Sonoma County's estimated 2026 population is 489,393 with a growth rate of 0.41% in the past year according to the most recent United States census data. Sonoma County is the 17th largest county in California. The 2010 population was 484,675 and has seen a growth of 0.97% 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 (64.55%)
Other race (14.12%)
Two or more races (13.7%)
Asian (4.44%)
Black or African American (1.55%)
Native American (1.27%)
Native Hawaiian or Pacific Islander (0.37%)
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