Sonoma, California — Presidential Election Results
Sonoma, California has voted Democratic in 7 of the last 7 presidential elections on record (2000–2024). In 2024, it was 27.0 pts more Dem. 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 | Al Gore | Democratic | 117,295 | 59.5% | 27.3 pts (53,766 votes) | 197,006 | — | 17.3 pts more Dem. |
| 2004 | John Kerry | Democratic | 148,261 | 67.4% | 36.4 pts (80,057 votes) | 220,077 | +7.2 pts | 26.9 pts more Dem. |
| 2008 | Barack Obama | Democratic | 168,888 | 73.6% | 49.6 pts (113,761 votes) | 229,351 | +13.8 pts | 26.2 pts more Dem. |
| 2012 | Barack Obama | Democratic | 153,942 | 71.1% | 45.8 pts (99,158 votes) | 216,508 | -3.3 pts | 23.8 pts more Dem. |
| 2016 | Hillary Clinton | Democratic | 160,435 | 69.4% | 47.1 pts (109,027 votes) | 231,253 | +4.0 pts | 19.2 pts more Dem. |
| 2020 | Joseph R Biden Jr | Democratic | 199,938 | 74.5% | 51.5 pts (138,113 votes) | 268,317 | +1.3 pts | 22.9 pts more Dem. |
| 2024 | Kamala D Harris | Democratic | 179,600 | 71.4% | 46.2 pts (116,174 votes) | 251,426 | -5.0 pts | 27.0 pts more Dem. |
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 | 460,421 | 42.8% of population |
| 2004 | 466,809 | 47.1% of population |
| 2008 | 473,091 | 48.5% of population |
| 2012 | 489,993 | 44.2% of population |
| 2016 | 502,547 | 46.0% of population |
| 2020 | 488,501 | 54.9% of population |
| 2024 | 485,375 | 51.8% of population |
Trend
Between 2000 and 2024, the two-party presidential margin in Sonoma shifted 18.1 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
Sonoma has matched the national popular winner in 3 of the last 7 presidential elections (43%), and California's own statewide winner in 7 of 7 (100%). Compare every county on the bellwether counties page.
Related Pages
Other California Counties
Frequently Asked Questions
How has Sonoma voted in presidential elections since 2000?
Since 2000, Sonoma has voted Democratic in 7 of 7 recorded presidential elections and Republican in 0 of 7, based on county-level returns through 2024.
What was the closest presidential election in Sonoma?
Sonoma's closest recorded margin was in 2000, when Al Gore (Democratic) won by 29.7 points (53,766 votes) out of 197,006 total votes cast.
Has Sonoma ever flipped between parties?
Not in the 2000-2024 record on this page -- Sonoma has voted for the same party in every recorded presidential election in that span.
What is the largest presidential election margin recorded in Sonoma?
The widest margin on record for Sonoma was in 2020, when Joseph R Biden Jr (Democratic) won by 52.8 points.
How many votes were cast in Sonoma relative to its population?
In 2024, 251,426 votes were recorded in Sonoma against a total population of 485,375 (51.8% 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 Sonoma a presidential bellwether county?
Sonoma has matched the national popular winner in 3 of the last 7 presidential elections (43%), and California's own statewide winner in 7 of 7 (100%).