Mendocino County, California
Located in California, Mendocino County has a population of 90,244 residents and a median age of 44.1 years, making it the #669 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 15.4%. The median home value is $512,200, and the median household income is $68,092, which is 9% below the national median.
Demographics
Mendocino County has a population of 90,244, making it the #669 most populous county in the US. The median age is 44.1 years, which is 13.4% above the national median.
Population Trend
Rankings →Year-over-Year Population Growth
Age & Sex Distribution
Race & Ethnicity
Nativity
Geographic Mobility (Past Year)
Economy
The median household income in Mendocino County is $68,092, ranking #1,333 out of 3,222 counties — 9.4% below the national median. The poverty rate is 15.4% and unemployment stands at 9.0%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Mendocino County is $512,200 (+81.7% vs national). Renters pay a median of $1,317/mo and the homeownership rate is 61.7%.
Median Home Value Trend
Rankings →Household Type
Education
In Mendocino County, 25.2% of adults age 25+ hold a bachelor's degree or higher, which is 25.4% below the national average, ranking #1,203 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Mendocino County is 76.8 years. 19.6% of adults report poor or fair health and 10.3% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
14.5% of adults in Mendocino County smoke , 29.4% are obese , and 22.4% report excessive drinking. The drug overdose death rate is 67.0 per 100,000.
Adult Smoking Trend
Safety
The homicide rate in Mendocino County is 6.8 per 100,000 and the suicide rate is 20.1 per 100,000. Motor vehicle deaths occur at a rate of 22.2 per 100,000.
Homicide Rate Trend
Families & Children
18.8% of children in Mendocino County live in poverty and the infant mortality rate is 5.6 per 1,000 live births. The teen birth rate is 18.4 per 1,000 females age 15–19.
Infant Mortality Trend
Civic & Transportation
Voter turnout in Mendocino County is 69.5%. The mean commute time is 23.4 min, which is 15.2% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Mendocino County voted Democratic with a margin of 26.8%. The vote was 61.3% Dem / 34.5% Rep. Compared to 2020, the margin shifted 9.0 toward Republicans .
Vote Share Over Time
About Mendocino County, California
Mendocino County, California has a total population of 90,244, making it the 669th most populous county in the United States. The median age in Mendocino County is 44.1 years, which is 13.4% above the national median of 38.9 years.
The median household income in Mendocino County is $68,092, which ranks #1,333 of 3,222 counties nationwide. This is 9.4% below the national median of $75,149. The poverty rate is 15.4%, higher than the national rate of 12.6%. The unemployment rate stands at 9.0%.
The median home value in Mendocino County is $512,200, 81.7% above the national median. Renters in Mendocino County pay a median gross rent of $1,317 per month. The homeownership rate is 61.7%, compared to the national rate of 64.4%.
In Mendocino County, 25.2% of residents aged 25 and older hold a bachelor's degree or higher, 25.4% below the national average of 33.7%. Health insurance coverage stands at 92.3% of the population. The average commute time for workers is 23.4 min.
Mendocino County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 61.1% of the population, followed by Hispanic or Latino (27.6%) and Two or More Races (5.2%).
All data for Mendocino County, California comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates. These figures are estimates based on survey sampling and are subject to margin of error. For the most detailed and up-to-date data, visit the Census Bureau's official data portal.