Siskiyou, California — Presidential Election Results
Siskiyou, California has voted Republican in 7 of the last 7 presidential elections on record (2000–2024). In 2024, it was 40.7 pts more Rep. than California overall.
Jump to year: 2000 · 2004 · 2008 · 2012 · 2016 · 2020 · 2024
Full Election History, 2000–2024
| Year | Winner | Party | Votes | Vote Share | Margin | Total Votes Cast | Swing | Vs. California |
|---|---|---|---|---|---|---|---|---|
| 2000 | George W. Bush | Republican | 12,198 | 61.5% | 29.6 pts (5,875 votes) | 19,819 | — | 44.1 pts more Rep. |
| 2004 | George W. Bush | Republican | 12,673 | 60.7% | 23.0 pts (4,793 votes) | 20,863 | +8.4 pts | 33.4 pts more Rep. |
| 2008 | John McCain | Republican | 11,520 | 53.7% | 10.4 pts (2,228 votes) | 21,470 | +12.6 pts | 35.3 pts more Rep. |
| 2012 | Mitt Romney | Republican | 11,077 | 55.6% | 15.2 pts (3,031 votes) | 19,910 | -5.1 pts | 39.6 pts more Rep. |
| 2016 | Donald Trump | Republican | 11,341 | 55.3% | 20.0 pts (4,107 votes) | 20,492 | -6.3 pts | 54.4 pts more Rep. |
| 2020 | Donald J Trump | Republican | 13,290 | 56.6% | 15.8 pts (3,697 votes) | 23,472 | +6.0 pts | 46.0 pts more Rep. |
| 2024 | Donald J Trump | Republican | 12,461 | 58.0% | 19.2 pts (4,132 votes) | 21,489 | -3.7 pts | 40.7 pts more Rep. |
Population Context
Total Census Bureau population estimate for the county that year, and recorded votes as a share of that total population. This is a population-based figure, not a turnout rate against eligible or registered voters, which this site does not calculate.
| Year | County Population | Votes Cast (% of Population) |
|---|---|---|
| 2000 | 44,218 | 44.8% of population |
| 2004 | 44,394 | 47.0% of population |
| 2008 | 44,780 | 47.9% of population |
| 2012 | 44,079 | 45.2% of population |
| 2016 | 43,376 | 47.2% of population |
| 2020 | 43,999 | 53.3% of population |
| 2024 | 42,498 | 50.6% of population |
Trend
Between 2000 and 2024, the two-party presidential margin in Siskiyou shifted 11.8 points toward the Democratic candidate, based on recorded county returns. This reflects the vote totals in this dataset only; no claim is made here about the causes of that shift.
Margin Over Time
Democratic candidate's margin (percentage points, two-party vote share). Positive values favor the Democratic candidate; negative values favor the Republican candidate.
Bellwether Status
Siskiyou has matched the national popular winner in 4 of the last 7 presidential elections (57%), and California's own statewide winner in 0 of 7 (0%). Compare every county on the bellwether counties page.
Related Pages
Other California Counties
Frequently Asked Questions
How has Siskiyou voted in presidential elections since 2000?
Since 2000, Siskiyou has voted Democratic in 0 of 7 recorded presidential elections and Republican in 7 of 7, based on county-level returns through 2024.
What was the closest presidential election in Siskiyou?
Siskiyou's closest recorded margin was in 2008, when John McCain (Republican) won by 10.7 points (2,228 votes) out of 21,470 total votes cast.
Has Siskiyou ever flipped between parties?
Not in the 2000-2024 record on this page -- Siskiyou has voted for the same party in every recorded presidential election in that span.
What is the largest presidential election margin recorded in Siskiyou?
The widest margin on record for Siskiyou was in 2000, when George W. Bush (Republican) won by 31.7 points.
How many votes were cast in Siskiyou relative to its population?
In 2024, 21,489 votes were recorded in Siskiyou against a total population of 42,498 (50.6% of the total population). This is a population-based figure, not a turnout rate against eligible or registered voters, which this site does not calculate.
Is Siskiyou a presidential bellwether county?
Siskiyou has matched the national popular winner in 4 of the last 7 presidential elections (57%), and California's own statewide winner in 0 of 7 (0%).