Siskiyou County, California
| Donald Trump ✓Republican | 58.0% | 12,461 |
|---|---|---|
| Kamala HarrisDemocratic | 38.8% | 8,329 |
| Robert F Kennedy Jr.American Independent | 1.8% | 397 |
| Year | Margin (D minus R) |
|---|---|
| 1876 | +9.1% |
| 1880 | +5.8% |
| 1884 | +7.7% |
| 1888 | +3.4% |
| 1892 | +3.5% |
| 1896 | +7.7% |
| 1900 | −6.3% |
| 1904 | −25.1% |
| 1908 | −4.1% |
| 1912 | +49.6% |
| 1916 | +23.0% |
| 1920 | −29.0% |
| 1924 | −30.9% |
| 1928 | −12.4% |
| 1932 | +42.6% |
| 1936 | +39.8% |
| 1940 | +27.2% |
| 1944 | +15.1% |
| 1948 | +11.5% |
| 1952 | −12.6% |
| 1956 | −0.0% |
| 1960 | +13.4% |
| 1964 | +27.5% |
| 1968 | −0.5% |
| 1972 | −7.7% |
| 1976 | −0.1% |
| 1980 | −21.9% |
| 1984 | −18.9% |
| 1988 | −3.9% |
| 1992 | +7.7% |
| 1996 | −8.9% |
| 2000 | −29.6% |
| 2004 | −22.9% |
| 2008 | −10.3% |
| 2012 | −15.2% |
| 2016 | −20.0% |
| 2020 | −15.8% |
| 2024 | −19.2% |
| Year | Total registered | Democratic | Republican | Unaffiliated | Other |
|---|---|---|---|---|---|
| 2022 | 29,020 | 8,464 | 11,911 | 5,904 | 2,741 |
| 2024 | 27,963 | 7,900 | 12,047 | 5,278 | 2,738 |
Siskiyou spans more than 6,000 square miles of mountains and high desert along the Oregon border, with a small, rural population that has backed Republican presidential candidates by double digits in each of the last several cycles.
Across the recorded series it reached a Democratic high of 49.6 points in 1912 and a Republican high of 30.9 points in 1924. Between 2020 and 2024 the county moved 3.5 points toward the Republican candidate; the 2024 margin was 19.2 points.
A population of 43,466, a 73% non-Hispanic-white share, and a median household income of $59,095 describe the county. The county's voting pattern over the last decade is most similar to that of Okanogan County and Plumas County.
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Siskiyou County, California. Akashic. https://akashic.app/county/06093/. Accessed May 20, 2026. License: CC BY 4.0.