| Kamala Harris ✓Democratic | 73.2% | 25,012 |
|---|---|---|
| Donald TrumpRepublican | 23.5% | 8,011 |
| OtherAll other candidates | 3.3% | 1,136 |
| Year | Margin (D minus R) |
|---|---|
| 2008 | +51.1% |
| 2012 | +48.9% |
| 2016 | +50.8% |
| 2020 | +53.4% |
| 2024 | +49.8% |
| Year | Won | Democratic | Republican | Other | Margin | Total |
|---|---|---|---|---|---|---|
| D | 73.2%Harris25,012 | 23.5%Trump8,011 | 3.3% | 34,159 | ||
| D | 75.5%Biden26,907 | 22.1%Trump7,890 | 2.3%incl. Jorgensen | 35,634 | ||
| D | 71.9%Clinton21,468 | 21.1%Trump6,297 | 7.0%incl. Johnson | 29,856 | ||
| D | 74.5%Obama19,973 | 25.5%Romney6,847 | 0.0% | 26,820 | ||
| D | 75.4%Obama21,182 | 24.3%McCain6,823 | 0.3% | 28,077 |
Demographics
Demographic Profile
Key indicators compared across containing geographies
| Indicator | PetalumaCity | CaliforniaState | United StatesNation |
|---|---|---|---|
| Race & Ethnicity | |||
| White | 70.1% | 39.7% | 61.0% |
| Black | 1.2% | 5.4% | 12.2% |
| Asian | 3.8% | 15.5% | 6.0% |
| Two or more races | 15.6% | 19.2% | 12.6% |
| Other race | 9.1% | 20.1% | 8.2% |
| Hispanic or Latino | 21.7% | 40.1% | 19.3% |
| Income & Age | |||
| Median household income | $115,430 | $99,122 | $84,427 |
| Poverty rate | 6.5% | 12.0% | 12.5% |
| Median age | 45.3 | 37.9 | 39.1 |
| Age 18–24 | 7.9% | 9.1% | 9.2% |
| Age 65 and older | 21.6% | 15.6% | 17.2% |
| Education & Language | |||
| Bachelor's degree or higher (25+) | 38.5% | 36.6% | 35.6% |
| Speaks a non-English language at home | 27.0% | 44.4% | 22.3% |
| Spanish | 21.0% | 28.4% | 13.6% |
| Other Indo-European | 1.4% | 3.4% | 2.0% |
| Ancestry | |||
| Largest ancestry | German 12.4% | German 6.8% | German 12.5% |
| 2nd-largest ancestry | Irish 12.2% | English 6.3% | English 9.5% |
| 3rd-largest ancestry | English 12.1% | Irish 5.9% | Irish 9.4% |
| Religion | |||
| Catholic | 23.5%County context | 26.2% | 18.6% |
| Evangelical Protestant | 5.3%County context | 9.0% | 16.5% |
| Unaffiliated or unclaimed | 63.8%County context | 55.2% | 51.5% |
ACS values are survey estimates and may include margins of error.
Religion data may be available only at county or larger geographies. Sub-county values are labeled when inherited, modeled, or contextual.
Petaluma sits in the Pacific Coast. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 53.4 points in 2020. Between 2020 and 2024 the city moved 3.6 points toward the Republican candidate; the 2024 margin was 49.8 points.
A population of 59,247, a 70% non-Hispanic-white share, and a median household income of $115,430 describe the city.
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons →
Petaluma, California. Akashic. https://akashic.app/city/0656784/. Accessed May 20, 2026. License: CC BY 4.0.