| Alderpoint, Humboldt |
95511 |
| Arcata, Humboldt |
95521 |
| Bayside, Humboldt |
95524 |
| Blocksburg, Humboldt |
95514 |
| Blue Lake, Humboldt |
95525 |
| Bridgeville, Humboldt |
95526 |
| Carlotta, Humboldt |
95528 |
| Cutten, Humboldt |
95534 |
| Eureka, Humboldt |
95501, 95502, 95503 |
| Ferndale, Humboldt |
95536 |
| Fields Landing, Humboldt |
95537 |
| Fortuna, Humboldt |
95540 |
| Garberville, Humboldt |
95542 |
| Honeydew, Humboldt |
95545 |
| Hoopa, Humboldt |
95546 |
| Hoopa Valley Indian Reservation, Humboldt |
95546 |
| Hydesville, Humboldt |
95547 |
| Kneeland, Humboldt |
95549 |
| Korbel, Humboldt |
95550 |
| Loleta, Humboldt |
95551 |
| Mad River, Humboldt |
95526 |
| Manila, Humboldt |
95521 |
| McKinleyville, Humboldt |
95519 |
| Miranda, Humboldt |
95553 |
| Myers Flat, Humboldt |
95554 |
| Orick, Humboldt |
95555 |