Mendocino County's 2026 population is estimated at 88,817, reflecting a -0.2% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Mendocino County is the 39th largest county in California. The 2010 population was 87,796 and has grown 1.16% since 2010.
Data after 2023 is projected based on recent change
Overall: 44.1 years
Female: 45.5 years
Male: 43.2 years
There are 71,347 adults, (22,154 of whom are seniors) in Mendocino County.
Female: 45,508 (50.4%)
Male: 44,736 (49.6%)
The racial composition of Mendocino County includes 64.32% White, 9.25% other race, 3.56% Native American, and smaller percentages for Asian, Black or African American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 58,041 | 64.32% |
| Two or more races | 18,007 | 19.95% |
| Other race | 8,349 | 9.25% |
| Native American | 3,209 | 3.56% |
| Asian | 1,907 | 2.11% |
| Black or African American | 672 | 0.74% |
| Native Hawaiian or Pacific Islander | 59 | 0.07% |
Mendocino County 's average per capita income is $45,711. Household income levels show a median of $68,092. The poverty rate stands at 15.36%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $104,532 | $132,044 |
| Families | $88,969 | $114,528 |
| Households | $68,092 | $95,438 |
| Non Families | $45,331 | $63,491 |
Average Income
Median Household Income
Poverty Rate