Colusa County, California ZIP Codes
- ZIP records
6 - Cities represented
6 - Sum of listed ZIP population estimates
21,592
Population sum includes positive estimates in these ZIP records; it is not an official county population.
Top ZIP Codes by Population
| Rank | ZIP Code | City | Population estimate |
|---|---|---|---|
| 1 | 95932 | Colusa | 7,701 |
| 2 | 95987 | Williams | 6,786 |
| 3 | 95912 | Arbuckle | 4,855 |
| 4 | 95955 | Maxwell | 1,405 |
| 5 | 95979 | Stonyford | 558 |
| 6 | 95950 | Grimes | 287 |
Cities in Colusa County
ZIP Directory
Browse all ZIP data for California
Methodology: Records are grouped by the source file's listed county and state. Population sums add positive ZIP-level estimates and are not official county totals; city counts use distinct city labels in the source.