| Localité | Code postal |
|---|---|
| Albion, Mendocino | 95410 |
| Anchor Bay, Mendocino | 95445 |
| Boonville, Mendocino | 95415 |
| Branscomb, Mendocino | 95417 |
| Calpella, Mendocino | 95418 |
| Caspar, Mendocino | 95420 |
| Cleone, Mendocino | 95437 |
| Comptche, Mendocino | 95427 |
| Covelo, Mendocino | 95428 |
| Dos Rios, Mendocino | 95429 |
| Elk, Mendocino | 95432 |
| Fort Bragg, Mendocino | 95437 |
| Gualala, Mendocino | 95445 |
| Hopland, Mendocino | 95449 |
| Inglenook, Mendocino | 95437 |
| Keene Summit, Mendocino | 95427 |
| Laytonville, Mendocino | 95454 |
| Laytonville Rancheria, Mendocino | 95454 |
| Leggett, Mendocino | 95585 |
| Little River, Mendocino | 95456 |
| Manchester, Mendocino | 95459 |
| Manchester Rancheria, Mendocino | 95459 |
| Mendocino, Mendocino | 95460 |
| Navarro, Mendocino | 95463 |
| Noyo, Mendocino | 95437 |
| Philo, Mendocino | 95466 |