California FIPS (Federal Information Processing Standards)
| County FIPS | City | County |
|---|---|---|
| 6101 | Abbott | Sutter |
| 6027 | Aberdeen | Inyo |
| 6013 | Acalanes Ridge | Contra Costa |
| 6077 | Acampo | San Joaquin |
| 6025 | Acolita | Imperial |
| 6029 | Actis | Kern |
| 6037 | Acton | Los Angeles |
| 6033 | Adams | Lake |
| 6037 | Adams Square | Los Angeles |
| 6099 | Adela | Stanislaus |
| County FIPS | City | County |
