Allegheny County, Pennsylvania
AkashicAllegheny County, PAHarrisD+20.3
2024 precinct map of Allegheny CountyPrecinct-level 2024 presidential results for Allegheny County, with each precinct boundary colored by Democratic-vs-Republican margin, and gold where an independent or third-party candidate carried the precinct.
How it voted
Share of the 2024 vote
| Kamala Harris ✓Democratic | 59.7% | 429,916 |
|---|---|---|
| Donald TrumpRepublican | 39.4% | 283,595 |
| Jill SteinGreen | 0.5% | 3,691 |
Harris +50Trump +50
1,327 precincts · 720,504 votes. Hover any precinct for its result.
The precinct map shows the 2024 presidential vote; the timeline scrubs the county’s overall result across 1892–2024.
38 presidential elections
| Year | Won | Democratic | Republican | Other | Margin | Total |
|---|---|---|---|---|---|---|
| D | 59.7%Harris429,916 | 39.4%Trump283,595 | 0.5%Stein3,691 | 720,504 | ||
| D | 59.6%Biden429,065 | 39.2%Trump282,324 | 1.2%Jorgensen8,344 | 719,733 | ||
| D | 55.9%Clinton367,617 | 39.5%Trump259,480 | 2.5%Johnson16,102 | 657,189 | ||
| D | 56.5%Obama352,687 | 42.0%Romney262,039 | 0.8%Johnson5,196 | 623,827 | ||
| D | 57.3%Obama373,153 | 41.8%McCain272,347 | 0.9%Nader5,936 | 651,436 | ||
| D | 57.2%Kerry368,912 | 42.1%Bush271,925 | 0.7%Badnarik4,632 | 645,469 | ||
| D | 56.6%Gore329,963 | 40.4%Bush235,361 | 1.8%Nader10,575 | 582,478 | ||
| D | 52.8%Clinton284,480 | 37.9%Dole204,067 | 7.9%Perot42,309 | 538,615 | ||
| D | 52.8%Clinton324,004 | 29.8%Bush183,035 | 16.8%Perot103,470 | 614,187 | ||
| D | 59.5%Dukakis348,814 | 39.4%Bush231,137 | 1.1%McCarthy6,200 | 586,151 | ||
| D | 56.0%Mondale372,576 | 42.8%Reagan284,692 | 1.3%Johnson8,480 | 665,748 | ||
| D | 47.9%Carter297,464 | 43.7%Reagan271,850 | 8.4%Anderson52,104 | 621,418 | ||
| D | 50.7%Carter328,343 | 46.8%Ford303,127 | 2.5%McCarthy16,387 | 647,857 | ||
| R | 42.3%McGovern282,496 | 55.6%Nixon371,737 | 2.1%Schmitz14,302 | 668,535 | ||
| D | 51.1%Humphrey364,906 | 37.1%Nixon264,790 | 11.8%Wallace84,121 | 713,817 | ||
| D | 66.0%Johnson475,207 | 33.6%Goldwater241,707 | 0.4%Hass2,811 | 719,725 | ||
| D | 57.1%Kennedy428,455 | 42.8%Nixon320,970 | 0.2%Byrd1,293 | 750,718 | ||
| R | 45.0%Stevenson315,989 | 54.8%Eisenhower384,939 | 0.2%Andrews1,102 | 702,030 | ||
| D | 50.6%Stevenson370,945 | 49.0%Eisenhower359,224 | 0.4%Hallinan2,903 | 733,072 | ||
| D | 54.9%Truman326,303 | 42.6%Dewey253,272 | 2.5%Thurmond14,931 | 594,506 | ||
| D | 57.1%Roosevelt350,690 | 42.5%Dewey261,218 | 0.4%Thomas2,393 | 614,301 | ||
| D | 58.0%Roosevelt367,926 | 41.5%Willkie263,285 | 0.5%Thomas2,987 | 634,198 | ||
| D | 65.2%Roosevelt366,593 | 31.3%Landon176,224 | 3.4%Lemke19,377 | 562,194 | ||
| D | 52.9%Roosevelt189,839 | 42.4%Hoover152,326 | 4.7%Thomas16,838 | 359,003 | ||
| R | 42.4%Smith160,733 | 56.9%Hoover215,626 | 0.8%Thomas2,850 | 379,209 | ||
| R | 8.7%Davis21,984 | 59.0%Coolidge149,296 | 32.3%La Follette81,733 | 253,013 | ||
| R | 20.1%Cox40,278 | 69.2%Harding138,908 | 10.7%Debs21,530 | 200,716 | ||
| R | 37.7%Wilson52,833 | 55.2%Hughes77,483 | 7.1%Benson9,948 | 140,264 | ||
| O | 24.9%Wilson31,417 | 18.8%Taft23,822 | 56.3%Roosevelt71,147 | 126,386 | ||
| R | 29.2%Bryan35,655 | 60.8%Taft74,080 | 10.0%Debs12,170 | 121,905 | ||
| R | 18.2%Parker21,541 | 76.5%Roosevelt90,594 | 5.3%Debs6,270 | 118,405 | ||
| R | 26.6%Bryan27,311 | 69.9%McKinley71,780 | 3.4%Woolley3,533 | 102,624 | ||
| R | 27.6%Bryan29,809 | 70.9%McKinley76,691 | 1.5%Palmer1,674 | 108,174 | ||
| R | 39.3%Cleveland30,867 | 58.3%Harrison45,788 | 2.4%Weaver1,849 | 78,504 | ||
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presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1892 | −19.0% |
| 1896 | −43.3% |
| 1900 | −43.3% |
| 1904 | −58.3% |
| 1908 | −31.5% |
| 1912 | +6.0% |
| 1916 | −17.6% |
| 1920 | −49.1% |
| 1924 | −50.3% |
| 1928 | −14.5% |
| 1932 | +10.4% |
| 1936 | +33.9% |
| 1940 | +16.5% |
| 1944 | +14.6% |
| 1948 | +12.3% |
| 1952 | +1.6% |
| 1956 | −9.8% |
| 1960 | +14.3% |
| 1964 | +32.4% |
| 1968 | +14.0% |
| 1972 | −13.3% |
| 1976 | +3.9% |
| 1980 | +4.1% |
| 1984 | +13.2% |
| 1988 | +20.1% |
| 1992 | +23.0% |
| 1996 | +14.9% |
| 2000 | +16.2% |
| 2004 | +15.0% |
| 2008 | +15.5% |
| 2012 | +14.5% |
| 2016 | +16.5% |
| 2020 | +20.4% |
| 2024 | +20.3% |
DemocraticRepublican
Allegheny County, Pennsylvania's second-most-populous, delivered a 20-point Democratic margin in 2024, making it one of the state's most decisive counterweights to rural Republican strongholds in statewide contests.
Across the recorded series it reached a Democratic high of 33.9 points in 1936 and a Republican high of 58.3 points in 1904. The 2024 margin was 20.3 points.
A population of 1,238,177, a 76% non-Hispanic-white share, and a median household income of $78,548 describe the county. The county's voting pattern over the last decade is most similar to that of District of Columbia and Jackson County.
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Compare two places, side by side
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All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Allegheny County, Pennsylvania. Akashic. https://akashic.app/county/42003/. Accessed May 20, 2026. License: CC BY 4.0.
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Frequently asked questions
How did Allegheny County, Pennsylvania vote in 2024?
In 2024, Allegheny County, Pennsylvania voted Democratic by 20.3 points (D+20.3), carried by the Democratic candidate. Out of 720,504 votes cast, 429,916 went Democratic and 283,595 went Republican.
When did Allegheny County, Pennsylvania last vote Republican?
The most recent presidential election in which Allegheny County, Pennsylvania voted Republican was 1972.
How many people live in Allegheny County, Pennsylvania?
Allegheny County, Pennsylvania has a population of 1,238,177 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Allegheny County, Pennsylvania?
Median household income in Allegheny County, Pennsylvania is $78,548 — below the national median of $80,734. The Pennsylvania state median is $77,971.
What is the political history of Allegheny County, Pennsylvania?
Akashic tracks 38 presidential elections in Allegheny County, Pennsylvania from 1876 to 2024. Of those, 22 went Democratic and 11 went Republican.