Santa Clara County, California
| Kamala Harris ✓Democratic | 68.1% | 510,744 |
|---|---|---|
| Donald TrumpRepublican | 28.1% | 210,924 |
| Jill SteinGreen | 1.6% | 12,155 |
| Year | Margin (D minus R) |
|---|---|
| 1876 | −4.2% |
| 1880 | −4.8% |
| 1884 | −9.2% |
| 1888 | −5.4% |
| 1892 | −4.4% |
| 1896 | −9.5% |
| 1900 | −20.5% |
| 1904 | −41.3% |
| 1908 | −30.5% |
| 1912 | +39.6% |
| 1916 | −7.4% |
| 1920 | −45.5% |
| 1924 | −50.6% |
| 1928 | −28.4% |
| 1932 | +1.6% |
| 1936 | +18.1% |
| 1940 | +0.4% |
| 1944 | +5.3% |
| 1948 | −11.1% |
| 1952 | −19.1% |
| 1956 | −18.5% |
| 1960 | −5.6% |
| 1964 | +26.5% |
| 1968 | +2.8% |
| 1972 | −6.3% |
| 1976 | −2.5% |
| 1980 | −13.0% |
| 1984 | −11.2% |
| 1988 | +4.3% |
| 1992 | +20.8% |
| 1996 | +24.7% |
| 2000 | +26.2% |
| 2004 | +29.3% |
| 2008 | +40.9% |
| 2012 | +42.8% |
| 2016 | +52.1% |
| 2020 | +47.4% |
| 2024 | +40.0% |
| Year | Total registered | Democratic | Republican | Unaffiliated | Other |
|---|---|---|---|---|---|
| 2022 | 1,005,533 | 514,199 | 165,427 | 279,858 | 46,049 |
| 2024 | 1,037,777 | 528,792 | 177,545 | 280,432 | 51,008 |
Home to the global tech industry's core, Santa Clara County delivers some of California's widest presidential margins, with a highly educated, diverse workforce that has shifted the electorate decisively leftward over the past two decades.
Across the recorded series it reached a Democratic high of 52.1 points in 2016 and a Republican high of 50.6 points in 1924. Between 2020 and 2024 the county moved 7.5 points toward the Republican candidate; the 2024 margin was 40.0 points.
A population of 1,902,047, a 27% non-Hispanic-white share, and a median household income of $164,281 describe the county. The county's voting pattern over the last decade is most similar to that of Contra Costa County and San Mateo County.
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Santa Clara County, California. Akashic. https://akashic.app/county/06085/. Accessed May 20, 2026. License: CC BY 4.0.