Colusa County's estimated 2025 population is 22,293 with a growth rate of 0.58% in the past year according to the most recent United States census data. Colusa County is the 50th largest county in California. The 2010 population was 21,435 and has seen a growth of 4% since that time.
Data after 2023 is projected based on recent change
The racial composition of Colusa County includes 51.2% White, 25.36% other race, and smaller percentages for Black or African American, Native American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.
White
Other race
Two or more races
Black or African American
Native American
Asian
Native Hawaiian or Pacific Islander
Race | Population | Percentage (of total) |
|---|---|---|
| White | 11,210 | 51.2% |
| Other race | 5,553 | 25.36% |
| Two or more races | 4,354 | 19.89% |
| Black or African American | 311 | 1.42% |
| Native American | 308 | 1.41% |
| Asian | 145 | 0.66% |
| Native Hawaiian or Pacific Islander | 14 | 0.06% |
Married
Widowed
Divorced
Separated
Never Married
Colusa County's average per capita income is $45,193. Household income levels show a median of $75,149. The poverty rate stands at 10.8%.
Name | Median | Mean |
|---|---|---|
| Married Families | $100,662 | - |
| Families | $89,214 | $110,132 |
| Households | $75,149 | $93,585 |
| Non Families | $35,667 | $50,860 |
Average Income
Median Household Income
Poverty Rate