# 2024 United States presidential election in Idaho

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vte :
The 2024 United States presidential election in Idaho took place on Tuesday, November 5, 2024, as part of the 2024 United States presidential election in which all 50 states plus the District of Columbia participated. Idaho voters chose electors to represent them in the Electoral College via a popular vote. The state of Idaho has 4 electoral votes in the Electoral College, following reapportionment due to the 2020 United States census in which the state neither gained nor lost a seat.
Prior to the election, all major news organizations considered Idaho a solid red state; a sparsely-populated Mountain state with an overwhelmingly White populace and an evangelical predominance, Idaho is one of the most staunchly conservative states in the U.S., with the only Democratic presidential candidate to carry the state after Harry Truman in 1948 being landslide winner Lyndon B. Johnson in 1964, and Republicans having never won the state's electoral votes by less than 13% since.
As expected, Republican Donald Trump overwhelmingly won Idaho, taking 70.03% of the vote to Democrat Kamala Harris' 28.39% and winning the state by 41.64%, well above his 30.8% in 2020 and his 31.8% in 2016, and the widest presidential margin of victory in Idaho since Ronald Reagan's 45.97% in 1984. Idaho was Trump's third strongest state nationwide, only behind West Virginia and neighboring Wyoming.

## Primary elections

The Idaho Legislature passed HB 138 during the 2023 legislative session, resulting in the elimination of the state-ran primary for all parties. The legislature did not restore the state-ran primary by the October 1 deadline, and both the major parties in the state opted to operate and fund firehouse nominations for president.

### Republican primary

The Idaho Republican primary was held on March 2, 2024, alongside primaries in Hawaii, Mississippi, Missouri, and Washington.
Idaho Republican caucus, March 2, 2024 :
| Candidate | Votes | Percentage | Actual delegate count | Actual delegate count | Actual delegate count |
| Candidate | Votes | Percentage | Bound | Unbound | Total |
| Donald Trump | 33,603 | 84.89% | 32 | 0 | 32 |
| Nikki Haley | 5,221 | 13.18% | 0 | 0 | 0 |
| Ron DeSantis (withdrawn) | 534 | 1.35% | 0 | 0 | 0 |
| Vivek Ramaswamy (withdrawn) | 95 | 0.24% | 0 | 0 | 0 |
| Chris Christie (withdrawn) | 91 | 0.23% | 0 | 0 | 0 |
| Ryan Binkley (withdrawn) | 40 | 0.10% | 0 | 0 | 0 |
| Total | 39,584 | 100.00% | 32 | 0 | 32 |

### Democratic caucuses

The Idaho Democratic presidential caucuses were held on May 23, 2024.
Idaho Democratic caucus, May 23, 2024 :
| Candidate | Votes | Percentage | Actual delegate count | Actual delegate count | Actual delegate count |
| Candidate | Votes | Percentage | Pledged | Unpledged | Total |
| Joe Biden (incumbent) | 2,297 | 95.2% | 23 | | |
| Marianne Williamson | 79 | 3.3% | | | |
| Dean Phillips (withdrawn) | 14 | 0.6% | | | |
| David Olscamp | 14 | 0.6% | | | |
| Jason Palmer (withdrawn) | 5 | 0.2% | | | |
| Armando Perez-Serrato | 3 | 0.1% | | | |
| Total: | 2,412 | 100.0% | 23 | 4 | 27 |

## General election
### Candidates

The official list of certified candidates was finalized by Idaho secretary of state Phil McGrane on September 4, 2024, with the following nine candidates qualifying:
* Kamala Harris / Tim Walz – Democratic
* Donald Trump / JD Vance – Republican
* Joel Skousen / Rik Combs – Constitution
* Chase Oliver / Mike ter Maat – Libertarian
* Shiva Ayyadurai / Crystal Ellis – independent
* Claudia De la Cruz / Karina Garcia – independent
* Robert F. Kennedy Jr. / Nicole Shanahan – independent
* Jill Stein / Butch Ware – independent
* Randall Terry / Stephen Broden – independent
Despite Terry being the nominee of the national Constitution Party, the state party dissented and chose to nominate Joel Skousen. Terry then petitioned to appear on the ballot as an independent candidate.

### Predictions

| Source | Ranking | As of |
| Cook Political Report | Solid R | December 19, 2023 |
| Inside Elections | Solid R | April 26, 2023 |
| Sabato's Crystal Ball | Safe R | June 29, 2023 |
| Decision Desk HQ/The Hill | Safe R | December 14, 2023 |
| CNalysis | Solid R | December 30, 2023 |
| CNN | Solid R | January 14, 2024 |
| The Economist | Safe R | June 12, 2024 |
| 538 | Solid R | June 11, 2024 |
| RCP | Solid R | June 26, 2024 |
| NBC News | Safe R | October 6, 2024 |

### Polling

Donald Trump vs. Joe Biden
| Poll source | Date(s) administered | Sample size | Margin of error | Donald Trump Republican | Joe Biden Democratic | Other / Undecided |
| | July 21, 2024 | Joe Biden withdraws from the race. | Joe Biden withdraws from the race. | Joe Biden withdraws from the race. | Joe Biden withdraws from the race. | Joe Biden withdraws from the race. |
| John Zogby Strategies | April 13–21, 2024 | 309 (LV) | – | 60% | 30% | 10% |
| Emerson College | October 1–4, 2023 | 490 (RV) | ± 4.4% | 55% | 26% | 19% |
Donald Trump vs. Robert F. Kennedy Jr.
| Poll source | Date(s) administered | Sample size | Margin of error | Donald Trump Republican | Robert Kennedy Jr. Independent | Other / Undecided |
| John Zogby Strategies | April 13–21, 2024 | 309 (LV) | – | 54% | 32% | 14% |
Robert F. Kennedy Jr. vs. Joe Biden
| Poll source | Date(s) administered | Sample size | Margin of error | Robert Kennedy Jr. Independent | Joe Biden Democratic | Other / Undecided |
| John Zogby Strategies | April 13–21, 2024 | 309 (LV) | – | 60% | 25% | 15% |

### Results

2024 United States presidential election in Idaho :
| Party | Party | Candidate | Votes | % | ±% |
| | Republican | Donald TrumpJD Vance | 633,846 | 70.03% | 3.03% |
| | Democratic | Kamala HarrisTim Walz | 256,972 | 28.39% | 2.69% |
| | Independent | Robert F. Kennedy Jr. (withdrawn)Nicole Shanahan (withdrawn) | 12,812 | 1.42% | N/A |
| | Libertarian | Chase OliverMike ter Maat | 4,462 | 0.49% | 1.40% |
| | Green | Jill SteinSamson Kpadenou | 2,973 | 0.33% | 0.28% |
| | Constitution | Joel SkousenRik Combs | 1,577 | 0.17% | 0.05% |
| | Socialism and Liberation | Claudia De la CruzKarina Garcia | 1,230 | 0.14% | 0.13% |
| | Independent | Randall TerryStephen Broden | 1,026 | 0.11% | N/A |
| | Independent | Shiva AyyaduraiCrystal Ellis | 514 | 0.1% | N/A |
| | American Solidarity | Peter Sonski (write-in) Lauren Onak (write-in) | 242 | 0.03% | 0.01% |
| | Independent | Other (write-in) | 3 | 0.00% | |
| Total votes | Total votes | Total votes | 915,657 | 100.00% | N/A |

#### By county

| County | Donald Trump Republican | Donald Trump Republican | Kamala Harris Democratic | Kamala Harris Democratic | Various candidates Other parties | Various candidates Other parties | Margin | Margin | Total |
| County | # | % | # | % | # | % | # | % | Total |
| Ada | 143,759 | 53.76% | 116,116 | 43.42% | 7,544 | 2.82% | 27,643 | 10.34% | 267,419 |
| Adams | 2,037 | 75.98% | 577 | 21.52% | 67 | 2.50% | 1,460 | 54.46% | 2,681 |
| Bannock | 24,329 | 60.86% | 14,306 | 35.79% | 1,341 | 3.35% | 10,023 | 25.07% | 39,976 |
| Bear Lake | 2,908 | 87.46% | 346 | 10.41% | 71 | 2.13% | 2,562 | 77.05% | 3,325 |
| Benewah | 4,094 | 79.57% | 935 | 18.17% | 116 | 2.26% | 3,159 | 61.40% | 5,145 |
| Bingham | 16,188 | 78.39% | 3,878 | 18.78% | 585 | 2.83% | 12,310 | 59.61% | 20,651 |
| Blaine | 4,281 | 32.71% | 8,424 | 64.36% | 384 | 2.93% | -4,143 | -31.65% | 13,089 |
| Boise | 3,727 | 75.91% | 1,065 | 21.69% | 118 | 2.40% | 2,662 | 54.22% | 4,910 |
| Bonner | 21,352 | 71.87% | 7,650 | 25.75% | 708 | 2.38% | 13,702 | 46.12% | 29,710 |
| Bonneville | 40,053 | 70.97% | 14,458 | 25.62% | 1,925 | 3.41% | 25,595 | 45.35% | 56,436 |
| Boundary | 5,794 | 81.49% | 1,145 | 16.10% | 171 | 2.41% | 4,649 | 65.39% | 7,110 |
| Butte | 1,268 | 84.87% | 185 | 12.38% | 41 | 2.75% | 1,083 | 72.49% | 1,494 |
| Camas | 547 | 75.14% | 153 | 21.02% | 28 | 3.84% | 394 | 54.12% | 728 |
| Canyon | 72,755 | 72.01% | 25,669 | 25.41% | 2,606 | 2.58% | 47,086 | 46.60% | 101,030 |
| Caribou | 2,906 | 84.09% | 445 | 12.88% | 105 | 3.03% | 2,461 | 71.21% | 3,456 |
| Cassia | 7,959 | 83.27% | 1,359 | 14.22% | 240 | 2.51% | 6,600 | 69.05% | 9,558 |
| Clark | 280 | 84.08% | 50 | 15.02% | 3 | 0.90% | 230 | 69.06% | 333 |
| Clearwater | 3,550 | 80.32% | 774 | 17.51% | 96 | 2.17% | 2,776 | 62.81% | 4,420 |
| Custer | 1,998 | 75.40% | 586 | 22.11% | 66 | 2.49% | 1,412 | 53.29% | 2,650 |
| Elmore | 7,791 | 73.00% | 2,611 | 24.47% | 270 | 2.53% | 5,180 | 48.53% | 10,672 |
| Franklin | 6,279 | 87.40% | 703 | 9.79% | 202 | 2.81% | 5,576 | 77.61% | 7,184 |
| Fremont | 5,645 | 82.98% | 954 | 14.02% | 204 | 3.00% | 4,691 | 68.96% | 6,803 |
| Gem | 8,707 | 81.99% | 1,699 | 16.00% | 214 | 2.01% | 7,008 | 65.99% | 10,620 |
| Gooding | 4,676 | 79.01% | 1,100 | 18.59% | 142 | 2.40% | 3,576 | 60.42% | 5,918 |
| Idaho | 8,148 | 82.58% | 1,460 | 14.80% | 259 | 2.62% | 6,688 | 67.78% | 9,867 |
| Jefferson | 13,481 | 85.21% | 1,891 | 11.95% | 448 | 2.84% | 11,590 | 73.26% | 15,820 |
| Jerome | 6,012 | 75.66% | 1,742 | 21.92% | 192 | 2.42% | 4,270 | 53.74% | 7,946 |
| Kootenai | 72,059 | 74.78% | 22,113 | 22.95% | 2,193 | 2.27% | 49,946 | 51.83% | 96,365 |
| Latah | 10,669 | 52.14% | 9,039 | 44.18% | 753 | 3.68% | 1,630 | 7.97% | 20,461 |
| Lemhi | 3,716 | 76.24% | 1,038 | 21.30% | 120 | 2.46% | 2,678 | 54.94% | 4,874 |
| Lewis | 1,503 | 81.42% | 305 | 16.52% | 38 | 2.06% | 1,198 | 64.90% | 1,846 |
| Lincoln | 1,466 | 76.47% | 392 | 20.45% | 59 | 3.08% | 1,074 | 56.02% | 1,917 |
| Madison | 13,925 | 80.20% | 2,767 | 15.94% | 671 | 3.86% | 11,158 | 64.26% | 17,363 |
| Minidoka | 6,401 | 80.54% | 1,373 | 17.27% | 174 | 2.19% | 5,028 | 63.27% | 7,948 |
| Nez Perce | 13,707 | 68.08% | 5,928 | 29.44% | 500 | 2.48% | 7,779 | 38.64% | 20,135 |
| Oneida | 2,119 | 86.24% | 253 | 10.30% | 85 | 3.46% | 1,866 | 75.94% | 2,457 |
| Owyhee | 4,101 | 82.85% | 756 | 15.27% | 93 | 1.88% | 3,345 | 67.58% | 4,950 |
| Payette | 9,458 | 80.42% | 2,064 | 17.55% | 239 | 2.03% | 7,394 | 62.87% | 11,761 |
| Power | 2,146 | 71.04% | 785 | 25.98% | 90 | 2.98% | 1,361 | 45.06% | 3,021 |
| Shoshone | 4,500 | 73.39% | 1,472 | 24.01% | 160 | 2.60% | 3,028 | 49.38% | 6,132 |
| Teton | 3,005 | 44.86% | 3,463 | 51.70% | 230 | 3.44% | -458 | -6.84% | 6,698 |
| Twin Falls | 27,304 | 73.04% | 9,064 | 24.25% | 1,015 | 2.71% | 18,240 | 48.79% | 37,383 |
| Valley | 4,214 | 58.20% | 2,869 | 39.63% | 157 | 2.17% | 1,345 | 18.57% | 7,240 |
| Washington | 4,429 | 79.73% | 1,010 | 18.18% | 116 | 2.09% | 3,419 | 61.55% | 5,555 |
| Totals | 605,246 | 66.87% | 274,972 | 30.38% | 24,839 | 2.74% | 330,274 | 36.49% | 905,057 |

#### Counties that flipped from Democratic to Republican

* Latah (largest city: Moscow)
* Democratic — +2.5-5%
* Democratic — +0-2.5%
* Republican — +0-2.5%
* Republican — +2.5-5%
* Republican — +5-7.5%
* Republican — +7.5-10%
* Republican — +10-12.5%
* Democratic  Hold Republican  Hold  Gain from Democratic

#### By congressional district

Trump won both congressional districts.
| District | Trump | Harris | Representative |
| 1st | 71.29% | 26.24% | Russ Fulcher |
| 2nd | 61.83% | 35.11% | Mike Simpson |

## Analysis

Trump flipped the Panhandle county of Latah, anchored by the college town of Moscow, becoming the first Republican to win the county since Bush in 2004; and with nearly an 8% margin of victory, having the best showing for a presidential candidate there since Bush's 16.3% margin in 2000. He also became the first Republican to win the White House without winning Teton County since it was established in 1915. He became the first presidential Republican to win Ada County — home to the state capital and largest city Boise — by a double-digit margin since Mitt Romney in 2012.