# 2020 United States presidential election in Maine

Elections in Maine :
Federal offices
U.S. President
1820
1824
1828
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1840
1844
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1852
1856
1860
1864
1868
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2008
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2016
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2020
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U.S. Senate
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1829 sp
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1918
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U.S. House of Representatives
1820–1821
1822 sp 2nd
1823
1824–1825
1826–1827
1826 sp 5th
1827 sp 1st
1828–1830
1830
1833
1834
1836
1838
1840
1843
1844
1846
1848
1850
1852
1854
1856
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1860 sp 5th
1862
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1872
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1881 sp 2nd
1882
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1897 sp 3rd
1898
1899 sp 1st
1899 sp 2nd
1900
1901 sp 4th
1902
1904
1906
1908
1908 sp 2nd
1908 sp 4th
1910
1912
1913 sp 3rd
1914
1916
1918
1920
1922
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1926
1928
1930
1932
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1940 sp 2nd
1942
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1951 sp 3rd
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1982
1984
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1988
1990
1992
1994
1996
1998
2000
2002
2004
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2008
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2012
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2016
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2026 :
State government
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State Senate elections
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State House elections
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Ballot measures
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2016
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Question 5
2017
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2018
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Constitutional amendments
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Question 5 :
City of Portland
Mayoral elections
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2015
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2023 :
vte :
The 2020 United States presidential election in Maine was held on Tuesday, November 3, 2020, as part of the 2020 United States presidential election in which all 50 states plus the District of Columbia participated. Maine voters chose electors to represent them in the Electoral College via a popular vote, pitting the Republican Party's nominee, incumbent President Donald Trump, and running mate Vice President Mike Pence against Democratic Party nominee, former Vice President Joe Biden, and his running mate California Senator Kamala Harris. Maine has four electoral votes in the Electoral College. Unlike all other states except Nebraska, Maine awards two electoral votes based on the statewide vote, and one vote for each congressional district.
On election day, Biden carried Maine at-large by nine percentage points and the 1st congressional district by 23 percentage points, garnering three electoral votes. However, the rural 2nd district backed Trump by more than seven percentage points, giving him one electoral vote. This was the same result as 2016, and as such marked only the second time since 1828 that Maine split its electoral votes. Also this is the first time since 1828 where the candidate who win of election and the national popular at the same time didn't receive all Maine electoral votes. Finally, it's also the first election where ME-2 didn't vote for the winner of election and the winner of the national popular at the same time while ME-1 and Maine at large did the opposite.
Maine became the first state to use ranked-choice voting for a presidential general election, with voters able to rank their preferred candidates on the ballot. Majorities were reached in the first round of voting statewide and in each congressional district, so ranked-choice voting tabulation was not required.
Biden performed strongly with college-educated voters to win Maine. Maine weighed in for this election as 5% more Democratic than the national average.

## Primary elections

The primary elections were held on Super Tuesday, March 3, 2020.

### Republican primary

Incumbent President Donald Trump ran unopposed in the Republican primary, and thus he received all of Maine's 22 delegates to the 2020 Republican National Convention.
2020 Maine Republican presidential primary :
| Candidate | Votes | % | Delegates |
| Donald Trump (incumbent) | 95,360 | 83.85 | 22 |
| Blank ballots | 18,368 | 16.15 | 0 |
| Total | 113,728 | 100% | 22 |

### Democratic primary

Joe Biden won the state primary. Opponent Bernie Sanders won the Maine caucus in 2016.
2020 Maine Democratic presidential primary :
| Candidate | Votes | % | Delegates |
| Joe Biden | 68,729 | 33.37 | 11 |
| Bernie Sanders | 66,826 | 32.45 | 9 |
| Elizabeth Warren | 32,055 | 15.57 | 4 |
| Michael Bloomberg | 24,294 | 11.80 | |
| Pete Buttigieg (withdrawn) | 4,364 | 2.12 | |
| Amy Klobuchar (withdrawn) | 2,826 | 1.37 | |
| Tulsi Gabbard | 1,815 | 0.88 | |
| Andrew Yang (withdrawn) | 696 | 0.34 | |
| Tom Steyer (withdrawn) | 313 | 0.15 | |
| Deval Patrick (withdrawn) | 218 | 0.11 | |
| Marianne Williamson (withdrawn) | 201 | 0.10 | |
| Cory Booker (withdrawn) | 183 | 0.09 | |
| Blank ballots | 3,417 | 1.66 | |
| Total | 205,937 | 100% | 24 |

### Libertarian nominee

* Jo Jorgensen, Psychology Senior Lecturer at Clemson University

### Green nominee

* Howie Hawkins, co-founder of the Green Party, trade unionist and environmental activist

### Alliance nominee

* Rocky De La Fuente, businessman

## General election
### Ballot access

The Libertarian Party was recognized by Maine as an official party in June 2016 but lost that status in December 2018. To qualify for ballot access, Jorgensen was required to submit 4,000 petition signatures to the state by August 3. Jorgensen sued the state for a reduction of the signature requirement, citing an increase in the difficulty of petitioning caused by the COVID-19 pandemic. Jorgensen was successful in appearing on the ballot.

### Final predictions

| Source | Ranking (statewide) | Ranking (1st) | Ranking (2nd) |
| The Cook Political Report | Likely D | Solid D | Tossup |
| Inside Elections | Solid D | Solid D | Tossup |
| Sabato's Crystal Ball | Likely D | Safe D | Lean R |
| Politico | Likely D | Solid D | Tossup |
| RCP | Lean D | Likely D | Tossup |
| Niskanen | Safe D | Safe D | Likely R |
| CNN | Solid D | Solid D | Tossup |
| The Economist | Safe D | Not given | Not given |
| CBS News | Likely D | Likely D | Tossup |
| 270towin | Likely D | Safe D | Tossup |
| ABC News | Solid D | Solid D | Tossup |
| NPR | Likely D | Likely D | Tossup |
| NBC News | Likely D | Solid D | Tossup |
| 538 | Likely D | Solid D | Tossup |

### Polling
#### Graphical summary (statewide)

Aggregate polls
| Source of poll aggregation | Dates administered | Dates updated | Joe Biden Democratic | Donald Trump Republican | Other/ Undecided | Margin |
| 270 to Win | October 6 – November 1, 2020 | November 3, 2020 | 51.8% | 40.2% | 8.0% | Biden +11.6 |
| FiveThirtyEight | until November 2, 2020 | November 3, 2020 | 53.3% | 40.3% | 6.4% | Biden +13.0 |
| Average | Average | Average | 53.1% | 40.3% | 7.2% | Biden +12.3 |

#### Statewide polls

| Poll source | Date(s) administered | Sample size | Margin of error | Donald Trump Republican | Joe Biden Democratic | Jo Jorgensen Libertarian | Howie Hawkins Green | Other | Undecided |
| Change Research | Oct 29 – Nov 2, 2020 | 1,024 (LV) | ± 3.5% | 40% | 52% | 4% | 2% | 1% | 1% |
| SurveyMonkey/Axios | Oct 20 – Nov 2, 2020 | 1,274 (LV) | ± 4% | 42% | 56% | – | – | – | – |
| Emerson College | Oct 29–31, 2020 | 611 (LV) | ± 3.9% | 43% | 54% | – | – | 2% | – |
| SurveyMonkey/Axios | Oct 1–28, 2020 | 1,995 (LV) | – | 43% | 56% | – | – | – | – |
| SurveyUSA/FairVote | Oct 23–27, 2020 | 1,007 (LV) | ± 3.7% | 40% | 53% | 2% | 2% | 1% | 2% |
| SurveyUSA/FairVote | Oct 23–27, 2020 | 1,007 (LV) | ± 3.7% | 42% | 55% | – | – | 1% | 2% |
| Colby College | Oct 21–25, 2020 | 879 (LV) | ± 3.3% | 38% | 51% | – | – | 4% | 8% |
| Pan Atlantic Research | Oct 2–6, 2020 | 600 (LV) | ± 4.5% | 40% | 50% | – | – | 6% | 4% |
| Critical Insights/Digital Research/Bangor Daily News | Sep 25 – Oct 4, 2020 | 466 (LV) | ± 4.4% | 40% | 51% | 3% | 1% | 2% | 3% |
| Critical Insights/Digital Research/Bangor Daily News | Sep 25 – Oct 4, 2020 | 466 (LV) | ± 4.4% | 40% | 52% | – | – | 5% | 3% |
| SurveyMonkey/Axios | Sep 1–30, 2020 | 729 (LV) | – | 38% | 60% | – | – | – | 2% |
| Data for Progress (D) | Sep 23–28, 2020 | 718 (LV) | ± 3.7% | 39% | 53% | 2% | 1% | – | 5% |
| Data for Progress (D) | Sep 23–28, 2020 | 718 (LV) | ± 3.7% | 41% | 55% | – | – | – | 4% |
| Colby College | Sep 17–23, 2020 | 847 (LV) | ± 3.4% | 39% | 50% | – | – | 4% | 6% |
| Suffolk University/Boston Globe | Sep 17–20, 2020 | 500 (LV) | ± 4.4% | 39% | 51% | 1% | 0% | 1% | 7% |
| Suffolk University/Boston Globe | Sep 17–20, 2020 | 500 (LV) | ± 4.4% | 39% | 51% | – | – | 2% | 8% |
| Siena College/NYT Upshot | Sep 11–16, 2020 | 663 (LV) | ± 5.1% | 38% | 55% | 0% | 0% | 1% | 6% |
| Quinnipiac University | Sep 10–14, 2020 | 1,183 (LV) | ± 2.9% | 38% | 59% | – | – | 0% | 3% |
| Fabrizio Ward/Hart Research Associates/AARP | Aug 30 – Sep 5, 2020 | 800 (LV) | ± 3.5% | 40% | 54% | – | – | 1% | 5% |
| SurveyMonkey/Axios | Aug 1–31, 2020 | 502 (LV) | – | 37% | 61% | – | – | – | 1% |
| Critical Insights/Digital Research/Bangor Daily News | Jul 28 – Aug 9, 2020 | 453 (LV) | – | 38% | 45% | – | – | 11% | 6% |
| Quinnipiac University | Jul 30 – Aug 3, 2020 | 805 (RV) | ± 3.7% | 37% | 52% | – | – | 6% | 4% |
| RMG Research | Jul 27 – Aug 2, 2020 | 500 (RV) | ± 4.5% | 39% | 50% | – | – | 7% | 4% |
| Data for Progress | Jul 24 – Aug 2, 2020 | 866 (LV) | – | 42% | 49% | 1% | 1% | – | 7% |
| Data for Progress | Jul 24 – Aug 2, 2020 | 866 (LV) | – | 43% | 53% | – | – | – | 4% |
| SurveyMonkey/Axios | Jul 1–31, 2020 | 733 (LV) | – | 41% | 57% | – | – | – | 1% |
| Public Policy Polling/AFSCME | Jul 23–24, 2020 | 962 (V) | – | 42% | 53% | – | – | – | 5% |
| Colby College/SocialSphere | Jul 18–24, 2020 | 888 (RV) | ± 3.9% | 38% | 50% | – | – | 5% | 7% |
| Public Policy Polling | Jul 2–3, 2020 | 1,022 (V) | ± 3.1% | 42% | 53% | – | – | – | 5% |
| SurveyMonkey/Axios | Jun 8–30, 2020 | 202 (LV) | – | 46% | 51% | – | – | – | 3% |
| Public Policy Polling | Mar 2–3, 2020 | 872 (V) | ± 3.3% | 42% | 52% | – | – | – | 6% |
| Public Policy Polling | Oct 11–13, 2019 | 939 (LV) | ± 3.2% | 42% | 54% | – | – | – | 4% |
| Fabrizio Ward/AARP | Jul 29–31, 2019 | 600 (LV) | ± 4.0% | 44% | 50% | – | – | – | 5% |
| Gravis Marketing | Jun 24, 2019 | 767 (RV) | ± 3.5% | 46% | 54% | – | – | – | – |

### Maine's 1st congressional district
#### Aggregate polls

| Source of poll aggregation | Dates administered | Dates updated | Joe Biden Democratic | Donald Trump Republican | Other/ Undecided | Margin |
| 270 to Win | October 6 – November 1, 2020 | November 3, 2020 | 57.8% | 35.0% | 7.2% | Biden +22.8 |
| Real Clear Politics | September 17 – October 6, 2020 | October 30, 2020 | 56.7% | 34.3% | 9.0% | Biden +22.4 |

#### with Donald Trump and Joe Biden

| Poll source | Date(s) administered | Sample size | Margin of error | Donald Trump Republican | Joe Biden Democratic | Jo Jorgensen Libertarian | Howie Hawkins Green | Other | Undecided |
| Change Research | Oct 29 – Nov 2, 2020 | 549 (LV) | – | 35% | 56% | 4% | 3% | – | – |
| Emerson College | Oct 29–31, 2020 | 310 (LV) | – | 39% | 58% | – | – | 3% | 1% |
| SurveyUSA/FairVote | Oct 23–27, 2020 | 498 (LV) | – | 35% | 59% | 2% | 2% | 1% | 2% |
| SurveyUSA/FairVote | Oct 23–27, 2020 | 498 (LV) | – | 36% | 61% | – | – | 1% | 2% |
| Colby College | Oct 21–25, 2020 | 426 (LV) | – | 34% | 56% | – | – | 4% | 7% |
| Pan Atlantic Research | Oct 2–6, 2020 | 300 (LV) | ± 6.4% | 37% | 54% | – | – | 7% | – |
| Critical Insights/Digital Research/Bangor Daily News | Sep 25 – Oct 4, 2020 | 232 (LV) | – | 30% | 62% | 3% | 1% | 2% | 3% |
| Colby College | Sep 17–23, 2020 | 416 (LV) | – | 36% | 54% | – | – | 5% | 5% |
| Suffolk University/Boston Globe | Sep 17–20, 2020 | 267 (LV) | – | 33% | 54% | 2% | 0% | 1% | 9% |
| Suffolk University/Boston Globe | Sep 17–20, 2020 | 267 (LV) | – | 34% | 55% | 0% | 0% | 2% | 9% |
| Quinnipiac University | Sep 10–14, 2020 | 707 (LV) | – | 32% | 64% | – | – | 1% | 3% |
| Fabrizio Ward/Hart Research Associates/AARP | Aug 30 – Sep 5, 2020 | 433 (LV) | – | 35% | 58% | – | – | – | – |
| Critical Insights/Digital Research/Bangor Daily News | Jul 28 – Aug 9, 2020 | 250 (LV) | – | 33% | 49% | – | – | 11% | 6% |
| Quinnipiac University | Jul 30 – Aug 3, 2020 | 392 (LV) | – | 30% | 61% | – | – | 6% | 3% |
| Colby College/SocialSphere | Jul 18–24, 2020 | 425 (LV) | – | 35% | 55% | – | – | 6% | 5% |
| Public Policy Polling | Oct 11–13, 2019 | 478 (LV) | – | 38% | 58% | – | – | – | 3% |

### Maine's 2nd congressional district
#### Aggregate polls

| Source of poll aggregation | Dates administered | Dates updated | Joe Biden Democratic | Donald Trump Republican | Other/ Undecided | Margin |
| 270 to Win | October 6 – November 1, 2020 | November 3, 2020 | 46.4% | 45.2% | 8.4% | Biden +1.2 |
| Real Clear Politics | September 17 – October 6, 2020 | October 27, 2020 | 44.7% | 45.0% | 10.3% | Trump +0.3 |

#### with Donald Trump and Joe Biden

| Poll source | Date(s) administered | Sample size | Margin of error | Donald Trump Republican | Joe Biden Democratic | Jo Jorgensen Libertarian | Howie Hawkins Green | Other | Undecided |
| Change Research | Oct 29 – Nov 2, 2020 | 475 (LV) | ± 4.6% | 46% | 47% | 4% | 1% | 0% | 1% |
| Change Research | Oct 29 – Nov 2, 2020 | 475 (LV) | ± 4.6% | 50% | 50% | – | – | – | – |
| Emerson College | Oct 29–31, 2020 | 301 (LV) | – | 47% | 50% | – | – | 3% | 0% |
| SurveyUSA/FairVote | Oct 23–27, 2020 | 509 (LV) | – | 45% | 48% | 2% | 2% | 1% | 2% |
| SurveyUSA/FairVote | Oct 23–27, 2020 | 509 (LV) | – | 49% | 51% | – | – | – | – |
| Colby College | Oct 21–25, 2020 | 453 (LV) | – | 42% | 46% | – | – | 4% | 9% |
| Pan Atlantic Research | Oct 2–6, 2020 | 300 (LV) | ± 6.4% | 43% | 47% | – | – | 6% | – |
| Critical Insights/Digital Research/Bangor Daily News | Sep 25 – Oct 4, 2020 | 234 (LV) | – | 49% | 41% | 2% | 1% | 1% | 3% |
| Colby College | Sep 17–23, 2020 | 425 (LV) | – | 43% | 46% | – | – | 3% | 8% |
| Suffolk University/Boston Globe | Sep 17–20, 2020 | 233 (LV) | – | 45% | 47% | 0% | 0% | 1% | 6% |
| Suffolk University/Boston Globe | Sep 17–20, 2020 | 233 (LV) | – | 45% | 47% | 0% | 0% | 1% | 6% |
| Siena College/NYT Upshot | Sep 11–16, 2020 | 440 (LV) | – | 45% | 47% | – | – | – | – |
| Quinnipiac University | Sep 10–14, 2020 | 476 (LV) | – | 44% | 53% | – | – | 0% | 3% |
| Fabrizio Ward/Hart Research Associates/AARP | Aug 30 – Sep 5, 2020 | 367 (LV) | – | 45% | 49% | – | – | – | – |
| Left of Centre PAC | Aug 25–28, 2020 | 400 (LV) | ± 4.9% | 49% | 48% | – | – | – | 3% |
| Critical Insights/Digital Research/Bangor Daily News | Jul 28 – Aug 9, 2020 | 249 (LV) | – | 38% | 39% | – | – | 12% | 11% |
| Quinnipiac University | Jul 30 – Aug 3, 2020 | 382 (RV) | – | 45% | 44% | – | – | 6% | 5% |
| Colby College/SocialSphere | Jul 18–24, 2020 | 449 (LV) | – | 42% | 45% | – | – | 4% | 9% |
| Public Policy Polling | Oct 11–13, 2019 | 461 (LV) | – | 46% | 49% | – | – | – | 4% |
Former candidates :
| Poll source | Date(s) administered | Sample size | Margin of error | Donald Trump (R) | Pete Buttigieg (D) | Undecided |
| Public Policy Polling | Oct 11–13, 2019 | 939 (LV) | ± 3.2% | 43% | 52% | 5% |
| Gravis Marketing | Jun 24, 2019 | 767 (RV) | ± 3.5% | 49% | 51% | – |
| Poll source | Date(s) administered | Sample size | Margin of error | Donald Trump (R) | Kamala Harris (D) | Undecided |
| Public Policy Polling | Oct 11–13, 2019 | 939 (LV) | ± 3.2% | 44% | 50% | 6% |
| Gravis Marketing | Jun 24, 2019 | 767 (RV) | ± 3.5% | 48% | 52% | – |
| Poll source | Date(s) administered | Sample size | Margin of error | Donald Trump (R) | Bernie Sanders (D) | Undecided |
| Public Policy Polling | Mar 2–3, 2020 | 872 (V) | ± 3.3% | 42% | 52% | 7% |
| Public Policy Polling | Oct 11–13, 2019 | 939 (LV) | ± 3.2% | 43% | 53% | 4% |
| Gravis Marketing | Jun 24, 2019 | 767 (RV) | ± 3.5% | 47% | 53% | – |
| Poll source | Date(s) administered | Sample size | Margin of error | Donald Trump (R) | Elizabeth Warren (D) | Undecided |
| Public Policy Polling | Oct 11–13, 2019 | 939 (LV) | ± 3.2% | 43% | 53% | 4% |
| Gravis Marketing | Jun 24, 2019 | 767 (RV) | ± 3.5% | 48% | 52% | – |
| Poll source | Date(s) administered | Sample size | Margin of error | Donald Trump (R) | Pete Buttigieg (D) | Undecided |
| Public Policy Polling | Oct 11–13, 2019 | 478 (LV) | – | 38% | 58% | 3% |
| Poll source | Date(s) administered | Sample size | Margin of error | Donald Trump (R) | Kamala Harris (D) | Undecided |
| Public Policy Polling | Oct 11–13, 2019 | 478 (LV) | – | 39% | 57% | 4% |
| Poll source | Date(s) administered | Sample size | Margin of error | Donald Trump (R) | Bernie Sanders (D) | Undecided |
| Public Policy Polling | Oct 11–13, 2019 | 478 (LV) | – | 39% | 57% | 4% |
| Poll source | Date(s) administered | Sample size | Margin of error | Donald Trump (R) | Elizabeth Warren (D) | Undecided |
| Public Policy Polling | Oct 11–13, 2019 | 478 (LV) | – | 39% | 57% | 3% |
| Poll source | Date(s) administered | Sample size | Margin of error | Donald Trump (R) | Pete Buttigieg (D) | Undecided |
| Public Policy Polling | Oct 11–13, 2019 | 461 (LV) | – | 49% | 44% | 7% |
| Poll source | Date(s) administered | Sample size | Margin of error | Donald Trump (R) | Kamala Harris (D) | Undecided |
| Public Policy Polling | Oct 11–13, 2019 | 461 (LV) | – | 49% | 43% | 8% |
| Poll source | Date(s) administered | Sample size | Margin of error | Donald Trump (R) | Bernie Sanders (D) | Undecided |
| Public Policy Polling | Oct 11–13, 2019 | 461 (LV) | – | 47% | 49% | 4% |
| Poll source | Date(s) administered | Sample size | Margin of error | Donald Trump (R) | Elizabeth Warren (D) | Undecided |
| Public Policy Polling | Oct 11–13, 2019 | 461 (LV) | – | 48% | 47% | 5% |
Hypothetical polling :
| Poll source | Date(s) administered | Sample size | Margin of error | Donald Trump (R) | Generic Democrat (D) | Undecided |
| Colby College/SocialSphere | Feb 10–13, 2020 | 1,008 (LV) | ± 3.1% | 34% | 37% | 30% |
| Poll source | Date(s) administered | Sample size | Margin of error | Donald Trump (R) | Generic Opponent | Undecided |
| Pan Atlantic Research | Mar 4–13, 2019 | 500 (LV) | ± 4.4% | 27% | 53% | 19% |
| Poll source | Date(s) administered | Sample size | Margin of error | Donald Trump (R) | Generic Democrat (D) | Undecided |
| Colby College/SocialSphere | Feb 10–13, 2020 | 515 (LV) | – | 28% | 41% | 31% |
| Poll source | Date(s) administered | Sample size | Margin of error | Donald Trump (R) | Generic Democrat (D) | Undecided |
| Colby College/SocialSphere | Feb 10–13, 2020 | 493 (LV) | – | 41% | 34% | 28% |

### Results

2020 United States presidential election in Maine :
| Party | Party | Candidate | Votes | % | ±% |
| | Democratic | Joe Biden Kamala Harris | 435,072 | 53.09% | +5.26% |
| | Republican | Donald J. Trump Michael R. Pence | 360,737 | 44.02% | −0.85% |
| | Libertarian | Jo Jorgensen Spike Cohen | 14,152 | 1.73% | −3.36% |
| | Green | Howie Hawkins Angela Walker | 8,230 | 1.00% | −0.91% |
| | Alliance | Rocky De La Fuente Darcy Richardson | 1,183 | 0.15% | N/A |
| | Write-in | Write-in | 87 | 0.01% | N/A |
| Total votes | Total votes | Total votes | 819,461 | 100.00% | |
| | Democratic win | Democratic win | Democratic win | Democratic win | Democratic win |

#### By county

| County | Joe Biden Democratic | Joe Biden Democratic | Donald Trump Republican | Donald Trump Republican | Various candidates Other parties | Various candidates Other parties | Margin | Margin | Total votes cast |
| County | # | % | # | % | # | % | # | % | Total votes cast |
| Androscoggin | 27,617 | 47.04% | 29,268 | 49.85% | 1,822 | 3.11% | -1,651 | -2.81% | 58,707 |
| Aroostook | 13,956 | 39.04% | 21,113 | 59.06% | 677 | 1.90% | -7,157 | -20.02% | 35,746 |
| Cumberland | 128,759 | 66.45% | 59,584 | 30.75% | 5,422 | 2.80% | 69,175 | 35.70% | 193,765 |
| Franklin | 8,069 | 46.40% | 8,754 | 50.34% | 567 | 3.26% | -685 | -3.94% | 17,390 |
| Hancock | 19,369 | 54.83% | 14,982 | 42.41% | 974 | 2.76% | 4,387 | 12.42% | 35,325 |
| Kennebec | 34,902 | 48.57% | 34,721 | 48.32% | 2,235 | 3.11% | 181 | 0.25% | 71,858 |
| Knox | 15,110 | 58.72% | 9,982 | 38.79% | 642 | 2.49% | 5,128 | 19.93% | 25,734 |
| Lincoln | 12,684 | 53.76% | 10,256 | 43.47% | 654 | 2.77% | 2,428 | 10.29% | 23,594 |
| Oxford | 14,755 | 44.06% | 17,698 | 52.84% | 1,039 | 3.10% | -2,943 | -8.78% | 33,492 |
| Penobscot | 37,713 | 44.23% | 44,825 | 52.57% | 2,731 | 3.20% | -7,112 | -8.34% | 85,269 |
| Piscataquis | 3,517 | 35.50% | 6,143 | 62.00% | 248 | 2.50% | -2,626 | -26.50% | 9,908 |
| Sagadahoc | 13,528 | 56.28% | 9,755 | 40.58% | 755 | 3.14% | 3,773 | 15.70% | 24,038 |
| Somerset | 10,199 | 36.98% | 16,644 | 60.35% | 735 | 2.67% | -6,445 | -23.37% | 27,578 |
| Waldo | 12,345 | 50.76% | 11,196 | 46.03% | 781 | 3.21% | 1,149 | 4.73% | 24,322 |
| Washington | 6,761 | 38.95% | 10,194 | 58.73% | 402 | 2.32% | -3,433 | -19.78% | 17,357 |
| York | 71,189 | 54.90% | 54,817 | 42.28% | 3,653 | 2.82% | 16,372 | 12.62% | 129,659 |
| Totals | 435,072 | 53.09% | 360,770 | 44.03% | 23,619 | 2.88% | 74,302 | 9.06% | 819,461 |
Counties that flipped from Republican to Democratic
* Kennebec (largest municipality: Augusta)
* Democratic — +7.5–10%
* Democratic — +5–7.5%
* Democratic — +2.5–5%
* Democratic — +0–2.5%
* Republican — +0–2.5%
* Republican — +2.5–5%
* Republican — +5–7.5%
* Republican — +7.5–10%
* Democratic — +7.5–10%
* Democratic — +5–7.5%
* Democratic — +2.5–5%
* Democratic — +0–2.5%
* Republican — +0–2.5%
* Republican — +2.5–5%
* Republican — +5–7.5%
* Republican — +7.5–10%
* Democratic  Hold  Gain from Republican Republican  Hold

#### By congressional district

Biden won the first of Maine's two congressional districts. Trump won the other district, which elected a Democrat to the House of Representatives in the same election cycle.
| District | Biden | Biden | Trump | Trump | Other | Other | Representative |
| District | # | % | # | % | # | % | Representative |
| 1st | 266,376 | 60.11% | 164,045 | 37.02% | 12,691 | 2.86% | Chellie Pingree |
| 2nd | 168,696 | 44.82% | 196,692 | 52.26% | 10,961 | 2.91% | Jared Golden |

## Analysis

Biden carried the Pine Tree State by a 9.07% margin over Trump, improving over Hillary Clinton's 3% win margin in 2016. Biden handily carried Maine's 1st congressional district by 23%, while Trump carried its 2nd congressional district by 7.4%, winning a single electoral vote from the state. This marked the first election in history in which Maine and Nebraska both split their electoral votes. Ranked-choice tabulation was ultimately not used as Biden earned a majority statewide and in the 1st district, while Trump earned a majority in the 2nd district. Biden narrowly flipped Kennebec County (home to the state capital, Augusta) four years after Clinton lost it. All other counties favored the same party they did in 2016.
Maine is located in New England, an area that has become a Democratic Party stronghold. It was once a classic Rockefeller Republican state, but social issues have moved it to the Democratic column. The last Republican to win all its electoral votes was George H. W. Bush in 1988. Per exit polls by the Associated Press, Biden's strength in Maine came from liberals, with Biden winning whites 54%–44%, including 56% of white women. Biden was even competitive with Trump among Maine's gun owners, a traditionally Republican interest group, capturing 42% of their vote to Trump's 57%.
This was the first presidential election since 2004 in which Maine's 2nd congressional district backed the losing candidate, and the 2nd district is the only part of the so-called Blue Wall which Trump won in 2020, referring to states and electoral-vote areas that voted Democratic in every election from 1992 to 2012; Biden thus became the first Democrat since 1976 to win the White House without carrying this district, and consequently also the first since said election to win without carrying all of the electoral votes located in New England. Biden also became the first Democrat since 1892 to win the White House without carrying Androscoggin County, the first since 1976 to do so without carrying Aroostook, Franklin, Oxford, Penobscot, or Washington counties, and the first since 1992 to do so without carrying Somerset County.

### Edison exit polls

2020 presidential election in Maine by demographic subgroup (Edison exit polling) :
| Demographic subgroup | Biden | Trump | % of total vote |
| Total vote | 53.09 | 44.02 | 100 |
| Ideology ||||
| Liberals | 93 | 4 | 28 |
| Moderates | 61 | 37 | 42 |
| Conservatives | 9 | 89 | 30 |
| Party ||||
| Democrats | 94 | 5 | 28 |
| Republicans | 9 | 89 | 31 |
| Independents | 59 | 35 | 41 |
| Gender ||||
| Men | 42 | 52 | 41 |
| Women | 61 | 38 | 59 |
| Race/ethnicity ||||
| White | 53 | 44 | 95 |
| Non-white | 47 | 46 | 5 |
| Age ||||
| 18–24 years old | 66 | 31 | 8 |
| 25–29 years old | 53 | 37 | 7 |
| 30–39 years old | 59 | 38 | 13 |
| 40–49 years old | 38 | 56 | 13 |
| 50–64 years old | 49 | 50 | 31 |
| 65 and older | 59 | 40 | 28 |
| Sexual orientation ||||
| LGBT | – | – | 6 |
| Not LGBT | 54 | 43 | 94 |
| Education ||||
| High school or less | 35 | 62 | 21 |
| Some college education | 50 | 47 | 28 |
| Associate degree | 47 | 49 | 12 |
| Bachelor's degree | 67 | 32 | 22 |
| Postgraduate degree | 66 | 30 | 17 |
| Issue regarded as most important ||||
| Racial inequality | 96 | 3 | 15 |
| Coronavirus | 88 | 10 | 21 |
| Economy | 6 | 92 | 35 |
| Crime and safety | – | – | 8 |
| Health care | – | – | 11 |
| Region ||||
| Portland area | 73 | 23 | 17 |
| Southern Maine | 54 | 43 | 36 |
| Bangor/Auburn | 48 | 48 | 18 |
| Downeast/Upcountry | 43 | 55 | 29 |
| Area type ||||
| Urban | – | – | 5 |
| Suburban | 55 | 42 | 45 |
| Rural | 50 | 48 | 51 |
| Family's financial situation today ||||
| Better than four years ago | 16 | 80 | 38 |
| Worse than four years ago | 91 | 8 | 21 |
| About the same | 66 | 32 | 38 |