Colusa County, California
Located in California, Colusa County has a population of 21,984 residents and a median age of 35.9 years, making it the #1,776 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 11.4%. The median home value is $393,400, and the median household income is $75,672, which is 1% above the national median.
Demographics
Colusa County has a population of 21,984, making it the #1,776 most populous county in the US. The median age is 35.9 years, which is 7.7% below 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 Colusa County is $75,672, ranking #798 out of 3,222 counties — 0.7% above the national median. The poverty rate is 11.4% and unemployment stands at 9.8%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Colusa County is $393,400 (+39.6% vs national). Renters pay a median of $1,157/mo and the homeownership rate is 62.2%.
Median Home Value Trend
Rankings →Household Type
Education
In Colusa County, 16.4% of adults age 25+ hold a bachelor's degree or higher, which is 51.4% below the national average, ranking #2,603 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Colusa County is 79.2 years. 24.0% of adults report poor or fair health and 9.8% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
14.7% of adults in Colusa County smoke , 32.2% are obese , and 21.6% report excessive drinking. The drug overdose death rate is 16.8 per 100,000.
Adult Smoking Trend
Safety
The suicide rate is 9.2 per 100,000. Motor vehicle deaths occur at a rate of 26.3 per 100,000.
Suicide Rate Trend
Families & Children
14.2% of children in Colusa County live in poverty . The teen birth rate is 16.4 per 1,000 females age 15–19.
Teen Birth Rate Trend
Civic & Transportation
Voter turnout in Colusa County is 62.9%. The mean commute time is 27.0 min, which is 2.0% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Colusa County voted Republican with a margin of 28.3%. The vote was 34.6% Dem / 62.9% Rep. Compared to 2020, the margin shifted 11.7 toward Republicans .
Vote Share Over Time
About Colusa County, California
Colusa County, California has a total population of 21,984, making it the 1,776th most populous county in the United States. The median age in Colusa County is 35.9 years, which is 7.7% below the national median of 38.9 years.
The median household income in Colusa County is $75,672, which ranks #798 of 3,222 counties nationwide. This is 0.7% above the national median of $75,149. The poverty rate is 11.4%, lower than the national rate of 12.6%. The unemployment rate stands at 9.8%.
The median home value in Colusa County is $393,400, 39.6% above the national median. Renters in Colusa County pay a median gross rent of $1,157 per month. The homeownership rate is 62.2%, compared to the national rate of 64.4%.
In Colusa County, 16.4% of residents aged 25 and older hold a bachelor's degree or higher, 51.4% below the national average of 33.7%. Health insurance coverage stands at 92.0% of the population. The average commute time for workers is 27.0 min.
Colusa County is a diverse community. The largest racial or ethnic group is Hispanic or Latino at 62.9% of the population, followed by White (non-Hispanic) (29.8%) and Two or More Races (2.5%).
All data for Colusa 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.