6%, Marco Rubio 6%, Rand Paul 5%, Ted Cruz 3%, Carly Fiorina 3%, Mike Huckabee 3%, George Pataki 2%, Rick Perry 2%, Rick Santorum 2%, Lindsey Graham 1%, Bobby Jindal 0%, John Kasich 0%, other 2%, Wouldn't vote 2%, Don't know/Refused 10% |
| Fairleigh Dickinson University Margin of error: ± 6% Sample size: 268 | April 13–19, 2015 | Chris Christie 20% | Scott Walker 14% | Jeb Bush 13% | Ted Cruz 8%, Rand Paul 8%, Other 15%, Don't know 22% |
| Quinnipiac University Margin of error: ± 4.7% Sample size: 444 | April 9–14, 2015 | Chris Christie 22% | Scott Walker 14% | Jeb Bush 11% | Rand Paul 9%, Marco Rubio 7%, Ted Cruz 6%, Mike Huckabee 4%, Bobby Jindal 3%, Ben Carson 2%, Carly Fiorina 1% John Kasich 1%, Lindsey Graham 0%, Rick Perry 0%, Rick Santorum 0%, Other 3%, Wouldn't vote 4%, Don't know 13% |
| Quinnipiac University Margin of error: ± 4.7% Sample size: 444 | April 9–14, 2015 | Chris Christie 23% | Scott Walker 15% | Rand Paul 11% | Marco Rubio 9%, Ted Cruz 6%, Mike Huckabee 4%, Bobby Jindal 3%, Ben Carson 2%, Carly Fiorina 1% John Kasich 1%, Rick Santorum 1%, Lindsey Graham 0%, Rick Perry 0%, Other 3%, Wouldn't vote 4%, Don't know 16% |
| Quinnipiac University Margin of error: ± 4.7% Sample size: 444 | April 9–14, 2015 | Chris Christie 23% | Jeb Bush 12% | Marco Rubio 11% | Rand Paul 10%, Ted Cruz 8%, Mike Huckabee 4%, Bobby Jindal 3%, Ben Carson 3%, John Kasich 2%, Carly Fiorina 1% Rick Perry 1%, Lindsey Graham 0%, Rick Santorum 0%, Other 3%, Wouldn't vote 4%, Don't know 14% |
| Quinnipiac University Margin of error: ± ? Sample size: ? | January 15–19, 2015 | Chris Christie 24% | Mitt Romney 18% | Jeb Bush 13% | Ben Carson 6%, Ted Cruz 6%, Rand Paul 5%, Mike Huckabee 4%, Scott Walker 4%, Marco Rubio 3%, Bobby Jindal 2%, Rick Perry 1%, John Kasich 0%, Rick Santorum 0%, Other 1%, Wouldn't vote 1%, Don't know 14% |
| Rutgers-Eagleton Margin of error: ± ? Sample size: 224 | December 3–10, 2014 | Chris Christie 32% | Mitt Romney 10% | Jeb Bush 6% | Rand Paul 4%, Marco Rubio 4%, Ted Cruz 3%, Ben Carson 2%, Bobby Jindal 2%, Rudy Giuliani 1%, Ron Paul 1%, Rick Perry 1%, Scott Walker 1%, Other 3%, Don't know 31% |
| Rutgers-Eagleton Margin of error: ± ? Sample size: 255 | July 28 – August 5, 2014 | Chris Christie 41% | Mitt Romney 6% | Jeb Bush 5% | Ted Cruz 3%, Rand Paul 2%, Scott Walker 2%, Mike Huckabee 1%, Ron Paul 1%, Rick Perry 1%, Marco Rubio 1%, Paul Ryan 1%, Newt Gingrich <1%, Rudy Giuliani <1%, Bobby Jindal <1%, Sarah Palin <1%, Other 3%, Don't know 30% |
| Fairleigh Dickinson University Margin of error: ± 6.5% Sample size: 228 | August 21–27, 2013 | Chris Christie 51% | Rand Paul 10% | Marco Rubio 9% | Jeb Bush 6%, Other 10%, Undecided 13% |
| Kean University Margin of error: ± ?% Sample size: 309 | April 25–29, 2013 | Chris Christie 41% | Marco Rubio 18% | Rand Paul 13% | Paul Ryan 12%, Other 5%, Undecided 11% |

## New Mexico

| Poll source | Date | 1st | 2nd | 3rd | Other |
| Primary results | June 7, 2016 | Donald Trump 70.69% | Ted Cruz 13.29% | John Kasich 7.57% | Ben Carson 3.65%, Jeb Bush 3.36%, Carly Fiorina 1.44% |
| Albuquerque Journal Margin of error: ± 4.9% Sample size: 403 | February 16–18, 2016 | Ted Cruz 25% | Donald Trump 24% | Marco Rubio 19% | Ben Carson 6%, Jeb Bush 5%, John Kasich 4%, Undecided 17% |

## New York

Winner: Donald Trump Primary date: April 19, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Primary results | April 19, 2016 | Donald Trump 59.21% | John Kasich 24.68% | Ted Cruz 14.53% | |
| Emerson College Margin of error: ± 5.11% Sample size: 361 | April 15 – 17, 2016 | Donald Trump 55% | John Kasich 21% | Ted Cruz 18% | Undecided 5% |
| CBS News/YouGov Margin of error: ± 5.9% Sample size: 705 | April 13 – 15, 2016 | Donald Trump 54% | Ted Cruz 21% | John Kasich 19% | Undecided 6% |
| Optimus Margin of error: ± 0.822% Sample size: 14201 | April 11 – 14, 2016 | Donald Trump 49% | John Kasich 23% | Ted Cruz 14% | Undecided 14% |
| NBC News/WSJ/Marist Margin of error: ± 5.5% Sample size: 313 | April 10 – 13, 2016 | Donald Trump 54% | John Kasich 25% | Ted Cruz 16% | Undecided 5% |
| Siena College Margin of error: ± 5% Sample size: 469 | April 6 – 11, 2016 | Donald Trump 50% | John Kasich 27% | Ted Cruz 17% | Other 6% |
| Quinnipiac University Margin of error: ± 4.2% Sample size: 550 | April 6 – 11, 2016 | Donald Trump 55% | John Kasich 20% | Ted Cruz 19% | Undecided 6% |
| Public Policy Polling Margin of error: ± 4.5% Sample size: 483 | April 7 – 10, 2016 | Donald Trump 51% | John Kasich 25% | Ted Cruz 20% | Undecided 4% |
| NBC News/WSJ/Marist Margin of error: ± 6.1% Sample size: 259 | April 6 – 10, 2016 | Donald Trump 54% | John Kasich 21% | Ted Cruz 18% | Undecided 5%, Other 1% |
| Baruch College/New York 1 Margin of error: ± 5.8% Sample size: 324 | April 5 – 10, 2016 | Donald Trump 60% | John Kasich 17% | Ted Cruz 14% | Undecided 7%, Refused 2% |
| Liberty Research Margin of error: ± 3.0% Sample size: 6041 | April 6 – 7, 2016 | Donald Trump 52% | John Kasich 23% | Ted Cruz 19% | Undecided 6% |
| Emerson College Margin of error: ± 5.4% Sample size: 321 | April 6 – 7, 2016 | Donald Trump 56% | Ted Cruz 22% | John Kasich 17% | Undecided 4%, Other 1% |
| Fox News Margin of error: ± 4% Sample size: 602 | April 4 – 7, 2016 | Donald Trump 54% | John Kasich 22% | Ted Cruz 15% | Undecided 6%, Other 1% |
| Monmouth University Margin of error: ± 5.6% Sample size: 302 | April 3 – 5, 2016 | Donald Trump 52% | John Kasich 25% | Ted Cruz 17% | Undecided 6% |
| CBS News/YouGov Margin of error: ± 5.6% Sample size: 657 | March 29-April 1, 2016 | Donald Trump 52% | Ted Cruz 21% | John Kasich 20% | Other/Undecided 7% |
| Quinnipiac University Margin of error: ± 4.6% Sample size: 457 | March 22 – 29, 2016 | Donald Trump 56% | Ted Cruz 20% | John Kasich 19% | Undecided 4% |
| Liberty Research Margin of error: ± 3% Sample size: 1795 | March 24 – 26, 2016 | Donald Trump 55% | John Kasich 22% | Ted Cruz 19% | Undecided 4% |
| Optimus Margin of error: ± 0.8% Sample size: 14232 | March 22 – 24, 2016 | Donald Trump 47% | John Kasich 22% | Ted Cruz 15% | Undecided 16% |
| Emerson College Margin of error: ± 5.6% Sample size: 298 | March 14 – 16, 2016 | Donald Trump 64% | Ted Cruz 12% | John Kasich 1% | Other 19%, Undecided 1% |
| Siena College Margin of error: ± 6.7% Sample size: 229 | February 28 – March 3, 2016 | Donald Trump 45% | Marco Rubio 18% | John Kasich 18% | Ted Cruz 11%, Other 1%, Undecided 7% |
| Siena College Margin of error: ± 7.0% Sample size: 235 | January 31 – February 3, 2016 | Donald Trump 34% | Ted Cruz 16% | Marco Rubio 16% | Chris Christie 11%, Jeb Bush 7%, John Kasich 4%, Someone else 2%, Don't know/No opinion 10% |
| Siena College Margin of error: ± 6.7% Sample size: 214 | September 14–17, 2015 | Donald Trump 34% | Ben Carson 14% | Jeb Bush 11% | Chris Christie 9%, Carly Fiorina 8%, Marco Rubio 5%, John Kasich 4%, Ted Cruz 3%, George Pataki 3%, Scott Walker 0%, Other 1%, None of them 5%, Undecided 5% |
| Quinnipiac University Margin of error: ± 5.2% Sample size: 356 | May 28 – June 1, 2015 | George Pataki 11% | Marco Rubio 11% | Jeb Bush 10% | Scott Walker 7%, Ben Carson 6%, Chris Christie 6%, Rand Paul 6%, Donald Trump 6%, Mike Huckabee 5%, Ted Cruz 3%, Carly Fiorina 3%, Rick Santorum 2%, Bobby Jindal 1%, John Kasich 1%, Rick Perry 1%, Lindsey Graham 0%, DK/NA 14%, Wouldn't vote 3%, Someone else 1% |
| Siena College Margin of error: ± 6.6% Sample size: 223 | April 19–23, 2015 | Chris Christie 25% | Jeb Bush 20% | Marco Rubio 9% | Rand Paul 8%, Ted Cruz 6%, Other 8%, Undecided 24% |
| Quinnipiac University Margin of error: ± 5.4% Sample size: 327 | March 11–16, 2015 | Jeb Bush 13% | Scott Walker 13% | Chris Christie 12% | Marco Rubio 10%, Rand Paul 8%, Ben Carson 6%, George Pataki 6%, Ted Cruz 3%, Mike Huckabee 3%, Bobby Jindal 1%, John Kasich 1%, Rick Perry 1%, Rick Santorum 1%, Lindsey Graham 0%, Other 1%, Wouldn't vote 3%, Undecided 18% |
| Marist College Margin of error: ± 7.6% Sample size: 167 | November 18–20, 2013 | Chris Christie 40% | Rand Paul 10% | Marco Rubio 10% | Jeb Bush 8%, Paul Ryan 5%, Ted Cruz 3%, Rick Perry 3%, Scott Walker 3%, Susana Martinez 2%, Rick Santorum 2%, Undecided 15% |

## North Carolina

Winner: Donald Trump Primary date: March 15, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Primary results | March 15, 2016 | Donald Trump 40.23% | Ted Cruz 36.76% | John Kasich 12.67% | Marco Rubio 7.73%, Ben Carson 0.96%, Jeb Bush 0.34%, Mike Huckabee 0.27%, Rand Paul 0.24%, Chris Christie 0.11%, Carly Fiorina 0.08%, Rick Santorum 0.06%, Jim Gilmore 0.02% |
| Public Policy Polling Margin of error: ± 3.6% Sample size: 749 | March 11–13, 2016 | Donald Trump 44% | Ted Cruz 33% | John Kasich 11% | Marco Rubio 7%, Undecided 5% |
| High Point University/SurveyUSA Margin of error: ± 3.3% Sample size: 734 | March 9–10, 2016 | Donald Trump 48% | Ted Cruz 28% | John Kasich 12% | Marco Rubio 8%, Other 1%, No Preference 1%, Undecided 2% |
| Civitas Margin of error: ± 4.38% Sample size: 500 | March 5–7, 2016 | Donald Trump 32% | Ted Cruz 26% | Marco Rubio 11% | John Kasich 11%, Ben Carson 3%, Mike Huckabee 2%, Jeb Bush 2%, Rand Paul 1%, Other 1%, No Preference 6% |
| WRAL-TV/SurveyUSA Margin of error: ± 3.8% Sample size: 688 | March 4–7, 2016 | Donald Trump 41% | Ted Cruz 27% | Marco Rubio 14% | John Kasich 11%, Other 4%, Undecided 2% |
| Elon University Margin of error: ± 3.62% Sample size: 733 | February 15–19, 2016 | Donald Trump 27.8% | Ted Cruz 19.1% | Marco Rubio 15.9% | Ben Carson 10%, John Kasich 6.8%, Jeb Bush 4%, Other 1.1%, Undecided 14.6% |
| SurveyUSA/ Time Warner Cable News Margin of error: ± 4.8% Sample size: 437 | February 14–16, 2016 | Donald Trump 36% | Ted Cruz 18% | Marco Rubio 18% | Ben Carson 10%, John Kasich 7%, Jeb Bush 5%, Other 1%, No Preference 1%, Undecided 4% |
| Public Policy Polling Margin of error: ± 4% Sample size: 597 | February 14–16, 2016 | Donald Trump 29% | Ted Cruz 19% | Marco Rubio 16% | John Kasich 11%, Ben Carson 9%, Jeb Bush 7%, Undecided 9% |
| High Point University Margin of error: ± 4.5% Sample size: 477 | January 30– February 4, 2016 | Donald Trump 26% | Ted Cruz 22% | Marco Rubio 20% | Ben Carson 9%, Jeb Bush 3%, Chris Christie 2%, John Kasich 2%, Rand Paul 2%, Mike Huckabee 2%, Carly Fiorina 1%, Rick Santorum <1%, Jim Gilmore 0%, Other 4%, Don't Know 15% |
| Civitas Institute Margin of error: ± 4.38% Sample size: 500 | January 18–19, 2016 | Donald Trump 27% | Ted Cruz 23% | Marco Rubio 10% | Ben Carson 7%, Jeb Bush 4%, Chris Christie 4%, Mike Huckabee 2%, John Kasich 2%, Rand Paul 2%, Carly Fiorina 2%, Rick Santorum 1%, No Preference 11%, Other 2%, Refused 4% |
| Public Policy Polling Margin of error: ± 4.7% Sample size: 433 | January 18–19, 2016 | Donald Trump 38% | Ted Cruz 16% | Marco Rubio 11% | Ben Carson 8%, Jeb Bush 6%, Mike Huckabee 6%, Chris Christie 4%, Carly Fiorina 3%, Rand Paul 3%, John Kasich 2%, Rick Santorum 1%, Jim Gilmore 0%, Undecided 4% |
| Public Policy Polling Margin of error: ± 4.2% Sample size: 537 | December 5–7, 2015 | Donald Trump 33% | Ted Cruz 16% | Marco Rubio/Ben Carson 14% | Jeb Bush 5%, Chris Christie 4%, John Kasich 3%, Carly Fiorina 2%, Mike Huckabee 2%, Rand Paul 2%, Lindsey Graham 1% |
| Elon University Margin of error: ± 3.0% Sample size: 466 | October 29 – November 2, 2015 | Ben Carson 31% | Donald Trump 19% | Marco Rubio/Ted Cruz 9.7% | Jeb Bush 4.65%, Carly Fiorina 3.4%, Mike Huckabee 2.7%, Rand Paul 1.9%, Chris Christie 1.8%, John Kasich 1.3%, Lindsey Graham 1.1%, Bobby Jindal 0%, George Pataki 0%, Rick Santorum 0%, Undecided 12.2%, Refused 0.9%, Don't Know 0.7% |
| Public Policy Polling Margin of error ± 4.8% Sample size: 425 | October 23–25, 2015 | Donald Trump 31% | Ben Carson 23% | Marco Rubio 11% | Jeb Bush 6%, Ted Cruz 6%, Carly Fiorina 6%, Mike Huckabee 5%, John Kasich 5%, Chris Christie 3%, Rand Paul 2%, Rick Santorum 2%, Jim Gilmore 0%, Lindsey Graham 0%, Bobby Jindal 0%, George Pataki 0%, Undecided 1% |
| Public Policy Polling Margin of error: ± 4.1% Sample size: 576 | September 24–27, 2015 | Donald Trump 26% | Ben Carson 21% | Carly Fiorina 12% | Marco Rubio 10%, Ted Cruz 9%, Mike Huckabee 6%, Jeb Bush 5%, John Kasich 4%, Chris Christie 2%, Rick Santorum 1%, Bobby Jindal 1%, George Pataki 0%, Jim Gilmore 0%, Lindsey Graham 0%, Rand Paul 0%, Undecided 2% |
| Elon University Margin of error: ± 4.31% Sample size: 516 | September 17–21, 2015 | Donald Trump 21.5% | Ben Carson 20.9% | Carly Fiorina 9.9% | Marco Rubio 7.4%, Jeb Bush 7%, Ted Cruz 6.2%, Mike Huckabee 4.1%, Rand Paul 2.3%, John Kasich 2.1%, Scott Walker 1.6%, Chris Christie 1.6%, Rick Santorum 1%, Lindsey Graham, 0.2%, Bobby Jindal 0%, George Pataki 0%, Jim Gilmore 0%, Other 0.6%, Undecided 13.2%, Refused 0.6% |
| Public Policy Polling Margin of error: ± 4.5% Sample size: 406 | August 12–16, 2015 | Donald Trump 24% | Ben Carson 14% | Jeb Bush 13% | Ted Cruz 10%, Marco Rubio 9%, Carly Fiorina 6%, Mike Huckabee 6%, Scott Walker 6%, Rand Paul 3%, Chris Christie 2%, Rick Santorum 2%, Rick Perry 1%, John Kasich 1%, Bobby Jindal 0%, Lindsey Graham 0%, George Pataki 0%, Jim Gilmore 0%, Undecided 3% |
| Opinion Savvy/Insider Advantage Margin of error: ± 4.4% Sample size: 486 | August 2–3, 2015 | Donald Trump 30.4% | Jeb Bush 18.8% | Ben Carson 11.9% | Ted Cruz 6.1%, Marco Rubio 5.3%, Scott Walker 5.3%, Mike Huckabee 5.1%, Carly Fiorina 2.6%, John Kasich 2.2%, Rand Paul 2%, Chris Christie 1.8%, Bobby Jindal 1.4%, Rick Santorum 1%, Lindsey Graham 0.7%, Rick Perry 0.4%, George Pataki 0%, Someone else 1.1%, Undecided 3.9% |
| Public Policy Polling Margin of error: ± 5.8% Sample size: 288 | July 2–6, 2015 | Donald Trump 16% | Jeb Bush 12% | Scott Walker 12% | Mike Huckabee 11%, Ben Carson 9%, Marco Rubio 9%, Rand Paul 7%, Ted Cruz 6%, Chris Christie 5%, Carly Florina 4%, Rick Perry 2%, Lindsey Graham 1%, Bobby Jindal 1%, Rick Santorum 1%, John Kasich 0%, George Pataki 0%, Undecided 4% |
| Public Policy Polling Margin of error: ± 5.9% Sample size: 277 | May 28–31, 2015 | Jeb Bush 19% | Rand Paul 12% | Marco Rubio 12% | Scott Walker 12%, Ted Cruz 11%, Mike Huckabee 10%, Ben Carson 9%, Chris Christie 8%, Carly Fiorina 2%, Not Sure 5% |
| SurveyUSA Margin of error: ± 5.5% Sample size: 333 | April 22–27, 2015 | Marco Rubio 16% | Jeb Bush 15% | Rand Paul 14% | Scott Walker 12%, Mike Huckabee 11%, Ted Cruz 10%, Chris Christie 8%, Rick Perry 3%, Rick Santorum 2%, Other/Undecided 10% |
| Public Policy Polling Margin of error: ± 5.2% Sample size: 351 | April 2–5, 2015 | Jeb Bush 19% | Scott Walker 16% | Ted Cruz 11% | Mike Huckabee 11%, Marco Rubio 11%, Ben Carson 9%, Chris Christie 7%, Rand Paul 6%, Rick Perry 2%, Undecided 7% |
| Civitas Institute Margin of error: ± 5% Sample size: 400 | March 20–23, 2015 | Scott Walker 29% | Jeb Bush 16% | Mike Huckabee 14% | Ben Carson 13%, Rand Paul 8%, Chris Christie 7%, Rick Santorum 3%, Other/Undecided 10% |
| Public Policy Polling Margin of error: ± 5% Sample size: 389 | February 24–26, 2015 | Scott Walker 24% | Jeb Bush 17% | Mike Huckabee 15% | Ben Carson 12%, Marco Rubio 7%, Chris Christie 5%, Rand Paul 5%, Ted Cruz 3%, Rick Perry 3%, Undecided 8% |
| Public Policy Polling Margin of error: ± 4.9% Sample size: 400 | January 29–31, 2015 | Mitt Romney 16% | Jeb Bush 14% | Ben Carson 14% | Scott Walker 14%, Mike Huckabee 13%, Ted Cruz 6%, Rand Paul 6%, Chris Christie 5%, Rick Perry 3%, Undecided 9% |
| Meeting Street Research Margin of error: ± ? Sample size: 262 | January 21–22, 2015 | Mitt Romney 18% | Jeb Bush 17% | Chris Christie 11% | Ben Carson 10%, Mike Huckabee 10%, Rand Paul 6%, Ted Cruz 5%, Scott Walker 4%, Rick Perry 3%, Mike Pence 0%, Undecided 15%, Refused 1% |
| Public Policy Polling Margin of error: ± 5% Sample size: 390 | December 4–7, 2014 | Ben Carson 19% | Jeb Bush 15% | Chris Christie 14% | Mike Huckabee 14%, Paul Ryan 11%, Rick Perry 7%, Ted Cruz 5%, Rand Paul 5%, Marco Rubio 4%, Someone else/Not sure 7% |
| Suffolk University Margin of error: ± 8% Sample size: 129 | August 16–19, 2014 | Mike Huckabee 17.5% | Jeb Bush 11% | Chris Christie 7% | Rick Perry 5.5%, Paul Ryan 5.5%, Marco Rubio 4%, Rand Paul 3.5%, Scott Walker 3.5%, Ted Cruz 3%, Bobby Jindal 1.5%, John Kasich 0.5%, Jon Huntsman Jr. 0%, Rick Santorum 0%, Undecided 32%, Refused 3.5%, Other 2% |
| Suffolk University Margin of error: ± 8% Sample size: 129 | August 16–19, 2014 | Mitt Romney 38.76% | Mike Huckabee 13.95% | Jeb Bush 10.08% | Chris Christie 6.2%, Scott Walker 3.88%, Rand Paul 3.1%, Rick Perry 2.33%, Marco Rubio 2.33%, Paul Ryan 2.33%, Ted Cruz 1.55%, Jon Huntsman Jr. 0.78%, Bobby Jindal 0%, John Kasich 0%, Rick Santorum 0%, Undecided 11.63%, Refused 3.1% |
| Civitas Institute Margin of error: ± 5.3% Sample size: 336 | July 28–29, 2014 | Jeb Bush 16% | Chris Christie 9% | Rand Paul 9% | Marco Rubio 8%, Ted Cruz 7%, Rick Perry 7%, Bobby Jindal 3%, Rick Santorum 3%, Scott Walker 3%, Undecided 22%, Won't vote in Republican primary 11%, Other 1%, Refused 1% |
| Public Policy Polling Margin of error: ± 4.9% Sample size: 394 | May 9–11, 2014 | Jeb Bush 17% | Mike Huckabee 17% | Chris Christie 12% | Ted Cruz 12%, Rand Paul 12%, Paul Ryan 8%, Marco Rubio 5%, Scott Walker 5%, Bobby Jindal 2%, Someone else/Not sure 11% |
| Public Policy Polling Margin of error: ± 3.7% Sample size: 694 | April 26–28, 2014 | Mike Huckabee 19% | Ted Cruz 17% | Jeb Bush 15% | Rand Paul 15%, Chris Christie 9%, Paul Ryan 6%, Marco Rubio 5%, Bobby Jindal 4%, Cliven Bundy 3%, Someone Else/Undecided 6% |
| Magellan Strategies Margin of error: ± 6% Sample size: 300 | April 14–15, 2014 | Mike Huckabee 21% | Jeb Bush 19% | Rand Paul 15% | Chris Christie 12%, Ted Cruz 11%, Marco Rubio 6%, John Kasich 3%, Scott Walker 2%, Undecided 11% |
| Public Policy Polling Margin of error: ± 5.5% Sample size: 314 | April 3–6, 2014 | Mike Huckabee 22% | Jeb Bush 18% | Chris Christie 12% | Ted Cruz 12%, Rand Paul 9%, Paul Ryan 9%, Scott Walker 7%, Marco Rubio 5%, Bobby Jindal 2% Someone Else/Undecided 6% |
| Public Policy Polling Margin of error: ± 5% Sample size: 392 | March 6–9, 2014 | Mike Huckabee 19% | Chris Christie 15% | Ted Cruz 14% | Jeb Bush 12%, Rand Paul 12%, Scott Walker 6%, Marco Rubio 5%, Paul Ryan 4%, Bobby Jindal 1%, Someone Else/Undecided 12% |
| Public Policy Polling Margin of error: ± 5.6% Sample size: 305 | February 6–9, 2014 | Mike Huckabee 20% | Jeb Bush 15% | Rand Paul 14% | Chris Christie 11%, Ted Cruz 8%, Paul Ryan 8%, Marco Rubio 7%, Scott Walker 4%, Bobby Jindal 3%, Someone Else/Undecided 9% |
| Public Policy Polling Margin of error: ± 4.1% Sample size: 575 | January 9–12, 2014 | Chris Christie 17% | Jeb Bush 14% | Rand Paul 14% | Ted Cruz 11%, Paul Ryan 11%, Marco Rubio 9%, Bobby Jindal 5%, Rick Santorum 4%, Scott Walker 3%, Someone Else/Undecided 13% |
| Public Policy Polling Margin of error: ± 4.3% Sample size: 529 | December 5–8, 2013 | Chris Christie 19% | Jeb Bush 15% | Rand Paul 13% | Ted Cruz 12%, Marco Rubio 10%, Paul Ryan 7%, Rick Santorum 5%, Scott Walker 5%, Bobby Jindal 3%, Someone Else/Undecided 11% |
| Public Policy Polling Margin of error: ± 4.4% Sample size: 498 | November 8–11, 2013 | Chris Christie 20% | Jeb Bush 16% | Ted Cruz 12% | Rand Paul 12%, Marco Rubio 10%, Paul Ryan 7%, Bobby Jindal 6%, Rick Santorum 2%, Scott Walker 1%, Someone Else/Undecided 13% |

## Ohio

Winner: John Kasich Primary date: March 15, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Primary results | March 15, 2016 | John Kasich 46.95% | Donald Trump 35.87% | Ted Cruz 13.31% | Marco Rubio 2.34%, Ben Carson 0.72%, Jeb Bush 0.27%, Mike Huckabee 0.25%, Chris Christie 0.12%, Carly Fiorina 0.11%, Rick Santorum 0.07% |
| ARG Margin of error: ± 5% Sample size: 400 | March 12–13, 2016 | John Kasich 44% | Donald Trump 38% | Ted Cruz 12% | Marco Rubio 2%, Undecided 4% |
| Monmouth University Margin of error: ± 4.4% Sample size: 503 | March 11–13, 2016 | John Kasich 40% | Donald Trump 35% | Ted Cruz 15% | Marco Rubio 5%, Other 1%, Undecided 4% |
| Quinnipiac University Margin of error: ± 3.7% Sample size: 721 | March 8–13, 2016 | Donald Trump 38% | John Kasich 38% | Ted Cruz 16% | Marco Rubio 3%, Undecided 4% |
| CBS News/YouGov Margin of error: ± 4.4% Sample size: 798 | March 9–11, 2016 | John Kasich 33% | Donald Trump 33% | Ted Cruz 27% | Marco Rubio 5%, No Preference 2% |
| NBC News/WSJ/Marist Margin of error: ± 4.1% Sample size: 564 | March 4–10, 2016 | John Kasich 39% | Donald Trump 33% | Ted Cruz 19% | Marco Rubio 6% |
| Fox News Margin of error: ± 3.5% Sample size: 806 | March 5–8, 2016 | John Kasich 34% | Donald Trump 29% | Ted Cruz 19% | Marco Rubio 7%, Undecided 5%, Other 3%, None of the above 2% |
| Quinnipiac University Margin of error: ± 3.7% Sample size: 685 | March 2–7, 2016 | Donald Trump 38% | John Kasich 32% | Ted Cruz 16% | Marco Rubio 9%, Undecided 5% |
| Public Policy Polling Margin of error: ± 3.9% Sample size: 638 | March 4–6, 2016 | Donald Trump 38% | John Kasich 35% | Ted Cruz 15% | Marco Rubio 5%, Undecided 5% |
| CNN/ORC Margin of error: ± 5% Sample size: 359 | March 2–6, 2016 | Donald Trump 41% | John Kasich 35% | Ted Cruz 15% | Marco Rubio 7% |
| Quinnipiac University Margin of error: ± 3.6% Sample size: 759 | February 16–20, 2016 | Donald Trump 31% | John Kasich 26% | Ted Cruz 21% | Marco Rubio 13%, Ben Carson 5%, Someone else 0%, DK/NA 5% |
| Baldwin Wallace University Margin of error: ± 5% Sample size: 440 | February 11–20, 2016 | Donald Trump 31% | John Kasich 29% | Ted Cruz 11% | Marco Rubio 10%, Ben Carson 8%, Jeb Bush 3%, Don't Know 8% |
| Quinnipiac University Margin of error: ± 4.7% Sample size: 433 | September 25 – October 5, 2015 | Donald Trump 23% | Ben Carson 18% | John Kasich 13% | Ted Cruz 11%, Carly Fiorina 10%, Marco Rubio 7%, Jeb Bush 4%, Rand Paul 3%, Mike Huckabee 2%, Chris Christie 1%, Jim Gilmore 0%, George Pataki 0%, Bobby Jindal 0%, Rick Santorum 0%, Lindsey Graham 0%, Someone else 0%, Would not vote 2%, DK/NA 6% |
| Quinnipiac University Margin of error: ± 5.1% Sample size: 371 | August 7–18, 2015 | John Kasich 27% | Donald Trump 21% | Ted Cruz 7% | Marco Rubio 7%, Ben Carson 6%, Carly Fiorina 5%, Jeb Bush 5%, Mike Huckabee 3%, Scott Walker 2%, Rick Santorum 2%, Rand Paul 2%, Chris Christie 1%, Bobby Jindal 0%, Rick Perry 0%, Lindsey Graham 0%, Don't know 11% |
| Quinnipiac University Margin of error: ± 4.8% Sample size: 413 | June 4–15, 2015 | John Kasich 19% | Jeb Bush 9% | Scott Walker 8% | Marco Rubio 7%, Rand Paul 7%, Mike Huckabee 7%, Ben Carson 6%, Ted Cruz 6%, Chris Christie 3%, Lindsey Graham 2%, Rick Perry 2%, Rick Santorum 2%, Carly Fiorina 1%, Donald Trump 1%, Bobby Jindal 0%, Someone else 1%, Wouldn't vote 1%, Don't know 17% |
| Public Policy Polling Margin of error: ± 4.8% Sample size: 411 | June 4–7, 2015 | John Kasich 19% | Ben Carson 13% | Scott Walker 13% | Jeb Bush 12%, Marco Rubio 12%, Rand Paul 9%, Mike Huckabee 6%, Ted Cruz 5%, Chris Christie 4%, Someone Else/Not Sure 8% |
| Quinnipiac University Margin of error: ± 4.9% Sample size: 404 | March 17–28, 2015 | John Kasich 20% | Ted Cruz 9% | Mike Huckbee 9% | Scott Walker 9%, Jeb Bush 8%, Ben Carson 8%, Rand Paul 7%, Chris Christie 5%, Marco Rubio 5%, Bobby Jindal 1%, Rick Perry 1%, Rick Santorum 1%, Lindsey Graham 0%, Someone else 1%, Wouldn't vote 1% Undecided 15% |
| Quinnipiac University Margin of error: ± 4.9% Sample size: 404 | March 17–28, 2015 | John Kasich 22% | Scott Walker 10% | Ted Cruz 9% | Mike Huckabee 9%, Ben Carson 8%, Rand Paul 7%, Chris Christie 6%, Marco Rubio 6%, Rick Perry 2%, Bobby Jindal 1%, Rick Santorum 1%, Lindsey Graham 0%, Someone else 1%, Wouldn't vote 1% Undecided 17% |
| Quinnipiac University Margin of error: ± 4.9% Sample size: 404 | March 17–28, 2015 | John Kasich 22% | Ted Cruz 11% | Jeb Bush 9% | Ben Carson 9%, Mike Huckabee 9%, Rand Paul 7%, Marco Rubio 6%, Chris Christie 5%, Bobby Jindal 2%, Rick Perry 1%, Rick Santorum 1%, Lindsey Graham 0%, Someone else 1%, Wouldn't vote 1% Undecided 15% |
| Quinnipiac University Margin of error: ± 5.3% Sample size: 337 | January 22 – February 1, 2015 | Mitt Romney 15% | John Kasich 11% | Scott Walker 10% | Jeb Bush 9%, Rand Paul 8%, Ben Carson 7%, Ted Cruz 5%, Mike Huckabee 5%, Chris Christie 4%, Marco Rubio 3%, Bobby Jindal 1%, Rick Perry 0%, Rick Santorum 0%, Other 2%, Wouldn't vote 2%, Undecided 18% |
| Quinnipiac University Margin of error: ± 5.3% Sample size: 337 | January 22 – February 1, 2015 | John Kasich 14% | Scott Walker 11% | Jeb Bush 10% | Rand Paul 10%, Ben Carson 8%, Mike Huckabee 7%, Ted Cruz 6%, Chris Christie 6%, Marco Rubio 4%, Bobby Jindal 1%, Rick Perry 1%, Rick Santorum 1%, Other 2%, Wouldn't vote 2%, Undecided 20% |
| Magellan Strategies Margin of error: ± 6% Sample size: 300 | April 14–15, 2014 | Mike Huckabee 17% | Rand Paul 15% | Jeb Bush 13% | Chris Christie 13%, Ted Cruz 12%, John Kasich 10%, Marco Rubio 5%, Scott Walker 4%, Undecided 11% |
| Public Policy Polling Margin of error: ± 5.2% Sample size: 357 | Aug. 16–19, 2013 | Chris Christie 17% | Rand Paul 17% | Jeb Bush 10% | Marco Rubio 9%, John Kasich 8%, Paul Ryan 8%, Ted Cruz 6%, Bobby Jindal 4%, Rick Santorum 4%, Someone Else/Undecided 17% |

## Oklahoma

Winner: Ted Cruz Primary date: March 1, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Primary results | March 1, 2016 | Ted Cruz 34.37% | Donald Trump 28.32% | Marco Rubio 26.01% | Ben Carson 6.22%, John Kasich 3.59%, Jeb Bush 0.45%, Rand Paul 0.36%, Mike Huckabee 0.28%, Carly Fiorina 0.13%, Chris Christie 0.12%, Rick Santorum 0.08%, Lindsey Graham 0.05% |
| SurveyMonkey Margin of error: ± ?% Sample size: 636 | February 22–29, 2016 | Donald Trump 34% | Ted Cruz 19% | Marco Rubio 19% | Ben Carson 14%, John Kasich 7%, Undecided 8% |
| Monmouth University Margin of error: ± 4.9% Sample size: 403 | February 25–28, 2016 | Donald Trump 35% | Ted Cruz 23% | Marco Rubio 22% | John Kasich 8%, Ben Carson 7%, Other 1%, Undecided 4% |
| SoonerPoll Margin of error: ± 4.21% Sample size: 540 | February 23–25, 2016 | Donald Trump 34% | Marco Rubio 21% | Ted Cruz 18% | Ben Carson 9%, John Kasich 6%, Undecided 13% |
| The Oklahoman Margin of error: ± 4.9% Sample size: 400 | February 22–23, 2016 | Donald Trump 29% | Marco Rubio 21% | Ted Cruz 20% | Ben Carson 6%, John Kasich 5%, Other 2%, Undecided 18% |
| SoonerPoll Margin of error: ± 4.81% Sample size: 414 | February 6–9, 2016 | Donald Trump 30.4% | Ted Cruz 25.4% | Marco Rubio 21.0% | Ben Carson 5.6%, Jeb Bush 4.6%, John Kasich 2.9%, Carly Fiorina 1.5%, Chris Christie 1.4%, Jim Gilmore 0.0%, Undecided 7.7% |
| SoonerPoll Margin of error: ± 4.21% Sample size: 541 | January 17–19, 2016 | Donald Trump 35.1% | Ted Cruz 25% | Marco Rubio 9.6% | Ben Carson 7.8%, Jeb Bush 4.4%, Mike Huckabee 4.4%, Chris Christie 3.1%, Rand Paul 2.2%, Carly Fiorina 1.3%, Other 2.2%, Undecided 4.8% |
| SoonerPoll Margin of error: ± 5.1% Sample size: 389 | November 12–15, 2015 | Donald Trump 27.1% | Ted Cruz 18.3% | Ben Carson 17.5% | Marco Rubio 16.3%, Mike Huckabee 4.3%, Carly Fiorina 2.3%, Jeb Bush 2.2%, Rand Paul 2.2%, John Kasich 0.5%, Other 2.5%, Undecided 6.7% |
| The Oklahoman Margin of error: ± 4.3% Sample size: 500 | October 19–22, 2015 | Ben Carson 25% | Donald Trump 19% | Marco Rubio 9% | Ted Cruz 7%, Mike Huckabee 4%, Jeb Bush 3%, Carly Fiorina 2%, John Kasich 2%, Chris Christie 1%, Rand Paul 1%, Bobby Jindal 0%, Rick Santorum 0%, Lindsey Graham 0%, George Pataki 0%, Undecided 27% |
| Opinion Savvy/Insider Advantage Margin of error: ± 4.8% Sample size: 402 | August 2, 2015 | Donald Trump 35.8% | Jeb Bush 13.6% | Ben Carson 10.1% | Ted Cruz 7.3%, Mike Huckabee 6.8%, Scott Walker 5.8%, Rand Paul 3.4%, Chris Christie 3.3%, Carly Fiorina 3%, Marco Rubio 2.6%, John Kasich 2.3%, Rick Perry 1.6%, Bobby Jindal 1.2%, Rick Santorum 1.1%, Lindsey Graham 0.4%, George Pataki 0%, Someone else 0.7%, Undecided 1.1% |
| Harper Polling Margin of error: ± 3.91% Sample size: 627 | Jan. 30 – Feb 1, 2014 | Ted Cruz 19% | Rand Paul 15% | Chris Christie 11% | Paul Ryan 11%, Marco Rubio 9%, Bobby Jindal 6%, Rick Santorum 5%, Scott Walker 4%, Undecided 19% |

## Oregon

Winner: Donald Trump Primary date: May 17, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Primary results | May 17, 2016 | Donald Trump 64.51% | Ted Cruz 16.50% | John Kasich 15.83% | |
| DHM Research/Oregon Public Broadcasting/Fox 12 Margin of error: ± 5.7% Sample size: 324 | May 6–9, 2016 | Donald Trump 45% | Ted Cruz 14% | John Kasich 14% | Undecided 19%, Wouldn't Vote 7% |
| Hoffman Research Margin of error: ± 4.16% Sample size: 555 | April 26–27, 2016 | Donald Trump 43% | Ted Cruz 26% | John Kasich 17% | Undecided 13% |
| DHM Research Margin of error: ± 7.7% Sample size: 169 | July 22–27, 2015 | Donald Trump 18% | Scott Walker 12% | Jeb Bush 11% | Ted Cruz 10%, Ben Carson 9%, Rand Paul 6%, Mike Huckabee 6%, John Kasich 4%, Marco Rubio 3%, Chris Christie 2%, Carly Fiorina 2%, Rick Santorum 2%, Bobby Jindal 1%, Rick Perry 1%, Lindsey Graham 0%, Jim Gilmore 0%, George Pataki 0%, Other 2%, DK 12% |
| Public Policy Polling Margin of error: ± 5.1% Sample size: 375 | May 22–27, 2014 | Mike Huckabee 21% | Ted Cruz 16% | Jeb Bush 15% | Rand Paul 15%, Chris Christie 12%, Marco Rubio 4%, Paul Ryan 3%, Scott Walker 3%, Rick Santorum 2%, Someone else/Not sure 10% |

## Pennsylvania

Winner: Donald Trump Primary date: April 26, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Primary results | April 26, 2016 | Donald Trump 56.71% | Ted Cruz 21.66% | John Kasich 19.36% | Ben Carson 0.93%, Marco Rubio 0.75%, Jeb Bush 0.60% |
| Fox 29/Opinion Savvy Margin of error: ± 3% Sample size: 1050 | April 22–24, 2016 | Donald Trump 48% | Ted Cruz 28% | John Kasich 19% | Undecided 5% |
| Public Policy Polling Margin of error: ± 3.4% Sample size: 826 | April 22–24, 2016 | Donald Trump 51% | Ted Cruz 25% | John Kasich 22% | Undecided 3% |
| ARG Margin of error: ± 5 Sample size: 400 | April 21–24, 2016 | Donald Trump 50% | Ted Cruz 23% | John Kasich 21% | Undecided 6% |
| CBS News/YouGov Margin of error: ± 4.6% Sample size: 934 | April 20–22, 2016 | Donald Trump 49% | Ted Cruz 26% | John Kasich 22% | Undecided 3% |
| NBC News/Wall Street Journal/Marist College Margin of error: ± 4.1% Sample size: 571 | April 18–20, 2016 | Donald Trump 45% | Ted Cruz 27% | John Kasich 24% | Other 3%, Undecided 3% |
| Franklin & Marshall College Margin of error: ± 4.0% Sample size: 549 | April 11–18, 2016 | Donald Trump 40% | Ted Cruz 26% | John Kasich 24% | Undecided 10% |
| CBS News/YouGov Margin of error: ± 4.8% Sample size: 837 | April 13–15, 2016 | Donald Trump 46% | Ted Cruz 26% | John Kasich 23% | Undecided 4% |
| Monmouth University Margin of error: ± 5.6% Sample size: 303 | April 10–12, 2016 | Donald Trump 44% | Ted Cruz 28% | John Kasich 23% | Undecided 6% |
| Morning Call/Muhlenberg College Margin of error: ± 5.5% Sample size: 422 | April 7–12, 2016 | Donald Trump 41% | John Kasich 26% | Ted Cruz 23% | Other 3%, Undecided 8% |
| Fox News Margin of error: ± 3.5% Sample size: 802 | April 4–7, 2016 | Donald Trump 48% | John Kasich 22% | Ted Cruz 20% | Other 1%, Not Sure 8% |
| Muhlenberg College Margin of error: ± 6% Sample size: 360 | April 1–6, 2016 | Donald Trump 35% | Ted Cruz 28% | John Kasich 27% | Other/Neither 5%, Not Sure 5% |
| Quinnipiac University Margin of error: ± 4.1% Sample size: 578 | March 30-April 4, 2016 | Donald Trump 39% | Ted Cruz 30% | John Kasich 24% | Undecided 7% |
| CBS News/YouGov Margin of error: ± 5.0% Sample size: 729 | March 29-April 1, 2016 | Donald Trump 47% | Ted Cruz 29% | John Kasich 22% | Other/Undecided 2% |
| Franklin & Marshall College Margin of error: ± 5.4% Sample size: 312 | March 14–20, 2016 | Donald Trump 33% | John Kasich 30% | Ted Cruz 20% | Undecided 17% |
| Harper Polling Margin of error: ± 5.22% Sample size: 353 | March 1–2, 2016 | Donald Trump 36% | Marco Rubio 19% | Ted Cruz 17% | Ben Carson 11%, John Kasich 10%, Undecided 8% |
| Franklin & Marshall College Margin of error: ± ?% Sample size: 371 | February 13–21, 2016 | Donald Trump 22% | Marco Rubio 16% | John Kasich 15% | Ted Cruz 12%, Ben Carson 6%, Jeb Bush 4%, Don't know 25% |
| Robert Morris University Margin of error: ± ?% Sample size: 177 | February 11–16, 2016 | Donald Trump 41% | Marco Rubio 15% | Ted Cruz 15% | John Kasich 9%, Ben Carson 8%, Jeb Bush 4%, Undecided 9% |
| Franklin & Marshall College Margin of error: ± ?% Sample size: 276 | January 18–23, 2016 | Donald Trump 24% | Ted Cruz 14% | Marco Rubio 11% | Ben Carson 5%, Jeb Bush 5%, Chris Christie 5%, John Kasich 3%, Carly Fiorina 2%, Mike Huckabee 2%, Rand Paul 2%, Rick Santorum 1%, Don't know 26% |
| Franklin & Marshall College Margin of error: ± ?% Sample size: 231 | October 19–25, 2015 | Donald Trump 23% | Ben Carson 22% | Marco Rubio 13% | John Kasich 6%, Ted Cruz 4%, Chris Christie 3%, Jeb Bush 3%, Carly Fiorina 3%, Mike Huckabee 1%, Bobby Jindal 1%, Rand Paul 1%, Rick Santorum 1%, Lindsey Graham <0%, George Pataki <0%, Don't know 20% |
| Public Policy Polling Margin of error: ± 4.5% Sample size: 479 | October 8–11, 2015 | Donald Trump 24% | Ben Carson 23% | Ted Cruz 9% | Carly Fiorina 9%, Chris Christie 7%, Jeb Bush 7%, Marco Rubio 6%, Mike Huckabee 3%, John Kasich 3%, Rick Santorum 2%, Jim Gilmore 1%, Rand Paul 1%, George Pataki 1%, Bobby Jindal 0%, Lindsey Graham 0%, Undecided 4% |
| Quinnipiac University Margin of error: ± 4.7% Sample size: 427 | September 25 – October 5, 2015 | Donald Trump 23% | Ben Carson 17% | Marco Rubio 12% | Carly Fiorina 8%, Ted Cruz 6%, Chris Christie 5%, Jeb Bush 4%, Mike Huckabee 4%, John Kasich 3%, Rick Santorum 2%, Rand Paul 1%, Bobby Jindal 1%, George Pataki 1%, Lindsey Graham 0%, Jim Gilmore 0%, Would not vote 1%, Someone else 0%, DK/NA 12% |
| Mercyhurst Margin of error: ± 4.5% Sample size: 483 | September 21 – October 1, 2015 | Donald Trump 18% | Ben Carson 18% | Jeb Bush 9% | Carly Fiorina 8%, Ted Cruz 4%, Marco Rubio 4%, Chris Christie 4%, Rand Paul 3%, Rick Santorum 3%, John Kasich 3%, Mike Huckabee 3%, Others 2%, Undecided 17%, Refused 1% |
| Quinnipiac University Margin of error: ± 4.7% Sample size: 443 | August 7–18, 2015 | Donald Trump 24% | Ben Carson 13% | Marco Rubio 10% | Carly Fiorina 7%, Jeb Bush 6%, Ted Cruz 5%, Scott Walker 5%, Rand Paul 5%, Rick Santorum 4%, John Kasich 3%, Mike Huckabee 2%, Chris Christie 2%, Bobby Jindal 1%, Rick Perry 0%, Lindsey Graham 0%, Someone else 1%, Wouldn't vote 2%, Don't know 9% |
| Quinnipiac University Margin of error: ± 4.8% Sample size: 413 | June 4–15, 2015 | Marco Rubio 12% | Rand Paul 11% | Jeb Bush 10% | Ben Carson 10%, Scott Walker 9%, Rick Santorum 7%, Chris Christie 6%, Mike Huckabee 6%, Ted Cruz 5%, Donald Trump 4%, Carly Fiorina 1%, Lindsey Graham 1%, John Kasich 1%, Rick Perry 1%, Bobby Jindal 0%, Someone else 2%, Wouldn't vote 1%, Don't know 13% |
| Public Policy Polling Margin of error: ± 5.4% Sample size: 334 | May 21–24, 2015 | Scott Walker 17% | Ben Carson 12% | Chris Christie 12% | Rick Santorum 12%, Mike Huckabee 11%, Jeb Bush 9%, Marco Rubio 9%, Ted Cruz 6%, Rand Paul 6%, Someone else/Not sure 6% |
| Quinnipiac University Margin of error: ± 4.7% Sample size: 442 | March 17–28, 2015 | Scott Walker 14% | Jeb Bush 9% | Ben Carson 9% | Rick Santorum 9%, Ted Cruz 7%, Marco Rubio 7%, Mike Huckabee 6%, Rand Paul 6%, Chris Christie 5%, Rick Perry 3%, John Kasich 2%, Bobby Jindal 1%, Lindsey Graham 0% Someone else 0%, Wouldn't vote 4% Undecided 18% |
| Quinnipiac University Margin of error: ± 4.7% Sample size: 442 | March 17–28, 2015 | Scott Walker 14% | Ben Carson 9% | Rick Santorum 9% | Ted Cruz 8%, Rand Paul 8%, Marco Rubio 8%, Chris Christie 6%, Mike Huckabee 6%, Rick Perry 3%, Bobby Jindal 2%, John Kasich 2%, Lindsey Graham 1%, Someone else 0%, Wouldn't vote 4%, Undecided 20% |
| Quinnipiac University Margin of error: ± 4.7% Sample size: 442 | March 17–28, 2015 | Ben Carson 11% | Jeb Bush 10% | Ted Cruz 10% | Marco Rubio 9%, Scott Walker 9%, Mike Huckabee 7%, Rand Paul 7%, Chris Christie 5%, Rick Perry 3%, Bobby Jindal 2%, John Kasich 2%, Lindsey Graham 1%, Someone else 2%, Wouldn't vote 4%, Undecided 19% |
| Quinnipiac University Margin of error: ± 5.3% Sample size: 342 | January 22 – February 1, 2015 | Mitt Romney 12% | Jeb Bush 10% | Chris Christie 10% | Mike Huckabee 9%, Ben Carson 8%, Rick Santorum 6%, Scott Walker 5%, Ted Cruz 4%, Rand Paul 3%, Marco Rubio 3%, Bobby Jindal 2%, John Kasich 2%, Rick Perry 1%, Other 2%, Wouldn't vote 2%, Undecided 21% |
| Quinnipiac University Margin of error: ± 5.3% Sample size: 342 | January 22 – February 1, 2015 | Jeb Bush 12% | Chris Christie 11% | Mike Huckabee 10% | Ben Carson 8%, Rick Santorum 8%, Ted Cruz 6%, Scott Walker 6%, Marco Rubio 4%, John Kasich 3%, Rand Paul 3%, Bobby Jindal 2%, Rick Perry 1%, Other 2%, Wouldn't vote 2%, Undecided 22% |
| Public Policy Polling Margin of error: ± 4% Sample size: 592 | January 15–18, 2015 | Ben Carson 18% | Jeb Bush 14% | Mitt Romney 14% | Chris Christie 9%, Ted Cruz 9%, Mike Huckabee 9%, Scott Walker 8%, Rand Paul 7%, Rick Santorum 6%, Someone else/Not sure 6% |
| Public Policy Polling Margin of error: ± 4% Sample size: 592 | January 15–18, 2015 | Ben Carson 19% | Jeb Bush 18% | Chris Christie 12% | Ted Cruz 10%, Mike Huckabee 10%, Scott Walker 9%, Rand Paul 8%, Rick Santorum 8%, Someone else/Not sure 7% |
| Public Policy Polling Margin of error: ± 5.4% Sample size: 333 | May 30 – June 1, 2014 | Chris Christie 23% | Mike Huckabee 14% | Rand Paul 12% | Jeb Bush 10%, Ted Cruz 10%, Rick Santorum 8%, Marco Rubio 6%, Paul Ryan 4%, Scott Walker 3%, Someone else/Not sure 9% |
| Public Policy Polling Margin of error: ± 4.4% Sample size: 491 | November 22–25, 2013 | Chris Christie 26% | Ted Cruz 16% | Rand Paul 14% | Jeb Bush 10%, Rick Santorum 8%, Marco Rubio 6%, Paul Ryan 5%, Bobby Jindal 3%, Scott Walker 3%, Someone Else/Undecided 9% |
| Public Policy Polling Margin of error: ± 5.1% Sample size: 373 | March 8–10, 2013 | Chris Christie 20% | Rand Paul 17% | Marco Rubio 17% | Jeb Bush 10%, Rick Santorum 10%, Mike Huckabee 9%, Paul Ryan 6%, Bobby Jindal 4%, Rick Perry 1%, Someone Else/Undecided 6% |

## Rhode Island

Winner: Donald Trump Primary date: April 26, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Primary results | April 26, 2016 | Donald Trump 62.92% | John Kasich 24.01% | Ted Cruz 10.29% | Marco Rubio 0.61% |
| Gravis Marketing Margin of error: ± 4.0% Sample size: 566 | April 23–24, 2016 | Donald Trump 58% | John Kasich 21% | Ted Cruz 10% | Undecided 11% |
| Public Policy Polling Margin of error: ± 4.3% Sample size: 511 | April 22–24, 2016 | Donald Trump 61% | John Kasich 23% | Ted Cruz 13% | Undecided 2% |
| Brown University Margin of error: ± 7.0% Sample size: 164 | April 19–21, 2016 | Donald Trump 38% | John Kasich 25% | Ted Cruz 14% | Undecided 17%, Other 6% |
| Brown University Margin of error: ± ?% Sample size: 206 | February 22–23, 2016 | Donald Trump 43% | Marco Rubio 25% | John Kasich 14% | Ted Cruz 10%, Ben Carson 3%, Undecided 5% |
| Brown University Margin of error: ± ?% Sample size: 204 | February 17–20, 2016 | Donald Trump 41% | Marco Rubio 14% | John Kasich 12% | Ted Cruz 8%, Jeb Bush 7%, Ben Carson 4%, Other 1%, Undecided 13% |

## South Carolina

Winner: Donald Trump Primary date: February 20, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Primary results | February 20, 2016 | Donald Trump 32.51% | Marco Rubio 22.48% | Ted Cruz 22.33% | Jeb Bush 7.84%, John Kasich 7.61%, Ben Carson 7.23% |
| Opinion Savvy/ Augusta Chronicle Margin of error: ± 3.5% Sample size: 780 | February 18–19, 2016 | Donald Trump 26.9% | Marco Rubio 24.1% | Ted Cruz 18.8% | Jeb Bush 10.6%, Ben Carson 8.2%, John Kasich 7.5%, Undecided 3.9% |
| South Carolina House GOP Margin of error: ± 2.0% Sample size: 3500 | February 18, 2016 | Donald Trump 33.51% | Ted Cruz 18.96% | Marco Rubio 18.07% | Jeb Bush 11.56%, John Kasich 8.49%, Ben Carson 5.22%, Undecided 4.19% |
| National Research Margin of error: ± ?% Sample size: 500 | February 17–18, 2016 | Donald Trump 32% | Ted Cruz 19% | Marco Rubio 18% | Jeb Bush 8%, John Kasich 7%, Ben Carson 6%, Refused 2%, Undecided 7% |
| ARG Margin of error: ± 5.0% Sample size: 401 | February 17–18, 2016 | Donald Trump 34% | Marco Rubio 22% | John Kasich 14% | Ted Cruz 13%, Jeb Bush 9%, Ben Carson 4%, Other 1%, Undecided 3% |
| Emerson College Margin of error: ± 4.7% Sample size: 418 | February 16–18, 2016 | Donald Trump 36% | Ted Cruz 19% | Marco Rubio 18% | John Kasich 10%, Jeb Bush 10%, Ben Carson 6% |
| Clemson University Margin of error: ± 3.0% Sample size: 650 | February 14–18, 2016 | Donald Trump 28% | Ted Cruz 19% | Marco Rubio 15% | Jeb Bush 10%, John Kasich 9%, Ben Carson 6%, Undecided 13% |
| ARG Margin of error: ± 5.0% Sample size: 400 | February 16–17, 2016 | Donald Trump 33% | Marco Rubio 20% | John Kasich 15% | Ted Cruz 13%, Jeb Bush 8%, Ben Carson 3%, Other 1%, Undecided 7% |
| Harper Polling Margin of error: ± 4% Sample size: 599 | February 16–17, 2016 | Donald Trump 29% | Ted Cruz 17% | Marco Rubio 15% | Jeb Bush 14%, John Kasich 13%, Ben Carson 8%, Undecided 5% |
| NBC News/Wall Street Journal/Marist College Margin of error: ± 3.6% Sample size: 722 | February 15–17, 2016 | Donald Trump 28% | Ted Cruz 23% | Marco Rubio 15% | Jeb Bush 13%, Ben Carson 9%, John Kasich 9%, Undecided 5% |
| Fox News Margin of error: ± 3.5% Sample size: 759 | February 15–17, 2016 | Donald Trump 32% | Ted Cruz 19% | Marco Rubio 15% | Jeb Bush 9%, Ben Carson 9%, John Kasich 6%, Other 1%, Undecided 8% |
| Emerson College Margin of error: ± 5.0% Sample size: 315 | February 15–16, 2016 | Donald Trump 33% | Ted Cruz 20% | Marco Rubio 19% | John Kasich 9%, Jeb Bush 9%, Ben Carson 5%, Other 1%, Undecided 4% |
| ARG Margin of error: ± 5.0% Sample size: 400 | February 14–16, 2016 | Donald Trump 33% | Marco Rubio 16% | Ted Cruz 14% | John Kasich 14%, Jeb Bush 9%, Ben Carson 3%, Other 2%, Undecided 8% |
| Monmouth University Margin of error: ± 4.9% Sample size: 400 | February 14–16, 2016 | Donald Trump 35% | Ted Cruz 19% | Marco Rubio 17% | John Kasich 9%, Jeb Bush 8%, Ben Carson 7%, Undecided 5% |
| Bloomberg/Selzer Margin of error: ± 4.4% Sample size: 502 | February 13–16, 2016 | Donald Trump 36% | Ted Cruz 17% | Marco Rubio 15% | Jeb Bush 13%, Ben Carson 9%, John Kasich 7%, Undecided 3% |
| Public Policy Polling Margin of error: ± 3.3% Sample size: 897 | February 14–15, 2016 | Donald Trump 35% | Ted Cruz 18% | Marco Rubio 18% | John Kasich 10%, Jeb Bush 7%, Ben Carson 7%, Undecided 6% |
| South Carolina House GOP Margin of error: ± 2.4% Sample size: 1700 | February 15, 2016 | Donald Trump 33.57% | Ted Cruz 15.54% | Marco Rubio 14.83% | Jeb Bush 14.54%, John Kasich 7.98%, Ben Carson 6.55%, Undecided 7.03% |
| CNN/ORC Margin of error: ± 5% Sample size: 404 | February 10–15, 2016 | Donald Trump 38% | Ted Cruz 22% | Marco Rubio 14% | Jeb Bush 10%, Ben Carson 6%, John Kasich 4%, Jim Gilmore 1%, Someone Else 1%, Undecided 1%, No Opinion 3% |
| ARG Margin of error: ± 5.0% Sample size: 400 | February 12–13, 2016 | Donald Trump 35% | John Kasich 15% | Marco Rubio 14% | Ted Cruz 12%, Jeb Bush 10%, Ben Carson 2%, Other 2%, Undecided 10% |
| South Carolina House GOP Margin of error: ± ?% Sample size: 1200 | February 11–12, 2016 | Donald Trump 34.5% | Ted Cruz 15.5% | Jeb Bush 13% | Marco Rubio 12.5%, John Kasich 8.5%, Ben Carson 5%, Undecided 11% |
| CBS News/YouGov Margin of error: ± 5.2% Sample size: 744 | February 10–12, 2016 | Donald Trump 42% | Ted Cruz 20% | Marco Rubio 15% | John Kasich 9%, Jeb Bush 6%, Ben Carson 6%, Chris Christie 1%, Carly Fiorina 0%, Jim Gilmore 0%, No preference 1% |
| Opinion Savvy/ Augusta Chronicle Margin of error: ± 3.5% Sample size: 779 | February 10–11, 2016 | Donald Trump 36.3% | Ted Cruz 19.6% | Marco Rubio 14.6% | Jeb Bush 10.9%, John Kasich 8.7%, Ben Carson 4.7%, Undecided 5.2% |
| NBC/WSJ/Marist Margin of error: ± 3.7% Sample size: 718 | January 17–23, 2016 | Donald Trump 36% | Ted Cruz 20% | Marco Rubio 14% | Jeb Bush 9%, Ben Carson 8%, Mike Huckabee 2%, Chris Christie 2%, Rand Paul 1%, John Kasich 1%, Carly Fiorina 1%, Other 0%, Undecided 6% |
| CBS/YouGov Margin of error: ± 5.3% Sample size: 804 | January 18–21, 2016 | Donald Trump 40% | Ted Cruz 21% | Marco Rubio 13% | Ben Carson 9%, Jeb Bush 8%, Rand Paul 3%, Mike Huckabee 2%, John Kasich 2%, Chris Christie 1%, Carly Fiorina 1%, Rick Santorum 0%, Jim Gilmore 0%, No Preference 0% |
| Morris News/Opinion Savvy Margin of error: ± 3.7% Sample size: 683 | January 15, 2016 | Donald Trump 32% | Ted Cruz 18% | Jeb Bush 13% | Marco Rubio 11%, Ben Carson 9%, Chris Christie 4%, Carly Fiorina 3%, Mike Huckabee 2%, John Kasich 2%, Rand Paul 2%, Rick Santorum 1%, Undecided 3% |
| Associated Industries of Florida Margin of error: ± 3.9% Sample size: 600 | December 16–17, 2015 | Donald Trump 27% | Ted Cruz 27% | Marco Rubio 12% | Ben Carson 11%, Jeb Bush 7%, Others 5%, Undecided 11% |
| CBS News/YouGov Margin of error: ± 5% Sample size: 1469 | December 14–17, 2015 | Donald Trump 38% | Ted Cruz 23% | Marco Rubio 12% | Ben Carson 9%, Jeb Bush 7%, Rand Paul 4%, John Kasich 2%, Chris Christie 1%, Carly Fiorina 1%, Mike Huckabee 1%, Lindsey Graham 1%, Rick Santorum 0%, George Pataki 0%, Jim Gilmore 0%, No preference 1% |
| Opinion Savvy/Augusta Chronicle Margin of error: ± 4.2% Sample size: 536 | December 16, 2015 | Donald Trump 28.3% | Ted Cruz 21.1% | Marco Rubio 11.6% | Jeb Bush 9.6%, Ben Carson 9.5%, Chris Christie 5.5%, Carly Fiorina 4.6%, Rand Paul 2.6%, Mike Huckabee 2.1%, Lindsey Graham 1.9%, John Kasich 1.4%, Rick Santorum 0.5%, George Pataki 0.2%, Undecided 1.3% |
| Winthrop University Margin of error: ± 3.4% Sample size: 828 | November 30 – December 7, 2015 | Donald Trump 24% | Ted Cruz 16% | Ben Carson 14% | Marco Rubio 11%, Jeb Bush 9%, Mike Huckabee 2%, Lindsey Graham 2%, Carly Fiorina 1%, Rand Paul 1%, Chris Christie 1%, John Kasich 1%, Rick Santorum 0%, George Pataki 0% |
| Fox News Margin of error: ± 4.5% Sample size: 437 | December 5–8, 2015 | Donald Trump 35% | Ben Carson 15% | Marco Rubio/Ted Cruz 14% | Jeb Bush 5%, Rand Paul 2%, Lindsey Graham 2%, Chris Christie 2%, Carly Fiorina 1%, John Kasich 1%, Mike Huckabee 1%, Rick Santorum 1%, George Pataki 0%, None of the Above 1%, Don't Know 5% |
| CBS News/YouGov Margin of error: ± 5.1% Sample size: ? | November 15–19, 2015 | Donald Trump 35% | Ben Carson 19% | Marco Rubio 16% | Ted Cruz 13%, Jeb Bush 5%, Lindsey Graham 3%, Carly Fiorina 2%, Mike Huckabee 2%, John Kasich 2%, Chris Christie 1%, Rand Paul 1%, Rick Santorum 1%, George Pataki 0%, Bobby Jindal 0%, Jim Gilmore 0% |
| Public Policy Polling Margin of error: ± 3.5% Sample size: 787 | November 7–8, 2015 | Donald Trump 25% | Ben Carson 21% | Ted Cruz 15% | Marco Rubio 13%, Jeb Bush 8%, Carly Fiorina 5%, John Kasich 3%, Lindsey Graham 2%, Mike Huckabee 2%, Rand Paul 1%, Chris Christie 1%, Rick Santorum 1%, Bobby Jindal 0%, Jim Gilmore 0%, George Pataki 0%, Undecided 3% |
| CBS News/YouGov Margin of error: ± 3.4% Sample size: 843 | October 15–23, 2015 | Donald Trump 40% | Ben Carson 23% | Ted Cruz 8% | Marco Rubio 7%, Jeb Bush 6%, Carly Fiorina 3%, Lindsey Graham 2%, Mike Huckabee 2%, John Kasich 2%, Rand Paul 1%, Chris Christie 1%, Bobby Jindal 1%, Rick Santorum 1%, Jim Gilmore 0%, George Pataki 0%, No Preference 5% |
| Clemson-Palmetto Margin of error: ± 4% Sample size: 600 | October 13–23, 2015 | Donald Trump 23% | Ben Carson 19% | Ted Cruz 8% | Carly Fiorina 6%, Jeb Bush 7%, Marco Rubio 5%, Lindsey Graham 3%, Rand Paul 1%, Mike Huckabee 2%, Chris Christie 1%, John Kasich 2%, Bobby Jindal 1%, Rick Santorum 0%, Jim Gilmore 0%, George Pataki 0%, undecided/DK 15% |
| CNN/ORC Margin of error: ± 4.5% Sample size: 521 | October 3–10, 2015 | Donald Trump 36% | Ben Carson 18% | Marco Rubio 9% | Carly Fiorina 7%, Jeb Bush 6%, Ted Cruz 5%, Lindsey Graham 5%, Rand Paul 4%, Mike Huckabee 3%, Chris Christie 2%, John Kasich 1%, Rick Santorum 1%, Jim Gilmore *%, George Pataki *% Bobby Jindal *%, None 1%, No opinion 4% |
| Gravis Marketing Margin of error: ± 3.6% Sample size: 762 | October 1, 2015 | Donald Trump 29.1% | Ben Carson 16.4% | Carly Fiorina 11.1% | Ted Cruz 8.1%, Marco Rubio 8%, Jeb Bush 5.9%, John Kasich 3.5%, Mike Huckabee 3.1%, Lindsey Graham 1.5%, Chris Christie 1.4%, Rand Paul 0.9%, Rick Santorum 0.5%, George Pataki 0.3% Bobby Jindal 0.3%, Unsure 9.9% |
| CBS News/YouGov Margin of error: ± 4.5% Sample size: 1002 | September 3–10, 2015 | Donald Trump 36% | Ben Carson 21% | Ted Cruz 6% | Lindsey Graham 5%, Jeb Bush 5%, John Kasich 4%, Mike Huckabee 3%, Carly Fiorina 3%, Marco Rubio 3%, Scott Walker 3%, Chris Christie 2%, Bobby Jindal 1%, Rick Santorum 1%, Rand Paul 1%, Rick Perry 0%, George Pataki 0%, Jim Gilmore 0%, No preference 5% |
| Public Policy Polling Margin of error: ± 3.6% Sample size: 764 | September 3–6, 2015 | Donald Trump 37% | Ben Carson 21% | Ted Cruz 6% | Jeb Bush 6%, Carly Fiorina 4%, John Kasich 4%, Marco Rubio 4%, Lindsey Graham 3%, Mike Huckabee 3%, Scott Walker 3%, Rand Paul 3%, Rick Santorum 2%, Rick Perry 1%, Chris Christie 1%, Bobby Jindal 1%, George Pataki 0%, Jim Gilmore 0% |
| Monmouth University Margin of error: ± 4.6% Sample size: 453 | August 20–23, 2015 | Donald Trump 30% | Ben Carson 15% | Jeb Bush 9% | Carly Fiorina 6%, Marco Rubio 6%, Ted Cruz 5%, Lindsey Graham 4%, Scott Walker 4%, John Kasich 3%, Mike Huckabee 3%, Rand Paul 3%, Chris Christie 2%, Rick Santorum 1%, Rick Perry 0%, George Pataki 0%, Bobby Jindal 0%, Jim Gilmore 0%, Undecided 11% |
| Opinion Savvy/Insider Advantage Margin of error: ± 4.3% Sample size: 509 | August 3, 2015 | Donald Trump 31.3% | Jeb Bush 13.9% | Ben Carson 9.9% | Mike Huckabee 8.5%, Lindsey Graham 6.5%, Scott Walker 5.8%, Ted Cruz 4.3%, Chris Christie 4.1%, John Kasich 3.1%, Marco Rubio 2.3%, Carly Fiorina 1.8%, Rand Paul 1.7%, Bobby Jindal 0.7%, Rick Perry 0.6%, Rick Santorum 0.1%, George Pataki 0%, Someone else 3.1%, Undecided 2.5% |
| Gravis Marketing Margin of error: ± 4.0% Sample size: 609 | July 29–30, 2015 | Donald Trump 34% | Ben Carson 10.9% | Jeb Bush 10.5% | Scott Walker 10.3%, Marco Rubio 6%, Mike Huckabee 5.5%, Lindsey Graham 4.9%, Ted Cruz 3.4%, John Kasich 3.3%, Chris Christie 2.5%, Rick Perry 2.5%, Carly Fiorina 2.4%, Rick Santorum 1.3%, Rand Paul 1%, Bobby Jindal 0.9%, George Pataki 0.7% |
| Morning Consult Margin of error: ± 5.0% Sample size: 389 | May 31 – June 8, 2015 | Lindsey Graham 14% | Ben Carson 12% | Jeb Bush 11% | Scott Walker 10%, Marco Rubio 8%, Mike Huckabee 7%, Ted Cruz 6%, Chris Christie 5%, Rand Paul 5%, Donald Trump 2%, Carly Fiorina 1%, Don't know/No Opinion/Refused 16%, Someone else 2% |
| Winthrop University Margin of error: ± 3.2% Sample size: 956 | April 4–12, 2015 | Scott Walker 13.6% | Jeb Bush 12.7% | Ted Cruz 8.1% | Lindsey Graham 7.6%, Rand Paul 6.2%, Chris Christie 5%, Ben Carson 4.9%, Mike Huckabee 4.9%, Marco Rubio 4%, Rick Perry 1.9%, Donald Trump 1.9%, Bobby Jindal 0.9%, Rick Santorum 0.3%, John Bolton 0.2%, Other 1.4%, Undecided 25.1% |
| Gravis Marketing Margin of error: ± 3% Sample size: 1,371 | March 26–27, 2015 | Scott Walker 17% | Jeb Bush 16% | Ted Cruz 13% | Lindsey Graham 9%, Mike Huckabee 7%, Chris Christie 6%, Marco Rubio 6%, Rand Paul 5%, Rick Santorum 2%, Carly Fiorina 2%, Undecided 18% |
| Gravis Marketing Margin of error: ± 3% Sample size: 792 | February 24–25, 2015 | Jeb Bush 19% | Scott Walker 17% | Lindsey Graham 12% | Mike Huckabee 10%, Chris Christie 8%, Rand Paul 6%, Marco Rubio 6%, Ted Cruz 2%, Carly Fiorina 2%, Rick Santorum 2%, Undecided 16% |
| Public Policy Polling Margin of error: ± 4.3% Sample size: 525 | February 12–15, 2015 | Jeb Bush 19% | Scott Walker 18% | Ben Carson 13% | Lindsey Graham 13%, Mike Huckabee 12%, Chris Christie 7%, Rand Paul 5%, Ted Cruz 3%, Rick Perry 3%, Other/Undecided 6% |
| NBC News/Marist Margin of error: ± 4.6% Sample size: 450 | February 3–10, 2015 | Lindsey Graham 17% | Jeb Bush 15% | Scott Walker 12% | Ben Carson 10%, Mike Huckabee 10%, Rand Paul 7%, Chris Christie 6%, Rick Perry 4%, Marco Rubio 4%, Rick Santorum 3%, Ted Cruz 1%, Undecided 11% |
| Gravis Marketing Margin of error: ± 3% Sample size: 831 | January 21–22, 2015 | Mitt Romney 20% | Jeb Bush 16% | Scott Walker 9% | Ted Cruz 8%, Mike Huckabee 8%, Rand Paul 7%, Marco Rubio 7%, Chris Christie 5%, Rick Perry 4%, Rick Santorum 4%, Undecided 12% |
| Gravis Marketing Margin of error: ± 3% Sample size: 831 | January 21–22, 2015 | Jeb Bush 18% | Mike Huckabee 11% | Scott Walker 11% | Ted Cruz 9%, Marco Rubio 9%, Chris Christie 8%, Rand Paul 8%, Rick Perry 5%, Rick Santorum 4%, Undecided 17% |
| Clemson University Margin of error: ± 6% Sample size: 400 | May 22–29, 2014 | Jeb Bush 22% | Chris Christie 10% | Ted Cruz 9% | Rand Paul 9%, Marco Rubio 6%, Bobby Jindal 3%, Undecided/Don't know 48% |
| Gravis Marketing Margin of error: ± 4% Sample size: 735 | March 6–7, 2014 | Jeb Bush 22% | Mike Huckabee 19% | Chris Christie 12% | Ted Cruz 8%, Rand Paul 8%, Marco Rubio 6%, Scott Walker 5%, Rick Santorum 2%, Undecided 19% |
| Gravis Marketing Margin of error: ± 4% Sample size: 601 | November 30 – December 2, 2013 | Chris Christie 16.6% | Jeb Bush 16% | Mike Huckabee 15.8% | Ted Cruz 11.1%, Rand Paul 9.7%, Marco Rubio 7.2%, Rick Santorum 2.8%, Scott Walker 2.3%, Undecided 18.5% |
| Harper Polling Margin of error: ± 5.03% Sample size: 379 | October 27–28, 2013 | Chris Christie 19% | Ted Cruz 17% | Rand Paul 13% | Marco Rubio 12%, Paul Ryan 12%, Bobby Jindal 6%, Not sure 21% |

## South Dakota

Winner: Donald Trump Primary date: June 7, 2016
| Poll source | Date | 1st | 2nd | 3rd |
| Primary results | June 7, 2016 | Donald Trump 67.06% | Ted Cruz 16.99% | John Kasich 15.95% |

## Tennessee

Winner: Donald Trump Primary date: March 1, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Primary results | March 1, 2016 | Donald Trump 38.94% | Ted Cruz 24.71% | Marco Rubio 21.18% | Ben Carson 7.59%, John Kasich 5.29%, Jeb Bush 1.12%, Mike Huckabee 0.28%, Rand Paul 0.27%, Chris Christie 0.15%, Carly Fiorina 0.08%, Rick Santorum 0.08%, Jim Gilmore 0.03%, Lindsey Graham 0.03%, George Pataki 0.02% |
| SurveyMonkey Margin of error: ± ?% Sample size: 772 | February 22–29, 2016 | Donald Trump 48% | Marco Rubio 18% | Ted Cruz 15% | Ben Carson 10%, John Kasich 5%, Undecided 4% |
| NBC News/Wall Street Journal/Marist Margin of error: ± 3.8% Sample size: 665 | February 22–25, 2016 | Donald Trump 40% | Ted Cruz 22% | Marco Rubio 19% | Ben Carson 9%, John Kasich 6% |
| Vanderbilt/PSRA Margin of error: 5.6% Sample size: 495 | November 11–23, 2015 | Donald Trump 29% | Ben Carson 25% | Ted Cruz 14% | Marco Rubio 12%, Jeb Bush 6%, Carly Fiorina 2%, Undecided 7%, Other 4%, Wouldn't Vote 1% |
| Opinion Savvy/Insider Advantage Margin of error: 4.6% Sample size: 440 | August 2–3, 2015 | Donald Trump 35.3% | Ben Carson 14.5% | Jeb Bush 11.7% | Mike Huckabee 6.5%, Ted Cruz 6.2%, Scott Walker 5.8%, John Kasich 3.3%, Rand Paul 3%, Marco Rubio 2.8%, Chris Christie 1.7%, Carly Fiorina 1.7%, Bobby Jindal 1.4%, Rick Santorum 0.7%, George Pataki 0.3%, Lindsey Graham 0.2%, Rick Perry 0.2%, Someone else 1.3%, Undecided 3.5% |

## Texas

Winner: Ted Cruz Primary date: March 1, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Primary results | March 1, 2016 | Ted Cruz 43.76% | Donald Trump 26.75% | Marco Rubio 17.74% | John Kasich 4.25%, Ben Carson 4.16%, Jeb Bush 1.25%, Rand Paul 0.28%, Mike Huckabee 0.22%, Chris Christie 0.12%, Carly Fiorina 0.11%, Rick Santorum 0.07%, Lindsey Graham 0.06% |
| SurveyMonkey Margin of error: ± ?% Sample size: 613 | February 22–29, 2016 | Ted Cruz 33% | Donald Trump 31% | Marco Rubio 19% | Ben Carson 9%, John Kasich 5%, Undecided 4% |
| Fox News/Opinion Savvy Margin of error: ± 3.7% Sample size: 712 | February 28, 2016 | Ted Cruz 36.2% | Donald Trump 25.3% | Marco Rubio 19.2% | John Kasich 8.5%, Ben Carson 7.9%, Undecided 2.8% |
| ARG Margin of error: ± 5% Sample size: 400 | February 26–28, 2016 | Ted Cruz 33% | Donald Trump 32% | Marco Rubio 17% | John Kasich 7%, Ben Carson 6%, Undecided 5% |
| Emerson College Margin of error: ± 4.6% Sample size: 449 | February 26–28, 2016 | Ted Cruz 35% | Donald Trump 32% | Marco Rubio 16% | John Kasich 9%, Ben Carson 4% |
| CBS/YouGov Margin of error: ± 5.6% Sample size: 796 | February 22–26, 2016 | Ted Cruz 42% | Donald Trump 31% | Marco Rubio 19% | John Kasich 4%, Ben Carson 4% |
| Monmouth University Margin of error: ± 4.6% Sample size: 456 | February 22–24, 2016 | Ted Cruz 38% | Donald Trump 23% | Marco Rubio 21% | Ben Carson 6%, John Kasich 5%, Other 1%, Undecided 6% |
| Emerson College Margin of error: ± 4.6% Sample size: 446 | February 21–23, 2016 | Ted Cruz 29% | Donald Trump 28% | Marco Rubio 25% | John Kasich 9%, Ben Carson 4%, Other 1%, Undecided 5% |
| NBC News/Wall Street Journal/Marist Margin of error: ± 4.2% Sample size: 537 | February 18–23, 2016 | Ted Cruz 39% | Donald Trump 26% | Marco Rubio 16% | Ben Carson 8%, John Kasich 6% |
| KTVT-CBS 11/ Dixie Strategies Margin of error: ± 3.64% Sample size: 725 | February 22, 2016 | Ted Cruz 33.24% | Donald Trump 24.83% | Marco Rubio 14.76% | John Kasich 8%, Ben Carson 5.79%, Undecided 13.38% |
| TEGNA/SurveyUSA Margin of error: ± 3.9% Sample size: 645 | February 21–22, 2016 | Ted Cruz 32% | Donald Trump 32% | Marco Rubio 17% | John Kasich 6%, Ben Carson 5%, Other 2%, Undecided 5% |
| Austin American-Statesman Margin of error: ± 4% Sample size: 620 | February 19–22, 2016 | Ted Cruz 38% | Donald Trump 26% | Marco Rubio 13% | John Kasich 7%, Ben Carson 6%, Other 2%, Not Sure 7% |
| University of Houston Margin of error: ± 4.8% Sample size: 415 | February 12–22, 2016 | Ted Cruz 35% | Donald Trump 20% | Marco Rubio 8% | Ben Carson 7%, Jeb Bush 5%, John Kasich 4%, Undecided 19%, Refused 2% |
| University of Texas/ Texas Tribune Margin of error: ± 4.21% Sample size: 526 | February 12–19, 2016 | Ted Cruz 37% | Donald Trump 29% | Marco Rubio 15% | Jeb Bush 6%, John Kasich 5%, Ben Carson 4%, Rand Paul 2%, Carly Fiorina 1%, Rick Santorum 1%, Elizabeth Gray 1% |
| KTVT-CBS 11/ Dixie Strategies Margin of error: ± 3.1% Sample size: 1001 | January 25–26, 2016 | Ted Cruz 30.27% | Donald Trump 25.27% | Marco Rubio 11.99% | Jeb Bush 8.19%, Ben Carson 5.29%, Chris Christie 3.3%, John Kasich 2.6%, Carly Fiorina 2.3%, Mike Huckabee 1.4%, Rand Paul 0.5%, Rick Santorum 0.3%, Jim Gilmore 0.1%, Undecided 8.49% |
| CBS/YouGov Margin of error: ± 4.4% Sample size: 984 | January 18–21, 2016 | Ted Cruz 45% | Donald Trump 30% | Marco Rubio 8% | Ben Carson 5%, Jeb Bush 4%, Chris Christie 2%, Rand Paul 2%, Carly Fiorina 1%, Mike Huckabee 1%, John Kasich 1%, Jim Gilmore 0%, Rick Santorum 0%, No preference 1% |
| UT/Texas Tribune Margin of error: ± 4.21% Sample size: 542 | October 30 – November 8, 2015 | Ted Cruz 27% | Donald Trump 27% | Ben Carson 13% | Marco Rubio 9%, Jeb Bush 4%, Carly Fiorina 4%, Rand Paul 4%, Mike Huckabee 2%, Chris Christie 1%, Rick Santorum 1%, John Kasich 1%, Bobby Jindal 0%, George Pataki 0%, Lindsey Graham 0%, Jim Gilmore 0%, No opinion 5%, Other 2%, Undecided 10% |
| CBS-DFW Margin of error: ± 3.02% Sample size: 1051 | October 23–24, 2015 | Ben Carson 22.93% | Donald Trump 22.17% | Ted Cruz 14.27% | Jeb Bush 12.65%, Marco Rubio 6.57%, Carly Fiorina 4.57%, Mike Huckabee 3.14%, Chris Christie 2.47%, Rand Paul 1.33%, Undecided 9.90% |
| Texas Lyceum Margin of error: ± 6.01% Sample size: 231 | September 8–21, 2015 | Donald Trump 21% | Ted Cruz 16% | Ben Carson 12% | Jeb Bush 10%, Carly Fiorina 6%, Marco Rubio 3%, Mike Huckabee 2%, Rick Perry 1%, Rand Paul 1%, John Kasich 1%, Bobby Jindal 1%, Rick Santorum 1%, George Pataki 1%, Lindsey Graham 0%, Chris Christie 0%, Jim Gilmore 0%, Scott Walker 0%, No opinion 5% |
| Gravis Marketing Margin of error: ± 3% Sample size: 976 | August 20, 2015 | Donald Trump 24% | Ted Cruz 16% | Ben Carson 12% | Jeb Bush 9%, Carly Fiorina 5%, Marco Rubio 5%, Rick Perry 4%, Mike Huckabee 4%, Scott Walker 4%, Other/Unsure 16% |
| Opinion Savvy/Insider Advantage Margin of error: ± 4.3% Sample size: 504 | August 2–3, 2015 | Ted Cruz 20% | Donald Trump 19.4% | Jeb Bush 16.9% | Ben Carson 10.5%, Scott Walker 6.9%, Mike Huckabee 3.9%, John Kasich 3.7%, Bobby Jindal 2.5%, Marco Rubio 2.4%, Rick Perry 2.3%, Rand Paul 2.2%, Carly Fiorina 2.1%, Chris Christie 1.5%, Lindsey Graham 0.9%, George Pataki 0.3%, Rick Santorum 0.3%, Other 2%, Undecided 2.6% |
| UoT/Texas Tribune Margin of error: ± 4.75% Sample size: 504 | June 5–14, 2015 | Ted Cruz 20% | Rick Perry 12% | Scott Walker 10% | Marco Rubio 8%, Jeb Bush 7%, Ben Carson 6%, Rand Paul 6%, Mike Huckabee 5%, Carly Fiorina 3%, Rick Santorum 2%, Donald Trump 2%, Chris Christie 1%, Bobby Jindal 1%, John Kasich 1%, Lindsey Graham 1%, George Pataki 0%, No opinion 15% |
| UoT/Texas Tribune Margin of error: ± 4.19% Sample size: 547 | February 6–15, 2015 | Ted Cruz 20% | Scott Walker 19% | Jeb Bush 9% | Ben Carson 9%, Rick Perry 8%, Mike Huckabee 5%, Rand Paul 4%, Marco Rubio 4%, Sarah Palin 3%, Chris Christie 2%, Bobby Jindal 1%, John Kasich 1%, Rick Santorum 1%, John Bolton 0%, Carly Fiorina 0%, Lindsey Graham 0%, Undecided 13% |
| UoT/Texas Tribune Margin of error: ± 4.14% Sample size: 560 | October 10–19, 2014 | Ted Cruz 27% | Rick Perry 14% | Ben Carson 10% | Jeb Bush 7%, Mike Huckabee 7%, Rand Paul 7%, Paul Ryan 4%, Chris Christie 3%, Marco Rubio 3%, Bobby Jindal 2%, Scott Walker 2%, Rick Santorum 1%, John Kasich 0%, Undecided 11% |
| UoT/Texas Tribune Margin of error: ± 4.37% Sample size: 504 | May 30 – June 8, 2014 | Ted Cruz 33% | Rand Paul 9% | Mike Huckabee 8% | Jeb Bush 7%, Rick Perry 7%, Marco Rubio 6%, Paul Ryan 6%, Scott Walker 4%, Chris Christie 3%, Bobby Jindal 2%, Rick Santorum 1%, Undecided 13% |
| Public Policy Polling Margin of error: ± 5.7% Sample size: 294 | April 10–13, 2014 | Ted Cruz 25% | Jeb Bush 14% | Mike Huckabee 10% | Rand Paul 10%, Rick Perry 10%, Chris Christie 5%, Paul Ryan 5%, Bobby Jindal 4%, Marco Rubio 4%, Other/Undecided 12% |
| UoT/Texas Tribune Margin of error: ± 4.21% Sample size: 543 | February 7–17, 2014 | Ted Cruz 28% | Rand Paul 10% | Rick Perry 10% | Jeb Bush 8%, Paul Ryan 8%, Bobby Jindal 6%, Marco Rubio 6%, Scott Walker 6%, Chris Christie 4%, Rick Santorum 4%, Undecided 12% |
| Public Policy Polling Margin of error: ± 5% Sample size: 388 | November 1–4, 2013 | Ted Cruz 32% | Jeb Bush 13% | Chris Christie 13% | Rand Paul 10%, Bobby Jindal 6%, Marco Rubio 5%, Paul Ryan 5%, Rick Perry 3%, Rick Santorum 3%, Someone Else/Undecided 10% |
| Public Policy Polling Margin of error: ± 5.5% Sample size: 318 | June 28 – July 1, 2013 | Ted Cruz 27% | Jeb Bush 15% | Chris Christie 11% | Rand Paul 11%, Paul Ryan 9%, Rick Perry 7%, Marco Rubio 6%, Rick Santorum 4%, Bobby Jindal 3%, Someone Else/Undecided 8% |
| UoT/Texas Tribune Margin of error: ± 5.27% Sample size: 492 | May 31 – June 9, 2013 | Ted Cruz 25% | Rand Paul 13% | Marco Rubio 11% | Rick Perry 10%, Chris Christie 8%, Paul Ryan 8%, Rick Santorum 2%, Bobby Jindal 2%, Don't Know 21% |
| Public Policy Polling Margin of error: ± 4.9% Sample size: 400 | Jan. 24–27, 2013 | Marco Rubio 21% | Mike Huckabee 14% | Rand Paul 13% | Jeb Bush 11%, Paul Ryan 11%, Chris Christie 9%, Bobby Jindal 4%, Rick Perry 4%, Susana Martinez 2%, Someone Else/Undecided 10% |

## Utah

Winner: Ted Cruz Primary date: March 22, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Caucus results | March 22, 2016 | Ted Cruz 69.17% | John Kasich 16.81% | Donald Trump 14.03% | |
| Y2 Analytics Margin of error: ± 4.38% Sample size: 500 | March 17–19, 2016 | Ted Cruz 53% | John Kasich 29% | Donald Trump 11% | Other 2%, Undecided 5% |
| Dan Jones and Associates Margin of error: ± 7% Sample size: 215 | March 8–15, 2016 | Ted Cruz 42% | Donald Trump 21% | Marco Rubio 17% | John Kasich 13%, Undecided 7% |
| Dan Jones and Associates Margin of error: ± 3.92% Sample size: 625 | February 10–15, 2016 | Marco Rubio 24% | Ted Cruz 22% | Donald Trump 18% | Jeb Bush 9%, Ben Carson 9%, John Kasich 4%, Other 2%, Undecided 11% |
| Salt Lake Tribune/SurveyUSA Margin of error: ± 4.9% Sample size: 989 | January 6–13, 2016 | Ted Cruz 18% | Donald Trump 17% | Ben Carson 15% | Marco Rubio 15%, Jeb Bush 7%, Carly Fiorina 5%, Rand Paul 4%, Chris Christie 2%, John Kasich 1%, Rick Santorum 0%, Mike Huckabee 0%, Undecided 16% |
| Dan Jones and Associates Margin of error: ± 3.93% Sample size: 622 | December 8–14, 2015 | Ted Cruz 20% | Ben Carson 18% | Marco Rubio 18% | Donald Trump 12%, Other/Don't know ?% |
| Dan Jones and Associates Margin of error: ± 4% Sample size: 604 | September 8–17, 2015 | Ben Carson 23% | Donald Trump 15% | Jeb Bush 12% | Other/Don't know ?% |
| Dan Jones and Associates Margin of error: ± ? Sample size: ? | July 14–21, 2015 | Jeb Bush 22% | Scott Walker 11% | Marco Rubio 9% | Donald Trump 8%, Other/Don't know ?% |
| Dan Jones & Associates Margin of error: ±4.86% Sample size: 406 | March 3–5, 2015 | Jeb Bush 14% | Scott Walker 12% | Rand Paul 12% | Marco Rubio 5%, Chris Christie 4%, Lindsey Graham 2%, Bobby Jindal 1%, Other/Don't know 50% |

## Vermont

Winner: Donald Trump Primary date: March 1, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Primary results | March 1, 2016 | Donald Trump 32.34% | John Kasich 30.01% | Marco Rubio 19.08% | Ted Cruz 9.61%, Ben Carson 4.13%, Jeb Bush 1.79%, Rand Paul 0.68%, Chris Christie 0.58%, Carly Fiorina 0.34%, Rick Santorum 0.27% |
| Castleton University/Vermont Public Radio Margin of error: ± 9.01% Sample size: 118 | February 3–17, 2016 | Donald Trump 32.4% | Marco Rubio 16.9% | Ted Cruz 10.5% | John Kasich 10.0%, Jeb Bush 7.7%, Ben Carson 3.1%, Chris Christie 2.4%, Carly Fiorina 1.0%, Rick Santorum 0.6%, Someone else 3.3%, Not sure/Don't know 12.1% |

## Virginia

Winner: Donald Trump Primary date: March 1, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Primary results | March 1, 2016 | Donald Trump 34.80% | Marco Rubio 31.98% | Ted Cruz 16.69% | John Kasich 9.54%, Ben Carson 5.87%, Jeb Bush 0.36%, Rand Paul 0.28%, Mike Huckabee 0.14%, Chris Christie 0.11%, Carly Fiorina 0.09%, Jim Gilmore 0.06%, Lindsey Graham 0.04%, Rick Santorum 0.04% |
| SurveyMonkey Margin of error: ± ?% Sample size: 848 | February 22–29, 2016 | Donald Trump 36% | Marco Rubio 26% | Ted Cruz 13% | Ben Carson 11%, John Kasich 7%, Undecided 8% |
| CBS/YouGov Margin of error: ± 8.6% Sample size: 481 | February 22–26, 2016 | Donald Trump 40% | Marco Rubio 27% | Ted Cruz 22% | John Kasich 6%, Ben Carson 4%, Undecided 1% |
| Monmouth University Margin of error: ± 4.8% Sample size: 421 | February 22–24, 2016 | Donald Trump 41% | Marco Rubio 27% | Ted Cruz 14% | John Kasich 7%, Ben Carson 7%, Undecided 4% |
| Roanoke College Margin of error: ± 4.5% Sample size: 466 | February 16–24, 2016 | Donald Trump 38% | Ted Cruz 15% | Marco Rubio 13% | John Kasich 8%, Ben Carson 8%, Undecided 19% |
| Christopher Newport University Margin of error: ± 5.6% Sample size: 368 | February 3–14, 2016 | Donald Trump 28% | Marco Rubio 22% | Ted Cruz 19% | Ben Carson 7%, John Kasich 7%, Jeb Bush 4%, Chris Christie 4%, Carly Fiorina 2%, Jim Gilmore <1%, Someone else 1%, Undecided 6% |
| University of Mary Washington Margin of error: ± ?% Sample size: 333 | November 4–9, 2015 | Ben Carson 29% | Donald Trump 24% | Marco Rubio 11% | Ted Cruz 10%, Jeb Bush 5%, Carly Fiorina 5%, Rand Paul 4%, Chris Christie 4%, Mike Huckabee 4%, John Kasich 1%, Jim Gilmore 0%, Don't know 2% |
| Christopher Newport University Margin of error: ± 5.1% Sample size: 412 | September 29 – October 8, 2015 | Donald Trump 23% | Ben Carson 17% | Marco Rubio 14% | Carly Fiorina 13%, Jeb Bush 9%, Ted Cruz 5%, Chris Christie 4%, Mike Huckabee 3%, John Kasich 2%, Rand Paul 2%, Lindsey Graham 1%, Bobby Jindal <1%, George Pataki <1%, Rick Santorum <1%, Jim Gilmore <1%, Someone else 1%, Undecided 5% |
| Opinion Savvy/Insider Advantage Margin of error: ± 4.1% Sample size: 504 | August 2–3, 2015 | Donald Trump 27.9% | Jeb Bush 14.8% | Scott Walker 10.1% | Ben Carson 8%, Carly Fiorina 6.8%, Ted Cruz 6.4%, Rand Paul 5.1%, Marco Rubio 3.5%, John Kasich 3.2%, Chris Christie 3.1%, Rick Perry 2.3%, Mike Huckabee 1.5%, Bobby Jindal 1%, Lindsey Graham 0.7%, George Pataki 0.7%, Rick Santorum 0%, Someone else 1.8%, Undecided 3.2% |
| Public Policy Polling Margin of error: ± 4.4% Sample size: 502 | July 13–15, 2015 | Jeb Bush 18% | Donald Trump 14% | Scott Walker 14% | Ben Carson 10%, Mike Huckabee 8%, Marco Rubio 7%, Chris Christie 5%, Ted Cruz 5%, Carly Fiorina 5%, Rand Paul 5%, Bobby Jindal 3%, Rick Perry 2%, Jim Gilmore 1%, Lindsey Graham 1%, John Kasich 1%, Rick Santorum 1%, George Pataki 0%, Someone else/Not sure 3% |
| Christopher Newport University Margin of error: ± ? Sample size: ? | April 13–24, 2015 | Jeb Bush 17% | Marco Rubio 16% | Chris Christie 10% | Rand Paul 10%, Scott Walker 10%, Ben Carson 7%, Ted Cruz 7%, Mike Huckabee 6%, Donald Trump 5%, Bobby Jindal 2%, Carly Fiorina 1%, John Kasich <1%, Rick Perry <1%, Rick Santorum <1%, Someone else <1%, Undecided 7% |
| Christopher Newport University Margin of error: ± 3.6% Sample size: 794 | January 30 – February 10, 2015 | Jeb Bush 21% | Scott Walker 16% | Chris Christie 10% | Mike Huckabee 10%, Ben Carson 9%, Rand Paul 6%, Marco Rubio 6%, Paul Ryan 5%, Ted Cruz 3%, John Kasich 3%, Bobby Jindal 2%, Mike Pence 1%, Rick Perry 1%, Rob Portman 1%, Rick Santorum 1%, Someone else 1%, Undecided 4% |
| Christopher Newport University Margin of error: ± 5.3% Sample size: 338 | February 23–28, 2014 | Chris Christie 19% | Jeb Bush 18% | Mike Huckabee 13% | Paul Ryan 13%, Ted Cruz 9%, Rand Paul 7%, Marco Rubio 4%, Scott Walker 3%, Undecided 13% |
| University of Mary Washington Margin of error: ±? Sample size: ? | September 25–29, 2013 | Chris Christie 20% | Jeb Bush 10% | Rand Paul 10% | Paul Ryan 8%, Marco Rubio 7%, Ted Cruz 5%, None 14%, Don't know 19% |
| Public Policy Polling Margin of error: ±4.8% Sample size: 415 | July 11–14, 2013 | Jeb Bush 16% | Chris Christie 16% | Rand Paul 15% | Marco Rubio 12%, Paul Ryan 11%, Ted Cruz 9%, Bob McDonnell 8%, Bobby Jindal 4%, Rick Santorum 2%, Someone Else/Undecided 7% |
| Public Policy Polling Margin of error: ±4.4% Sample size: 500 | May 24–26, 2013 | Marco Rubio 17% | Chris Christie 15% | Jeb Bush 14% | Bob McDonnell 12%, Rand Paul 10%, Ted Cruz 8%, Paul Ryan 8%, Bobby Jindal 3%, Rick Santorum 2%, Someone Else/Undecided 11% |
| Public Policy Polling Margin of error: ±4.4% Sample size: 500 | May 24–26, 2013 | Chris Christie 20% | Marco Rubio 20% | Jeb Bush 17% | Paul Ryan 10%, Rand Paul 9%, Ted Cruz 8%, Bobby Jindal 3%, Rick Santorum 2%, Someone Else/Undecided 10% |
| University of Mary Washington Margin of error: ±? Sample size: ? | March 20–24, 2013 | Chris Christie 18% | Bob McDonnell 12% | Rand Paul 11% | Paul Ryan 11%, Marco Rubio 9%, Jeb Bush 8%, Other 1%, None 10%, Don't know 17% |

## Washington

Winner: Donald Trump Primary date: May 24, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Primary results | May 10, 2016 | Donald Trump 75.82% | Ted Cruz 10.48% | John Kasich 9.81% | Ben Carson 3.89% |
| Townhall/Gravis Insights Margin of error: ± 4% Sample size: 523 | May 18–19, 2015 | Rand Paul 13.2% | Scott Walker 12.4% | Jeb Bush 11.5% | Marco Rubio 11.3%, Ben Carson 7.6%, Chris Christie 6%, Ted Cruz 5%, Mike Huckabee 5%, Carly Fiorina 3%, Rick Santorum 2%, Unsure 23% |
| Public Policy Polling Margin of error: ± 5.1% Sample size: 372 | May 14–17, 2015 | Scott Walker 18% | Marco Rubio 15% | Mike Huckabee 13% | Ted Cruz 11%, Jeb Bush 10%, Ben Carson 10%, Chris Christie 6%, Rand Paul 5%, Rick Perry 3%, Someone else/Not sure 7% |

## West Virginia

Winner: Donald Trump Primary date: May 10, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Primary results | May 10, 2016 | Donald Trump 77.01% | Ted Cruz 8.98% | John Kasich 6.74% | Ben Carson 2.17%, Marco Rubio 1.43%, Jeb Bush 1.14%, Rand Paul 0.89%, Mike Huckabee 0.87%, Chris Christie 0.36%, Carly Fiorina 0.33% |
| R.L. Repass & Partners/MetroNews Margin of error: ± 4% Sample size: 228 | April 22– May 2, 2016 | Donald Trump 57% | Ted Cruz 25% | John Kasich 14% | Undecided 4% |
| Public Policy Polling Margin of error: ± 4.2% Sample size: 549 | April 29– May 1, 2016 | Donald Trump 61% | Ted Cruz 22% | John Kasich 14% | Undecided 3% |
| Metro News Margin of error: ± ?% Sample size: 159 | February 11–16, 2016 | Donald Trump 40% | Ted Cruz 20% | Marco Rubio 15% | Ben Carson 10%, John Kasich 6%, Jeb Bush 4%, Carly Fiorina <1%, Chris Christie <1%, Not Sure 4% |
| Orion Strategies Margin of error: ± 4.9% Sample size: 406 | August 25, 2015 | Donald Trump 29% | Marco Rubio 8% | Ben Carson 7% | Jeb Bush 7%, Mike Huckabee 7%, Ted Cruz 5%, Scott Walker 2%, Carly Fiorina 2%, John Kasich 1%, Rand Paul 1%, Undecided 32% |
| Harper Polling Margin of error: ± 6.3% Sample size: 242 | April 9–11, 2015 | Jeb Bush 23% | Mike Huckabee 20% | Scott Walker 13% | Ben Carson 8%, Ted Cruz 8%, Rand Paul 7%, Chris Christie 5%, Marco Rubio 4%, Rick Santorum 1%, Undecided 11% |

## Wisconsin

Winner: Ted Cruz Primary date: April 5, 2016
| Poll source | Date | 1st | 2nd | 3rd | Other |
| Primary results | April 5, 2016 | Ted Cruz 48.20% | Donald Trump 35.02% | John Kasich 14.10% | Marco Rubio 0.96%, Ben Carson 0.51%, Jeb Bush 0.28%, Rand Paul 0.23%, Mike Huckabee 0.13%, Chris Christie 0.11%, Carly Fiorina 0.07%, Rick Santorum 0.05%, Jim Gilmore 0.02% |
| ARG Margin of error: ± 5% Sample size: 400 | April 1–3, 2016 | Donald Trump 42% | Ted Cruz 32% | John Kasich 23% | Undecided 3% |
| Emerson College Margin of error: ± 4.1% Sample size: 549 | March 30 - April 3, 2016 | Ted Cruz 40% | Donald Trump 35% | John Kasich 21% | Undecided 4% |
| CBS News/YouGov Margin of error: ± 5.7% Sample size: 675 | March 29-April 1, 2016 | Ted Cruz 43% | Donald Trump 37% | John Kasich 18% | Other/Don't Know 2% |
| Fox Business News Margin of error: ± 3.5% Sample size: 742 | March 28–30, 2016 | Ted Cruz 42% | Donald Trump 32% | John Kasich 19% | Other 1%, Don't Know 5% |
| Loras College Margin of error: ± 4.8% Sample size: 416 | March 28–30, 2016 | Ted Cruz 38% | Donald Trump 31% | John Kasich 18% | Undecided 13% |
| Public Policy Polling Margin of error: ± 3.5% Sample size: 768 | March 28–29, 2016 | Ted Cruz 38% | Donald Trump 37% | John Kasich 17% | Undecided 9% |
| Marquette University Margin of error: ± 5.8% Sample size: 471 | March 24–28, 2016 | Ted Cruz 39.6% | Donald Trump 30.4% | John Kasich 21.4% | Someone Else 0.3%, Undecided 7.7% |
| Optimus Margin of error: ± 1.1% Sample size: 6182 | March 20–24, 2016 | Donald Trump 29.4% | John Kasich 27.1% | Ted Cruz 25% | Undecided 18.6% |
| Emerson College Margin of error: ± 4.6% Sample size: 439 | March 20–22, 2016 | Ted Cruz 36% | Donald Trump 35% | John Kasich 19% | Undecided 10% |
| Marquette University Margin of error: ± 7.5% Sample size: 297 | February 18–21, 2016 | Donald Trump 30% | Marco Rubio 20% | Ted Cruz 19% | Ben Carson 8%, John Kasich 8%, Jeb Bush 3%, Undecided 10% |
| Marquette University Margin of error: ± 6.5% Sample size: 313 | January 21–24, 2016 | Donald Trump 24% | Marco Rubio 18% | Ted Cruz 16% | Ben Carson 8%, Chris Christie 5%, Rand Paul 3%, Carly Fiorina 3%, Jeb Bush 2%, John Kasich 2%, Mike Huckabee 1%, Rick Santorum 0%, Undecided 17% |
| Marquette University Margin of error: ± 6.6% Sample size: 326 | November 12–15, 2015 | Ben Carson 22% | Donald Trump 19% | Marco Rubio 19% | Ted Cruz 9%, Jeb Bush 6%, Carly Fiorina 5%, Chris Christie 4%, Rand Paul 1%, Mike Huckabee 1%, John Kasich 1%, George Pataki <0.5%, Jim Gilmore <0.5%, Someone else 0.6%, Undecided 9.8% |
| Marquette University Margin of error: ± 6.5% Sample size: 321 | September 24–28, 2015 | Donald Trump 20.1% | Ben Carson 16.2% | Marco Rubio 14.4% | Carly Fiorina 10.8%, Jeb Bush 6.6%, Ted Cruz 5.1%, Rand Paul 4.5%, Mike Huckabee 3.4%, Chris Christie 3.1%, John Kasich 2.8%, Rick Santorum 1.2%, Bobby Jindal 0.5%, George Pataki 0.4%, Jim Gilmore 0.2%, Someone else 0.6%, Undecided 9.8% |
| Marquette University Margin of error: ± 6.6% Sample size: 334 | August 13–16, 2015 | Scott Walker 25% | Ben Carson 13% | Donald Trump 9% | Ted Cruz 8%, Carly Fiorina 7%, Marco Rubio 7%, Jeb Bush 6%, Mike Huckabee 4%, Bobby Jindal 2%, Chris Christie 2%, Rand Paul 2%, Rick Perry 1%, John Kasich 1%, Jim Gilmore 1%, Rick Santorum 1%, George Pataki 0%, Lindsey Graham 0% |
| Marquette University Margin of error: ± 5.6% Sample size: 319 | April 7–10, 2015 | Scott Walker 40% | Rand Paul 10.3% | Jeb Bush 7.9% | Ted Cruz 6%, Chris Christie 5.8%, Mike Huckabee 5.1%, Ben Carson 5%, Marco Rubio 3.8%, Bobby Jindal 2.3%, Rick Santorum 1.9%, Carly Fiorina 0.5%, Rick Perry 0.5%, Someone else 1.7%, Don't know 8.9% |
| Public Policy Polling Margin of error: ± 4.6% Sample size: 461 | March 6–8, 2015 | Scott Walker 53% | Ben Carson 12% | Jeb Bush 8% | Rand Paul 6%, Marco Rubio 6%, Chris Christie 4%, Mike Huckabee 3%, Ted Cruz 2%, Rick Perry 1%, Undecided 5% |
| Public Policy Polling Margin of error: ± 4.3% Sample size: 522 | April 17–20, 2014 | Paul Ryan 25% | Scott Walker 21% | Chris Christie 8% | Mike Huckabee 8%, Rand Paul 8%, Ted Cruz 7%, Jeb Bush 6%, Marco Rubio 6%, Bobby Jindal 3%, Someone else/Not sure 8% |
| Magellan Strategies Margin of error: ± ? Sample size: ? | April 14–15, 2014 | Scott Walker 37% | Rand Paul 12% | Ted Cruz 9% | Mike Huckabee 9%, Jeb Bush 8%, Marco Rubio 8%, Chris Christie 4%, John Kasich 1%, Undecided 12% |
| Marquette University Law School Margin of error: ± 5% Sample size: 337 | October 21–27, 2013 | Scott Walker 28.9% | Paul Ryan 24.6% | Marco Rubio 9.3% | Chris Christie 8.6%, Rand Paul 8.4%, Ted Cruz 4.3%, Jeb Bush 2.4%, Someone else 4.2%, Don't know 8.9% |
| Public Policy Polling Margin of error: ± 4.6% Sample size: 447 | September 13–16, 2013 | Paul Ryan 27% | Scott Walker 14% | Chris Christie 12% | Marco Rubio 10%, Ted Cruz 9%, Jeb Bush 8%, Rand Paul 8%, Bobby Jindal 3%, Rick Santorum 3%, Someone else/Not sure 5% |
| Public Policy Polling Margin of error: ± 4.6% Sample size: 447 | September 13–16, 2013 | Paul Ryan 33% | Chris Christie 14% | Jeb Bush 11% | Rand Paul 11%, Ted Cruz 10%, Marco Rubio 9%, Rick Santorum 6%, Bobby Jindal 3%, Someone else/Not sure 5% |
| Public Policy Polling Margin of error: ± 4.6% Sample size: 447 | September 13–16, 2013 | Scott Walker 37% | Chris Christie 13% | Jeb Bush 11% | Ted Cruz 10%, Rand Paul 10%, Marco Rubio 9%, Rick Santorum 4%, Bobby Jindal 2%, Someone else/Not sure 3% |
| Public Policy Polling Margin of error: ± 4.6% Sample size: 447 | September 13–16, 2013 | Paul Ryan 47% | Scott Walker 38% | | Not sure 15% |
| Marquette University Law School Margin of error: ± 5.8% Sample size: 302 | May 6–9, 2013 | Paul Ryan 27.1% | Marco Rubio 21.2% | Scott Walker 16.1% | Chris Christie 10.6%, Rand Paul 6.9%, Jeb Bush 4.6%, Bobby Jindal 0.8%, Someone Else 1.6%, Don't Know 10.5% |
| Public Policy Polling Margin of error: ± 3.8% Sample size: 679 | February 21–24, 2013 | Paul Ryan 35% | Marco Rubio 22% | Chris Christie 10% | Rand Paul 8%, Mike Huckabee 7%, Jeb Bush 5%, Bobby Jindal 3%, Susana Martinez 1%, Rick Perry 1%, Someone Else/Undecided 8% |
| Public Policy Polling Margin of error: ± 3.8% Sample size: 679 | February 21–24, 2013 | Scott Walker 33% | Marco Rubio 27% | Chris Christie 10% | Mike Huckabee 7%, Rand Paul 6%, Jeb Bush 5%, Bobby Jindal 3%, Susana Martinez 2%, Rick Perry 0%, Someone Else/Undecided 8% |

## Wyoming

| Poll source | Date | 1st | 2nd | 3rd | Other |
| Convention results | March 12, 2016 | Ted Cruz 66.3% | Marco Rubio 19.5% | Donald Trump 7.2% | John Kasich 0.0%, Uncommitted 7.0%, Other 0.0% |
| Public Policy Polling Margin of error: ±3.5% Sample size: 780 | July 19–21, 2013 | Rand Paul 19% | Chris Christie 14% | Jeb Bush 13% | Paul Ryan 11%, Ted Cruz 9%, Marco Rubio 9%, Rick Santorum 4%, Bobby Jindal 3%, Susana Martinez 1%, Other/Undecided 18% |
| Harper Polling Margin of error: ±4.77% Sample size: 422 | July 17–18, 2013 | Paul Ryan 15% | Rand Paul 12% | Jeb Bush 10% | Chris Christie 10%, Marco Rubio 10%, Ted Cruz 5%, Rick Santorum 3%, Bobby Jindal 2%, Scott Walker 1%, Undecided 33% |