Sonoma County's estimated 2025 population is 480,098 with a growth rate of -0.18% in the past year according to the most recent United States census data. Sonoma County is the 18th largest county in California. The 2010 population was 484,675 and has seen a growth of -0.94% since that time.
Data after 2023 is projected based on recent change
The racial composition of Sonoma County includes 64.55% White, 14.12% other race, 4.44% Asian, and smaller percentages for Black or African American, Native American, Native Hawaiian or Pacific Islander and multiracial populations.
White
Other race
Two or more races
Asian
Black or African American
Native American
Native Hawaiian or Pacific Islander
Race | Population | Percentage (of total) |
|---|---|---|
| White | 313,481 | 64.55% |
| Other race | 68,565 | 14.12% |
| Two or more races | 66,532 | 13.7% |
| Asian | 21,539 | 4.44% |
| Black or African American | 7,546 | 1.55% |
| Native American | 6,186 | 1.27% |
| Native Hawaiian or Pacific Islander | 1,793 | 0.37% |
Married
Widowed
Divorced
Separated
Never Married
Sonoma County's average per capita income is $57,092. Household income levels show a median of $102,840. The poverty rate stands at 8.57%.
Name | Median | Mean |
|---|---|---|
| Married Families | $143,830 | $179,875 |
| Families | $124,032 | $160,331 |
| Households | $102,840 | $138,572 |
| Non Families | $66,195 | $93,580 |
Average Income
Median Household Income
Poverty Rate