Colusa County, California Demographics 2026

Population Overview

Colusa County is located in California with a total population of 21,895. It is the 50th most populous county out of 58 in California.

Age Demographics

The median age in Colusa County is 35.7 years. This is 5% lower than the state median of 37.6 years.

Economy, Income & Housing

The median household income in Colusa County is $75,149. This is 22% lower than the state median of $96,334. Compared to the national median of $78,538, household income here is 4% lower. The poverty rate stands at 10.8%. This is 10% lower than the state poverty rate of 12.0%. The unemployment rate is 8.4%. This is 31% higher than the state rate of 6.4%. The median home value is $375,100. Housing costs are 46% lower than the state median of $695,400. The home-value-to-income ratio is 5.0x. 62.2% of occupied housing units are owner-occupied. This homeownership rate is 12% higher than the state average of 55.8%.

Race & Ethnicity

The largest racial or ethnic group in Colusa County is Hispanic or Latino, making up 62.3% of the population. White (non-Hispanic) residents account for 31.4%. The Black or African American population (1.4%) is well below the state average of 5.3%. The Hispanic or Latino population is significantly higher than the state average (62.3% vs 39.8%). The Asian population (0.5%) is well below the state average of 15.0%.

Education

14.5% of residents aged 25 and older hold a bachelor's degree or higher. This is among the lowest rates in the state, which may correlate with employment and income patterns. This is 60% lower than the state rate of 36.5%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 73.2%.