San Juan County, Washington
AkashicSan Juan County, WAHarrisD+51.1
2024 precinct map of San Juan CountyPrecinct-level 2024 presidential results for San Juan 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 | 73.3% | 9,539 |
|---|---|---|
| Donald TrumpRepublican | 22.2% | 2,890 |
| Robert F KennedyWe The People | 1.5% | 196 |
Harris +50Trump +50
23 precincts · 13,006 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 | 73.3%Harris9,539 | 22.2%Trump2,890 | 1.5%Kennedy196 | 13,006 | ||
| D | 73.7%Biden9,725 | 23.2%Trump3,057 | 1.6%Jorgensen210 | 13,197 | ||
| D | 64.4%Clinton7,172 | 24.1%Trump2,688 | 4.2%Stein467 | 11,134 | ||
| D | 66.6%Obama7,125 | 29.1%Romney3,111 | 1.6%Honkala175 | 10,692 | ||
| D | 70.0%Obama7,374 | 28.1%McCain2,958 | 1.9%Nader199 | 10,531 | ||
| D | 65.2%Kerry6,589 | 32.6%Bush3,290 | 2.2%Nader225 | 10,104 | ||
| D | 52.5%Gore4,426 | 35.7%Bush3,005 | 10.4%Nader875 | 8,424 | ||
| D | 49.8%Clinton3,663 | 34.3%Dole2,523 | 6.9%Perot508 | 7,354 | ||
| D | 47.1%Clinton3,353 | 26.7%Bush1,901 | 25.0%Perot1,776 | 7,117 | ||
| D | 51.7%Dukakis3,008 | 45.8%Bush2,660 | 2.5%Paul146 | 5,814 | ||
| R | 45.5%Mondale2,514 | 52.5%Reagan2,900 | 2.0%Bergland112 | 5,526 | ||
| R | 33.1%Carter1,666 | 47.0%Reagan2,363 | 19.9%Anderson1,002 | 5,031 | ||
| R | 39.4%Carter1,467 | 53.7%Ford1,998 | 6.9%McCarthy257 | 3,722 | ||
| R | 32.4%McGovern906 | 63.9%Nixon1,786 | 3.7%Schmitz103 | 2,795 | ||
| R | 34.9%Humphrey685 | 59.3%Nixon1,164 | 5.8%Wallace114 | 1,963 | ||
| D | 51.8%Johnson906 | 47.9%Goldwater839 | 0.3%Hass5 | 1,750 | ||
| R | 35.9%Kennedy624 | 63.9%Nixon1,112 | 0.2%Byrd4 | 1,740 | ||
| R | 34.5%Stevenson584 | 65.3%Eisenhower1,105 | 0.2%Andrews4 | 1,693 | ||
| R | 35.1%Stevenson619 | 64.2%Eisenhower1,133 | 0.8%Hallinan14 | 1,766 | ||
| R | 40.4%Truman636 | 55.9%Dewey881 | 3.7%Thurmond58 | 1,575 | ||
| R | 47.6%Roosevelt644 | 51.9%Dewey703 | 0.5%Thomas7 | 1,354 | ||
| D | 51.3%Roosevelt860 | 48.2%Willkie808 | 0.4%Thomas7 | 1,675 | ||
| D | 48.6%Roosevelt775 | 43.3%Landon690 | 8.2%Lemke130 | 1,595 | ||
| D | 52.4%Roosevelt786 | 40.4%Hoover607 | 7.2%Thomas108 | 1,501 | ||
| R | 32.8%Smith400 | 66.7%Hoover814 | 0.5%Thomas6 | 1,220 | ||
| R | 7.7%Davis86 | 66.7%Coolidge744 | 25.6%La Follette286 | 1,116 | ||
| R | 15.7%Cox196 | 66.6%Harding833 | 17.7%Debs221 | 1,250 | ||
| D | 48.0%Wilson669 | 42.4%Hughes591 | 9.7%Benson135 | 1,395 | ||
| O | 25.1%Wilson311 | 27.5%Taft341 | 47.4%Roosevelt587 | 1,239 | ||
| R | 20.2%Bryan178 | 65.9%Taft581 | 13.8%Debs122 | 881 | ||
| R | 14.7%Parker113 | 71.9%Roosevelt554 | 13.4%Debs103 | 770 | ||
| R | 35.2%Bryan245 | 61.5%McKinley428 | 3.3%Woolley23 | 696 | ||
| R | 41.3%Bryan291 | 58.3%McKinley411 | 0.4%Palmer3 | 705 | ||
| R | 35.6%Cleveland226 | 54.9%Harrison348 | 9.5%Weaver60 | 634 | ||
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presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1892 | −19.2% |
| 1896 | −17.0% |
| 1900 | −26.3% |
| 1904 | −57.3% |
| 1908 | −45.7% |
| 1912 | −2.4% |
| 1916 | +5.6% |
| 1920 | −51.0% |
| 1924 | −59.0% |
| 1928 | −33.9% |
| 1932 | +11.9% |
| 1936 | +5.3% |
| 1940 | +3.1% |
| 1944 | −4.4% |
| 1948 | −15.6% |
| 1952 | −29.1% |
| 1956 | −30.8% |
| 1960 | −28.0% |
| 1964 | +3.8% |
| 1968 | −24.4% |
| 1972 | −31.5% |
| 1976 | −14.3% |
| 1980 | −13.9% |
| 1984 | −7.0% |
| 1988 | +6.0% |
| 1992 | +20.4% |
| 1996 | +15.5% |
| 2000 | +16.9% |
| 2004 | +32.7% |
| 2008 | +41.9% |
| 2012 | +37.5% |
| 2016 | +40.3% |
| 2020 | +50.5% |
| 2024 | +51.1% |
DemocraticRepublican
voter registration
Registered voters
Total registered voters, over time
Registered voters
| Year | Total registered |
|---|---|
| 2016 | 13,573 |
| 2018 | 14,094 |
| 2020 | 15,387 |
| 2022 | 15,713 |
| 2024 | 16,197 |
Source: U.S. Election Assistance Commission (EAVS)
San Juan County, reachable only by ferry or small plane, combines a tiny year-round population with a heavily educated, affluent resident base that has produced some of the most lopsided presidential margins in the Pacific Northwest.
Across the recorded series it reached a Democratic high of 51.1 points in 2024 and a Republican high of 59.0 points in 1924. Between 2020 and 2024 the county moved 0.6 points toward the Democratic candidate; the 2024 margin was 51.1 points.
A population of 18,478, a 85% non-Hispanic-white share, and a median household income of $84,800 describe the county. The county's voting pattern over the last decade is most similar to that of Boulder County and Charlottesville city.
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All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
San Juan County, Washington. Akashic. https://akashic.app/county/53055/. Accessed May 20, 2026. License: CC BY 4.0.
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Frequently asked questions
How did San Juan County, Washington vote in 2024?
In 2024, San Juan County, Washington voted Democratic by 51.1 points (D+51.1), carried by the Democratic candidate. Out of 13,006 votes cast, 9,539 went Democratic and 2,890 went Republican.
When did San Juan County, Washington last vote Republican?
The most recent presidential election in which San Juan County, Washington voted Republican was 1984.
How many people live in San Juan County, Washington?
San Juan County, Washington has a population of 18,478 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in San Juan County, Washington?
Median household income in San Juan County, Washington is $84,800 — above the national median of $80,734. The Washington state median is $98,141.
What is the political history of San Juan County, Washington?
Akashic tracks 38 presidential elections in San Juan County, Washington from 1876 to 2024. Of those, 15 went Democratic and 18 went Republican.