San Diego County, California
AkashicSan Diego County, CAHarrisD+16.8
2024 precinct map of San Diego CountyPrecinct-level 2024 presidential results for San Diego 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 | 56.9% | 841,372 |
|---|---|---|
| Donald TrumpRepublican | 40.1% | 593,270 |
| Robert F Kennedy Jr.American Independent | 1.1% | 16,379 |
Harris +50Trump +50
1,746 precincts · 1,477,786 votes. Hover any precinct for its result.
The precinct map shows the 2024 presidential vote; the timeline scrubs the county’s overall result across 1876–2024.
38 presidential elections
| Year | Won | Democratic | Republican | Other | Margin | Total |
|---|---|---|---|---|---|---|
| D | 56.9%Harris841,372 | 40.1%Trump593,270 | 1.1%Kennedy16,379 | 1,477,786 | ||
| D | 60.2%Biden964,650 | 37.5%Trump600,094 | 1.3%Jorgensen21,383 | 1,602,143 | ||
| D | 56.1%Clinton735,476 | 36.4%Trump477,766 | 3.9%Johnson51,606 | 1,311,618 | ||
| D | 52.5%Obama626,957 | 45.0%Romney536,726 | 1.2%Johnson14,656 | 1,193,949 | ||
| D | 54.0%Obama666,581 | 43.8%McCain541,032 | 2.3%Nader27,890 | 1,235,503 | ||
| R | 46.3%Kerry526,437 | 52.5%Bush596,033 | 1.2%Badnarik13,881 | 1,136,351 | ||
| R | 45.7%Gore437,666 | 49.6%Bush475,736 | 3.5%Nader33,979 | 958,634 | ||
| R | 44.1%Clinton389,964 | 45.6%Dole402,876 | 7.1%Perot63,037 | 884,151 | ||
| D | 37.2%Clinton367,397 | 35.7%Bush352,125 | 26.3%Perot259,249 | 986,646 | ||
| R | 38.3%Dukakis333,264 | 60.2%Bush523,143 | 1.5%Paul12,788 | 869,195 | ||
| R | 33.4%Mondale257,029 | 65.3%Reagan502,344 | 1.3%Bergland9,894 | 769,267 | ||
| R | 27.3%Carter195,410 | 60.8%Reagan435,910 | 11.9%Anderson85,546 | 716,866 | ||
| R | 41.6%Carter263,654 | 55.7%Ford353,302 | 2.7%Macbride16,839 | 633,795 | ||
| R | 34.3%McGovern206,455 | 61.8%Nixon371,627 | 3.8%Schmitz23,055 | 601,137 | ||
| R | 36.1%Humphrey167,669 | 56.3%Nixon261,540 | 7.7%Wallace35,654 | 464,863 | ||
| R | 49.7%Johnson211,808 | 50.3%Goldwater214,445 | 0.0%Hass33 | 426,286 | ||
| R | 43.3%Kennedy171,259 | 56.4%Nixon223,056 | 0.3%Byrd1,106 | 395,421 | ||
| R | 35.1%Stevenson106,716 | 64.5%Eisenhower195,742 | 0.4%Andrews1,147 | 303,605 | ||
| R | 36.5%Stevenson101,880 | 62.9%Eisenhower175,281 | 0.6%Hallinan1,590 | 278,751 | ||
| R | 47.8%Truman98,217 | 49.4%Dewey101,552 | 2.8%Thurmond5,690 | 205,459 | ||
| D | 53.9%Roosevelt89,959 | 45.4%Dewey75,746 | 0.6%Thomas1,059 | 166,764 | ||
| D | 55.6%Roosevelt71,188 | 43.3%Willkie55,434 | 1.2%Thomas1,488 | 128,110 | ||
| D | 63.5%Roosevelt64,628 | 35.0%Landon35,686 | 1.5%Lemke1,540 | 101,854 | ||
| D | 53.6%Roosevelt45,622 | 41.5%Hoover35,305 | 5.0%Thomas4,223 | 85,150 | ||
| R | 32.0%Smith22,749 | 67.1%Hoover47,769 | 0.9%Thomas633 | 71,151 | ||
| R | 6.3%Davis2,944 | 49.0%Coolidge22,726 | 44.7%La Follette20,721 | 46,391 | ||
| R | 27.3%Cox8,478 | 63.8%Harding19,826 | 9.0%Debs2,783 | 31,087 | ||
| R | 46.0%Wilson16,815 | 46.5%Hughes16,978 | 7.5%Benson2,744 | 36,537 | ||
| O | 44.8%Wilson9,731 | 0.0%Taft0 | 55.2%Roosevelt11,997 | 21,728 | ||
| R | 25.4%Bryan2,393 | 57.6%Taft5,412 | 17.0%Debs1,598 | 9,403 | ||
| R | 19.3%Parker1,398 | 59.5%Roosevelt4,303 | 21.1%Debs1,529 | 7,230 | ||
| R | 38.7%Bryan2,678 | 54.9%McKinley3,800 | 6.4%Woolley443 | 6,921 | ||
| D | 50.4%Bryan3,908 | 46.9%McKinley3,631 | 2.7%Palmer209 | 7,748 | ||
| R | 30.3%Cleveland2,334 | 45.7%Harrison3,525 | 24.0%Weaver1,853 | 7,712 | ||
| R | 38.9%Cleveland3,189 | 56.9%Harrison4,661 | 4.2%Fisk344 | 8,194 | ||
| R | 40.7%Cleveland800 | 57.0%Blaine1,120 | 2.3%Butler45 | 1,965 | ||
| R | 41.7%Hancock546 | 56.8%Garfield743 | 1.5%Weaver19 | 1,308 | ||
| R | 45.7%Tilden668 | 54.3%Hayes794 | 0.0% | 1,462 |
presidential history
Presidential margin, 1876–2024
Democratic minus Republican, by election
| Year | Margin (D minus R) |
|---|---|
| 1876 | −8.6% |
| 1880 | −15.1% |
| 1884 | −16.3% |
| 1888 | −18.0% |
| 1892 | −15.4% |
| 1896 | +3.6% |
| 1900 | −16.2% |
| 1904 | −40.2% |
| 1908 | −32.1% |
| 1912 | +44.8% |
| 1916 | −0.4% |
| 1920 | −36.5% |
| 1924 | −42.6% |
| 1928 | −35.2% |
| 1932 | +12.1% |
| 1936 | +28.4% |
| 1940 | +12.3% |
| 1944 | +8.5% |
| 1948 | −1.6% |
| 1952 | −26.3% |
| 1956 | −29.3% |
| 1960 | −13.1% |
| 1964 | −0.6% |
| 1968 | −20.2% |
| 1972 | −27.5% |
| 1976 | −14.1% |
| 1980 | −33.5% |
| 1984 | −31.9% |
| 1988 | −21.8% |
| 1992 | +1.5% |
| 1996 | −1.5% |
| 2000 | −4.0% |
| 2004 | −6.1% |
| 2008 | +10.2% |
| 2012 | +7.6% |
| 2016 | +19.6% |
| 2020 | +22.8% |
| 2024 | +16.8% |
DemocraticRepublican
voter registration
Registered voters
By party of registration, over time
DemocraticRepublicanUnaffiliatedOther parties
| Year | Total registered | Democratic | Republican | Unaffiliated | Other |
|---|---|---|---|---|---|
| 2022 | 1,909,948 | 792,164 | 516,517 | 467,881 | 133,386 |
| 2024 | 1,938,487 | 797,970 | 536,500 | 457,212 | 146,805 |
Source: California Secretary of State
San Diego County's political center of gravity has shifted steadily leftward over two decades, driven by a growing Latino population and college-educated suburban voters in communities like Chula Vista and Carlsbad. The 2024 margin of D+16.8 marks its widest Democratic spread yet.
Across the recorded series it reached a Democratic high of 44.8 points in 1912 and a Republican high of 42.6 points in 1924. Between 2020 and 2024 the county moved 6.0 points toward the Republican candidate; the 2024 margin was 16.8 points.
A population of 3,288,774, a 42% non-Hispanic-white share, and a median household income of $106,268 describe the county. The county's voting pattern over the last decade is most similar to that of Ventura County and Arapahoe County.
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Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
San Diego County, California. Akashic. https://akashic.app/county/06073/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
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Frequently asked questions
How did San Diego County, California vote in 2024?
In 2024, San Diego County, California voted Democratic by 16.8 points (D+16.8), carried by the Democratic candidate. Out of 1,477,786 votes cast, 841,372 went Democratic and 593,270 went Republican.
When did San Diego County, California last vote Republican?
The most recent presidential election in which San Diego County, California voted Republican was 2004.
How many people live in San Diego County, California?
San Diego County, California has a population of 3,288,774 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in San Diego County, California?
Median household income in San Diego County, California is $106,268 — above the national median of $80,734. The California state median is $99,122.
What is the political history of San Diego County, California?
Akashic tracks 38 presidential elections in San Diego County, California from 1876 to 2024. Of those, 11 went Democratic and 26 went Republican.