HarrisDemocratic55.2%350,801TrumpRepublican42.7%271,787OtherAll other candidates2.1%13,397
D+12.4- Lead
- 79,014
- Total
- 635,985
- vs nation
- D+13.9
Akashicmedia market
Portland-Auburn
Office (updates table and map)
President margin by year
Place winner margin
11 counties by 2024 margin · County returns · MIT Election Lab
President results by year
Vote totals, margins, and source status
BidenDemocratic55.3%350,902TrumpRepublican40.9%259,602OtherAll other candidates3.8%23,847
D+14.4- Lead
- 91,300
- Total
- 634,351
- vs nation
- D+9.9
ClintonDemocratic49.9%283,222TrumpRepublican42.8%242,908OtherAll other candidates7.2%40,969
D+7.1- Lead
- 40,314
- Total
- 567,099
- vs nation
- D+5.0
ObamaDemocratic57.7%312,686RomneyRepublican39.7%214,962OtherAll other candidates2.6%14,175
D+18.0- Lead
- 97,724
- Total
- 541,823
- vs nation
- D+14.2
ObamaDemocratic59.4%328,844McCainRepublican38.8%214,987OtherAll other candidates1.8%10,179
D+20.6- Lead
- 113,857
- Total
- 554,010
- vs nation
- D+13.3
KerryDemocratic54.4%302,802BushRepublican43.8%243,491OtherAll other candidates1.8%9,963
D+10.7- Lead
- 59,311
- Total
- 556,256
- vs nation
- D+13.1
GoreDemocratic50.0%242,865BushRepublican43.2%209,459OtherAll other candidates6.8%32,996
D+6.9- Lead
- 33,406
- Total
- 485,320
- vs nation
- D+6.4
ClintonDemocratic52.0%231,295DoleRepublican31.4%139,446OtherAll other candidates16.6%73,800
D+20.7- Lead
- 91,849
- Total
- 444,541
- vs nation
- D+12.1
Key facts
- 2024 presidential margin
- D+12.4MIT Election Lab
- Population
- 1,052,9192024 5-year
- Population density
- 98 / sq mi2024 5-year · TIGER/Line
- Land area
- 10,738 sq miTIGER/Line
- Median household income
- $81,5542024 5-year
- White (non-Hispanic)
- 89.4%2024 5-year
- Black
- 2.1%2024 5-year
- Hispanic / Latino
- 2.3%2024 5-year
- Peak Democratic margin
- D+39.8 in 1964MIT Election Lab
- Peak Republican margin
- R+43.1 in 1924MIT Election Lab
- Most similar
- Burlington-Plattsburgh, VT · twin score 93.9
presidential history
Party record book
Portland-Auburn · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1892–2024 · 34 presidential cycles
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Lyndon B. Johnson1964
69.9%
194,361 votes · D+39.8
Runner-up · Barack Obama, 2008 · 59.4%
Republican
Dwight D. Eisenhower1956
68.6%
182,529 votes · R+37.1
Runner-up · Calvin Coolidge, 1924 · 68.4%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
350,902votes
55.3% of the vote · D+14.4
Runner-up · Kamala Harris, 2024 · 350,801 votes
Republican
Donald Trump2024
271,787votes
42.7% of the vote · D+12.4
Runner-up · Donald Trump, 2020 · 259,602 votes
Best relative to the U.S.
This Place’s margin against the national margin in the same election — positive when it leaned toward the party more than the country did.
Democratic
Lyndon B. Johnson1964
+17.2pts D vs U.S.
Place D+39.8 · U.S. D+22.6
Runner-up · Hubert Humphrey, 1968 · +15.4 pts
Republican
William McKinley1896
+32.3pts R vs U.S.
Place R+38.4 · U.S. R+6.1
Runner-up · Alf Landon, 1936 · +31.9 pts
U.S. House elections · 3 House
Senate and governor results are in the Office selector at the top of this page.
U.S. House
On a multi-state Place, each row sums votes cast in the separate U.S. House races held inside the Place that year. It is a geographic vote total, not one contest or a seat tally.
voter registration
Registered voters
By party of registration, over time
Party registration · 2026R+12.2
Presidential vote · 2024D+12.4
Portland-Auburn registers Republican but votes Democratic — a 25-point gap between how voters register and how they vote, the signature of ancestral registration that trails realignment.
61,038 registered voters · 2026 · down from 737,833 in 2025
domestic migration
Who moves in and out
Net domestic migration over time
+6,038 net domestic migration · 2025
20112025
Net +66,136 over 2011–2025 · gain loss
| Year | Net domestic migration |
|---|---|
| 2011 | +155 |
| 2012 | −217 |
| 2013 | +113 |
| 2014 | +2,816 |
| 2015 | +699 |
| 2016 | +3,287 |
| 2017 | +4,777 |
| 2018 | +6,021 |
| 2019 | +5,870 |
| 2021 | +15,369 |
| 2022 | +10,409 |
| 2023 | +6,708 |
| 2024 | +4,091 |
| 2025 | +6,038 |
The Portland-Auburn market covers roughly half of Maine's population and consistently posts the state's most competitive federal margins, making it a reliable bellwether for statewide outcomes.
Across the recorded series it reached a Democratic high of 39.8 points in 1964 and a Republican high of 43.1 points in 1924. Between 2020 and 2024 the market moved 2.0 points toward the Republican candidate; the 2024 margin was 12.4 points.
A population of 1,052,919, a 89% non-Hispanic-white share, and a median household income of $81,554 describe the market. The market's voting pattern over the last decade is most similar to that of Burlington-Plattsburgh and Eugene.
Political twins — media markets
The media markets whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Burlington-Plattsburgh
Vermont
93.9twin score
2000–2024 trajectory≠ Scottish ancestry
Eugene
Oregon
82.9twin score
2004–2024 trajectory≠ French ancestry
Bangor
Maine
82.4twin score
median age% Evangelical% unaffiliated≠ college share
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Portland-Auburn, Maine. Akashic. https://akashic.app/dma/500/. Accessed May 20, 2026. License: CC BY 4.0.
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Places within Portland-Auburn
Frequently asked questions
How did Portland-Auburn, Maine vote in 2024?
In 2024, Portland-Auburn, Maine voted Democratic by 12.4 points (D+12.4), carried by the Democratic candidate. Out of 635,985 votes cast, 350,801 went Democratic and 271,787 went Republican.
When did Portland-Auburn, Maine last vote Republican?
The most recent presidential election in which Portland-Auburn, Maine voted Republican was 1988.
How many people live in Portland-Auburn, Maine?
Portland-Auburn, Maine has a population of 1,052,919 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Portland-Auburn, Maine?
Median household income in Portland-Auburn, Maine is $81,554 — above the national median of $80,734. The Maine state median is $74,733.
What is the political history of Portland-Auburn, Maine?
Akashic tracks 34 presidential elections in Portland-Auburn, Maine from 1892 to 2024. Of those, 15 went Democratic and 19 went Republican.