San Diego County, CA
CA · Presidential Elections 1876–2024
San Diego County, CA (California) voted D+16.8 for Kamala Harris (Democrat) in the 2024 presidential election, with Harris receiving 841,372 votes (56.93%) to 593,270 (40.14%) for Trump.
This represents a R+6.0% swing toward Republicans compared to 2020. San Diego County is classified as a solid Democratic county. San Diego County has voted Democratic in every presidential election since 2008. The county has a population of approximately 3,288,774.
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Quick Stats
Demographics
Community Profile
Religious Composition
Source: Religion Census 2020Ancestry Groups
Source: Census ACSTop reported ancestry groups (compared to national average).
Age Distribution
Employment by Industry
Census ACSPresidential Elections
Presidential Results
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2024 | 56.9%(841,372) | 40.1%(593,270) | D+16.8 | R+6.0 |
| 2020 | 60.2%(964,650) | 37.5%(600,094) | D+22.8 | D+3.1 |
| 2016 | 56.1%(735,476) | 36.4%(477,766) | D+19.6 | D+12.1 |
| 2012 | 52.5%(626,957) | 45.0%(536,726) | D+7.6 | R+2.6 |
| 2008 | 54.0%(666,581) | 43.8%(541,032) | D+10.2 | D+16.3 |
| 2004 | 46.3%(526,437) | 52.5%(596,033) | R+6.1 | R+2.2 |
| 2000 | 45.7%(437,666) | 49.6%(475,736) | R+4.0 | R+2.5 |
| 1996 | 44.1%(389,964) | 45.6%(402,876) | R+1.5 | R+3.0 |
| 1992 | 37.2%(367,397) | 35.7%(352,125) | D+1.5 | D+23.4 |
| 1988 | 38.3%(333,264) | 60.2%(523,143) | R+21.8 | D+10.0 |
Source: Official state election returns via MIT Election Data + Science Lab
Presidential Margin Trend
San Diego County, CA • 1876–2024
Senate Elections
Senate Results
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2024 | 56.7%(817,805) | 43.3%(625,129) | D+13.4 | R+86.6 |
| 2018 | 100.0%(995,192) | 0.0%(0) | D+100.0 | D+4.6 |
| 2016 | 95.4%(1,022,775) | 0.0%(0) | D+95.4 | D+86.6 |
| 2012 | 54.4%(622,781) | 45.6%(521,884) | D+8.8 | R+1.8 |
| 2006 | 53.0%(403,711) | 42.4%(322,760) | D+10.6 | D+0.0 |
| 2000 | 51.3%(466,461) | 40.8%(370,287) | D+10.6 | D+25.9 |
| 1994 | 37.8%(279,249) | 53.2%(392,529) | R+15.3 | R+18.7 |
| 1992 | 47.0%(442,855) | 43.6%(411,362) | D+3.3 | D+34.3 |
| 1988 | 33.1%(283,554) | 64.1%(549,367) | R+31.0 | R+13.8 |
| 1982 | 39.1%(242,135) | 56.4%(348,758) | R+17.2 | D+0.5 |
Source: Official state election returns via MIT Election Data + Science Lab
Governor Elections
Governor Results
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2022 | 55.8%(573,765) | 44.2%(454,533) | D+11.6 | R+2.1 |
| 2018 | 56.9%(658,346) | 43.1%(499,532) | D+13.7 | D+11.6 |
| 2014 | 51.1%(346,419) | 48.9%(331,942) | D+2.1 | D+7.9 |
| 2010 | 44.0%(399,845) | 49.8%(452,205) | R+5.8 | D+29.5 |
| 2006 | 30.2%(234,938) | 65.5%(509,059) | R+35.3 | R+24.1 |
| 2002 | 40.6%(268,278) | 51.7%(342,095) | R+11.2 | R+14.3 |
| 1998 | 49.5%(364,169) | 46.3%(340,834) | D+3.2 | D+34.5 |
| 1994 | 32.0%(240,937) | 63.3%(477,439) | R+31.4 | R+10.7 |
| 1990 | 36.4%(244,759) | 57.1%(383,959) | R+20.7 | D+12.9 |
| 1986 | 31.5%(184,395) | 65.2%(381,094) | R+33.6 | R+25.5 |
Source: Official state election returns via MIT Election Data + Science Lab