Presidential elections · 2000–2024
Siskiyou County, CA — Presidential Election Results (2000–2024)
In 2024, Siskiyou County, California voted for Donald J. Trump (Republican) by R+19.2 — 8,329 Democratic to 12,461 Republican of 21,489 votes cast. From 2020 to 2024 it shifted 3.4 points toward Republicans. That makes it 39.3 points more Republican than California overall (D+20.1).
Data: MIT Election Data & Science Lab, Harvard Dataverse.
Margin by election, 2000–2024
Democratic minus Republican, in points of all votes cast — blue bars Democratic, red Republican.
Every election in Siskiyou County
| Year | Democratic | Republican | Other | Dem share | Rep share | Margin |
|---|---|---|---|---|---|---|
| 2024 | 8,329 | 12,461 | 699 | 38.8% | 58.0% | R+19.2 |
| 2020 | 9,593 | 13,290 | 589 | 40.9% | 56.6% | R+15.8 |
| 2016 | 7,234 | 11,341 | 1,917 | 35.3% | 55.3% | R+20.0 |
| 2012 | 8,046 | 11,077 | 787 | 40.4% | 55.6% | R+15.2 |
| 2008 | 9,292 | 11,520 | 658 | 43.3% | 53.7% | R+10.4 |
| 2004 | 7,880 | 12,673 | 310 | 37.8% | 60.7% | R+23.0 |
| 2000 | 6,323 | 12,198 | 1,298 | 31.9% | 61.5% | R+29.6 |
Siskiyou County presidential elections — FAQ
Who carried Siskiyou County in the 2024 presidential election?+
Donald J. Trump (Republican) carried Siskiyou County, California in 2024 by R+19.2, with 21,489 votes cast. Data: MIT Election Data & Science Lab.
How did Siskiyou County shift between 2020 and 2024?+
Siskiyou County shifted 3.4 points toward Republicans between 2020 (R+15.8) and 2024 (R+19.2).
Is Siskiyou County more Democratic or Republican than California overall?+
In 2024, Siskiyou County went R+19.2 while California overall went D+20.1 — 39.3 points more Republican than the state.
Where does this election data come from?+
County-level presidential returns (2000–2024) come from the MIT Election Data and Science Lab (MEDSL), published on the Harvard Dataverse. pumsdata is an independent product that makes the data easy to map and compare, and is not affiliated with MEDSL or Harvard.