Washington County, Oregon
AkashicWashington County, ORHarrisD+33.7
2024 precinct map of Washington CountyPrecinct-level 2024 presidential results for Washington 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 | 64.8% | 193,013 |
|---|---|---|
| Donald TrumpRepublican | 31.1% | 92,590 |
| Robert F KennedyWe The People | 1.4% | 4,312 |
Harris +50Trump +50
155 precincts · 297,949 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 | 64.8%Harris193,013 | 31.1%Trump92,590 | 1.4%Kennedy4,312 | 297,949 | ||
| D | 65.5%Biden209,940 | 30.9%Trump99,073 | 2.0%Jorgensen6,398 | 320,326 | ||
| D | 56.9%Clinton153,251 | 30.9%Trump83,197 | 5.7%Johnson15,266 | 269,232 | ||
| D | 57.1%Obama135,291 | 39.6%Romney93,974 | 1.5%Johnson3,543 | 237,023 | ||
| D | 59.8%Obama141,544 | 37.7%McCain89,185 | 2.5%Nader5,903 | 236,632 | ||
| D | 52.4%Kerry121,140 | 46.4%Bush107,223 | 1.3%Other2,945 | 231,308 | ||
| D | 48.7%Gore90,662 | 46.3%Bush86,091 | 3.8%Nader6,985 | 185,974 | ||
| D | 48.0%Clinton76,619 | 40.8%Dole65,221 | 7.2%Perot11,446 | 159,755 | ||
| D | 40.4%Clinton67,528 | 34.2%Bush57,146 | 24.9%Perot41,575 | 167,195 | ||
| R | 46.3%Dukakis59,837 | 51.9%Bush67,018 | 1.8%Paul2,356 | 129,211 | ||
| R | 36.9%Mondale44,602 | 62.8%Reagan75,877 | 0.3%Other417 | 120,896 | ||
| R | 34.0%Carter37,915 | 51.3%Reagan57,165 | 14.6%Anderson16,275 | 111,355 | ||
| R | 38.5%Carter34,847 | 57.8%Ford52,376 | 3.7%McCarthy3,388 | 90,611 | ||
| R | 37.1%McGovern27,890 | 58.4%Nixon43,958 | 4.5%Schmitz3,390 | 75,238 | ||
| R | 38.3%Humphrey22,943 | 57.0%Nixon34,105 | 4.7%Wallace2,794 | 59,842 | ||
| D | 58.0%Johnson29,081 | 41.5%Goldwater20,813 | 0.6%Hass287 | 50,181 | ||
| R | 41.1%Kennedy17,736 | 58.9%Nixon25,415 | 0.1%Byrd35 | 43,186 | ||
| R | 38.9%Stevenson14,027 | 61.1%Eisenhower22,001 | 0.0% | 36,028 | ||
| R | 35.4%Stevenson11,191 | 64.1%Eisenhower20,250 | 0.5%Hallinan143 | 31,584 | ||
| R | 43.7%Truman9,424 | 53.1%Dewey11,455 | 3.3%Thurmond710 | 21,589 | ||
| R | 48.8%Roosevelt9,110 | 50.1%Dewey9,362 | 1.1%Thomas205 | 18,677 | ||
| D | 50.4%Roosevelt8,626 | 48.9%Willkie8,367 | 0.6%Thomas110 | 17,103 | ||
| D | 63.5%Roosevelt8,641 | 30.5%Landon4,148 | 6.0%Lemke823 | 13,612 | ||
| D | 59.0%Roosevelt6,824 | 36.3%Hoover4,201 | 4.7%Thomas548 | 11,573 | ||
| R | 35.9%Smith3,544 | 62.4%Hoover6,162 | 1.8%Thomas173 | 9,879 | ||
| R | 23.0%Davis2,103 | 46.0%Coolidge4,203 | 31.0%La Follette2,835 | 9,141 | ||
| R | 29.6%Cox2,262 | 64.7%Harding4,947 | 5.7%Debs432 | 7,641 | ||
| R | 38.6%Wilson3,363 | 56.2%Hughes4,888 | 5.2%Benson452 | 8,703 | ||
| O | 30.7%Wilson1,429 | 27.1%Taft1,261 | 42.3%Roosevelt1,969 | 4,659 | ||
| R | 30.8%Bryan1,153 | 62.0%Taft2,319 | 7.2%Debs271 | 3,743 | ||
| R | 15.7%Parker492 | 73.2%Roosevelt2,296 | 11.1%Debs349 | 3,137 | ||
| R | 37.8%Bryan1,114 | 56.1%McKinley1,655 | 6.1%Woolley179 | 2,948 | ||
| R | 42.2%Bryan1,566 | 56.1%McKinley2,082 | 1.6%Palmer60 | 3,708 | ||
| R | 9.8%Cleveland293 | 53.3%Harrison1,587 | 36.9%Weaver1,099 | 2,979 | ||
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presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1892 | −43.4% |
| 1896 | −13.9% |
| 1900 | −18.4% |
| 1904 | −57.5% |
| 1908 | −31.2% |
| 1912 | +3.6% |
| 1916 | −17.5% |
| 1920 | −35.1% |
| 1924 | −23.0% |
| 1928 | −26.5% |
| 1932 | +22.7% |
| 1936 | +33.0% |
| 1940 | +1.5% |
| 1944 | −1.3% |
| 1948 | −9.4% |
| 1952 | −28.7% |
| 1956 | −22.1% |
| 1960 | −17.8% |
| 1964 | +16.5% |
| 1968 | −18.7% |
| 1972 | −21.4% |
| 1976 | −19.3% |
| 1980 | −17.3% |
| 1984 | −25.9% |
| 1988 | −5.6% |
| 1992 | +6.2% |
| 1996 | +7.1% |
| 2000 | +2.5% |
| 2004 | +6.0% |
| 2008 | +22.1% |
| 2012 | +17.4% |
| 2016 | +26.0% |
| 2020 | +34.6% |
| 2024 | +33.7% |
DemocraticRepublican
Washington County has shifted from competitive terrain to a reliable Democratic stronghold over two decades, driven by rapid population growth in the Hillsboro–Beaverton tech corridor and an increasingly diverse, college-educated electorate.
Across the recorded series it reached a Democratic high of 34.6 points in 2020 and a Republican high of 57.5 points in 1904. Between 2020 and 2024 the county moved 0.9 points toward the Republican candidate; the 2024 margin was 33.7 points.
A population of 603,947, a 60% non-Hispanic-white share, and a median household income of $107,772 describe the county. The county's voting pattern over the last decade is most similar to that of Howard County and Santa Barbara County.
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All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Washington County, Oregon. Akashic. https://akashic.app/county/41067/. Accessed May 20, 2026. License: CC BY 4.0.
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Cities & towns in Washington County
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Frequently asked questions
How did Washington County, Oregon vote in 2024?
In 2024, Washington County, Oregon voted Democratic by 33.7 points (D+33.7), carried by the Democratic candidate. Out of 297,949 votes cast, 193,013 went Democratic and 92,590 went Republican.
When did Washington County, Oregon last vote Republican?
The most recent presidential election in which Washington County, Oregon voted Republican was 1988.
How many people live in Washington County, Oregon?
Washington County, Oregon has a population of 603,947 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Washington County, Oregon?
Median household income in Washington County, Oregon is $107,772 — above the national median of $80,734. The Oregon state median is $83,011.
What is the political history of Washington County, Oregon?
Akashic tracks 38 presidential elections in Washington County, Oregon from 1876 to 2024. Of those, 13 went Democratic and 20 went Republican.