† Citizen voting-age population estimated for prior cycles; 2004 predates the ACS and is extrapolated. Source: ACS 5-year, table B05003.
——
D+60R+60
11 counties by 2024 margin · County returns · MIT Election Lab
People and households
Who lives here
Exact values for this place, its state, and the United States.
Race · ethnicity · ancestry
Communities and origins
GroupPortland-AuburnUnited States
English21.7%9.5%
Irish17.2%9.4%
French11.5%1.6%
German8.0%12.5%
French Canadian6.8%—
Italian6.1%4.8%
American5.1%5.3%
Scottish4.5%1.3%
Mexican0.6%11.3%
Puerto Rican0.5%1.8%
African American†1.1%9.9%
Somali0.2%—
African0.2%0.5%
Filipino0.2%0.9%
Chinese0.2%1.3%
Hispanic or Latino counts residents of any race; the race groups count only their non-Hispanic residents, so the groups are mutually exclusive and sum to 100%. Expand a row to see ancestries reported within that group.
Age and life stage
Measure
Portland-Auburn
United States
Median age
44.9
39.1
Age 18–24
7.8%
9.2%
Age 65 and older
22.5%
17.2%
Household economy
Measure
Portland-Auburn
United States
Median household income
$81,554
$84,427
Poverty rate
9.5%
12.5%
Bachelor's degree or higher (25+)
38.6%
35.6%
Languages at home
Measure
Portland-Auburn
United States
Speaks a non-English language at home
6.1%
22.3%
Spanish
1.0%
13.6%
French (incl. Cajun & Haitian)
2.2%
0.7%
Religious landscape
Measure
Portland-Auburn
United States
Catholic
17.2%
18.6%
Evangelical Protestant
5.5%
16.5%
Unclaimed / not counted
68.3%
51.5%
American Community Survey 2024 5-year (CVAP, income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024 · 2020 U.S. Religion Census (ASARB) — congregational adherents; unclaimed is the residual not counted by congregations.
Portland-Auburn, Maine
presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
1892
−10.1%
1896
−38.4%
1900
−22.0%
1904
−32.2%
1908
−25.4%
1912
+19.2%
1916
−0.9%
1920
−32.6%
1924
−43.1%
1928
−32.0%
1932
−10.2%
1936
−7.6%
1940
+2.9%
1944
+0.3%
1948
−10.2%
1952
−28.2%
1956
−37.1%
1960
−8.8%
1964
+39.8%
1968
+14.7%
1972
−21.3%
1976
+0.7%
1980
−4.1%
1984
−21.9%
1988
−13.4%
1992
+8.4%
1996
+20.7%
2000
+6.9%
2004
+10.7%
2008
+20.6%
2012
+18.0%
2016
+7.1%
2020
+14.4%
2024
+12.4%
DemocraticRepublican
34 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024). Swing · margin change from the prior cycle. vs U.S. · margin relative to the national result that year.
Year
Won
Democratic
Republican
Other
Margin
Swing
vs U.S.
Total
D
55.2%Harris350,801
42.7%Trump271,787
2.1%
D+12.4
R+2.0
D+13.9
635,985
D
55.3%Biden350,902
40.9%Trump259,602
3.8%
D+14.4
D+7.3
D+9.9
634,351
D
49.9%Clinton283,222
42.8%Trump242,908
7.2%
D+7.1
R+10.9
D+5.0
567,099
D
57.7%Obama312,686
39.7%Romney214,962
2.6%
D+18.0
R+2.5
D+14.2
541,823
D
59.4%Obama328,844
38.8%McCain214,987
1.8%
D+20.6
D+9.9
D+13.3
554,010
D
54.4%Kerry302,802
43.8%Bush243,491
1.8%
D+10.7
D+3.8
D+13.1
556,256
D
50.0%Gore242,865
43.2%Bush209,459
6.8%
D+6.9
R+13.8
D+6.4
485,320
D
52.0%Clinton231,295
31.4%Dole139,446
16.6%
D+20.7
D+12.2
D+12.1
444,541
D
39.6%Clinton196,591
31.2%Bush154,722
29.2%
D+8.4
D+21.8
D+2.9
496,423
R
42.9%Dukakis176,336
56.3%Bush231,469
0.8%
R+13.4
D+8.5
R+5.7
411,088
R
38.9%Mondale156,498
60.7%Reagan244,540
0.4%
R+21.9
R+17.8
R+3.7
402,562
R
41.8%Carter158,206
45.9%Reagan173,584
12.3%
R+4.1
R+4.8
D+5.7
378,403
D
49.0%Carter171,468
48.3%Ford169,065
2.7%
D+0.7
D+22.0
R+1.4
349,809
R
39.2%McGovern119,469
60.6%Nixon184,329
0.2%
R+21.3
R+36.0
D+1.8
304,384
D
56.5%Humphrey161,739
41.8%Nixon119,749
1.7%
D+14.7
R+25.2
D+15.4
286,496
D
69.9%Johnson194,361
30.1%Goldwater83,620
0.1%
D+39.8
D+48.6
D+17.2
278,163
R
45.6%Kennedy138,819
54.4%Nixon165,553
0.0%
R+8.8
D+28.4
R+8.9
304,377
R
31.4%Stevenson83,660
68.6%Eisenhower182,529
0.0%
R+37.1
R+9.0
R+21.7
266,199
R
35.8%Stevenson94,911
64.0%Eisenhower169,549
0.2%
R+28.2
R+18.0
R+17.4
264,868
R
44.3%Truman90,727
54.6%Dewey111,648
1.1%
R+10.2
R+10.5
R+14.7
204,625
D
50.1%Roosevelt111,447
49.8%Dewey110,765
0.1%
D+0.3
R+2.6
R+7.2
222,430
D
51.4%Roosevelt119,204
48.5%Willkie112,401
0.1%
D+2.9
D+10.6
R+7.0
231,850
R
45.0%Roosevelt98,152
52.6%Landon114,834
2.4%
R+7.6
D+2.6
R+31.9
218,212
R
44.4%Roosevelt93,247
54.6%Hoover114,752
0.9%
R+10.2
D+21.7
R+28.0
209,988
R
33.8%Smith63,040
65.8%Hoover122,659
0.4%
R+32.0
D+11.1
R+14.5
186,456
R
25.3%Davis36,250
68.4%Coolidge97,941
6.2%
R+43.1
R+10.5
R+17.9
143,123
R
33.0%Cox47,333
65.6%Harding94,010
1.3%
R+32.6
R+31.7
R+6.4
143,238
R
48.4%Wilson45,366
49.4%Hughes46,225
2.2%
R+0.9
R+20.1
R+4.1
93,660
D
41.0%Wilson36,640
21.8%Taft19,488
37.1%
D+19.2
D+44.6
R+0.3
89,286
R
35.3%Bryan26,587
60.8%Taft45,712
3.9%
R+25.4
D+6.8
R+15.9
75,223
R
31.9%Parker22,323
64.1%Roosevelt44,845
4.0%
R+32.2
R+10.2
R+12.5
69,939
R
37.6%Bryan29,020
59.6%McKinley46,024
2.8%
R+22.0
D+16.4
R+14.5
77,191
R
29.1%Bryan23,295
67.5%McKinley54,003
3.4%
R+38.4
R+28.3
R+32.3
79,981
R
43.0%Cleveland34,685
53.0%Harrison42,803
4.0%
R+10.1
—
R+11.7
80,720
voter registration
Registered voters
By party of registration, over time
Party registration · 2026R+12.2
vs
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
Democratic23.6%Republican35.9%Unaffiliated40.5%
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
Domestic migration in Portland-Auburn in Portland-Auburn: net domestic migration by year
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.
Akashic
Political twins — media markets
The media markets whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
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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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.
