| Business | Phone |
| Colusa Cnty Sheriff-Emergency 929 Bridge St, Colusa 95932 | (530) 458-0218 |
| Colusa County Crime Prevention 929 Bridge St, Colusa 95932 | (530) 458-0231 |
| Colusa County Sheriff Dept 929 Bridge St, Colusa 95932 | (530) 458-0200 |
| Colusa County Sheriff-Civil 929 Bridge St, Colusa 95932 | (530) 458-0227 |
| Colusa County Sheriff-Criminal 929 Bridge St, Colusa 95932 | (530) 458-0215 |