| Name | Colusa County |
| State | California |
| FIPS Code | 06011 |
| County Seat | Colusa |
| Timezone | Pacific Standard Time (PST) |
| Population (2022) | 21,329 |
| Population Growth Rate(2000-2022) | 1.96% |
| Majority Ethnicity | White 93.6% |
| Public School Majority Ethnicity | Hispanic 79% |
| Partisan Voting Index | Republican:+12 |
| Unemployment Rate (January 2025) | 11.9% |
| Area Code(s) | 530 |
| Race/Ethnicity | Percentage of Population (2022) |
|---|---|
| White | 93.6% |
| African American | 2.58% |
| Hispanic | 2.33% |
| Asian | 1.16% |
| Native American | 0.16% |
| Hawaiin/Pacific Islander | 0.16% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 16.35% |
| African American | 0.69% |
| Hispanic | 79.08% |
| Asian | 1.08% |
| Native American | 1.35% |
| Hawaiin/Pacific Islander | 0.14% |