Santa Clara County, CA
CA · Presidential Elections 1876–2024
Santa Clara County, CA (California) voted D+39.9 for Kamala Harris (Democrat) in the 2024 presidential election, with Harris receiving 510,744 votes (68.04%) to 210,924 (28.1%) for Trump.
This represents a R+7.5% swing toward Republicans compared to 2020. Santa Clara County is classified as a deep Democratic county. Santa Clara County has voted Democratic in every presidential election since 1988. The county has a population of approximately 1,902,047.
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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 | 68.0%(510,744) | 28.1%(210,924) | D+39.9 | R+7.5 |
| 2020 | 72.6%(617,967) | 25.2%(214,612) | D+47.4 | R+4.7 |
| 2016 | 72.7%(511,684) | 20.6%(144,826) | D+52.1 | D+9.3 |
| 2012 | 70.0%(450,818) | 27.1%(174,843) | D+42.8 | D+1.9 |
| 2008 | 69.5%(462,241) | 28.6%(190,039) | D+40.9 | D+11.6 |
| 2004 | 63.9%(386,100) | 34.6%(209,094) | D+29.3 | D+3.1 |
| 2000 | 60.7%(332,490) | 34.4%(188,750) | D+26.2 | D+1.5 |
| 1996 | 56.9%(297,639) | 32.2%(168,291) | D+24.7 | D+3.9 |
| 1992 | 49.2%(296,265) | 28.4%(170,870) | D+20.8 | D+16.5 |
| 1988 | 51.3%(277,810) | 47.0%(254,442) | D+4.3 | D+15.5 |
Source: Official state election returns via MIT Election Data + Science Lab
Presidential Margin Trend
Santa Clara County, CA • 1876–2024
Senate Elections
Senate Results
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2024 | 69.0%(498,785) | 31.0%(224,597) | D+37.9 | R+62.1 |
| 2018 | 100.0%(568,508) | 0.0%(0) | D+100.0 | R+6.8 |
| 2016 | 106.8%(661,470) | 0.0%(0) | D+106.8 | D+61.0 |
| 2012 | 72.9%(454,647) | 27.1%(168,722) | D+45.9 | D+0.9 |
| 2006 | 69.8%(298,451) | 24.9%(106,383) | D+44.9 | D+20.3 |
| 2000 | 59.6%(320,400) | 35.0%(187,953) | D+24.6 | D+4.8 |
| 1994 | 55.8%(245,232) | 35.9%(157,922) | D+19.9 | R+11.3 |
| 1992 | 62.2%(364,997) | 31.0%(181,858) | D+31.2 | D+30.5 |
| 1988 | 48.4%(257,463) | 47.7%(253,865) | D+0.7 | D+4.2 |
| 1982 | 46.1%(187,805) | 49.6%(201,969) | R+3.5 | D+3.3 |
Source: Official state election returns via MIT Election Data + Science Lab
Governor Elections
Governor Results
| Year | Democrat | Republican | Margin | Swing |
|---|---|---|---|---|
| 2022 | 70.0%(379,377) | 30.0%(162,518) | D+40.0 | R+2.8 |
| 2018 | 71.4%(438,758) | 28.6%(175,791) | D+42.8 | R+3.1 |
| 2014 | 72.9%(288,732) | 27.1%(107,113) | D+45.9 | D+19.5 |
| 2010 | 61.3%(314,022) | 34.9%(178,695) | D+26.4 | D+35.7 |
| 2006 | 42.9%(185,037) | 52.2%(225,132) | R+9.3 | R+32.2 |
| 2002 | 55.3%(199,399) | 32.4%(116,862) | D+22.9 | R+9.7 |
| 1998 | 64.3%(270,105) | 31.7%(133,015) | D+32.6 | D+32.7 |
| 1994 | 47.5%(211,904) | 47.5%(212,075) | R+0.0 | R+9.7 |
| 1990 | 52.2%(218,843) | 42.6%(178,310) | D+9.7 | D+31.9 |
| 1986 | 37.6%(142,907) | 59.9%(227,285) | R+22.2 | R+31.1 |
Source: Official state election returns via MIT Election Data + Science Lab