Cities and Towns in Humboldt County, California
Founded in 1853, Humboldt County is one of 58 counties in the state of California. Historically, Humboldt County was formed from Trinity. The city of Eureka is the county seat. With FIPS code of 23, Humboldt County has a population of 136,310 and area of 3,573 square miles (9,254 km²).
List of all cities in Humboldt County, CA alphabetically
| City/Town | Postal Code | Area Code |
| Alderpoint, CA | 95511 | 707 |
| Arcata, CA | 95518 | 707 |
| 95521 | 707 | |
| Bayside, CA | 95524 | 707 |
| Blocksburg, CA | 95514 | 707 |
| Blue Lake, CA | 95525 | 707 |
| Bridgeville, CA | 95526 | 707 |
| Carlotta, CA | 95528 | 707 |
| Cutten, CA | 95501 | 707 |
| 95534 | 707 | |
| Eureka, CA | 95501 | 707 |
| 95502 | 707 | |
| 95503 | 707 | |
| 95534 | 707 | |
| Ferndale, CA | 95536 | 707 |
| Fields Landing, CA | 95537 | 707 |
| Fields Lodge, CA | 95537 | 707 |
| Fortuna, CA | 95540 | 707 |
| Garberville, CA | 95542 | 707 |
| Honeydew, CA | 95545 | 707 |
| Hoopa, CA | 95546 | 530 |
| Hoopa Valley Indian Reservat, CA | 95546 | 530 |
| Hydesville, CA | 95547 | 707 |
| Kneeland, CA | 95549 | 707 |
| Korbel, CA | 95550 | 707 |
| Loleta, CA | 95551 | 707 |
| Manila, CA | 95521 | 707 |
| McKinleyville, CA | 95519 | 707 |
| 95521 | 707 | |
| Miranda, CA | 95553 | 707 |
| Myers Flat, CA | 95554 | 707 |
| Orick, CA | 95555 | 707 |
| Orleans, CA | 95556 | 530 |
| Petrolia, CA | 95558 | 707 |
| Phillipsville, CA | 95559 | 707 |
| Redcrest, CA | 95569 | 707 |
| Redway, CA | 95560 | 707 |
| Resighini Rancheria, CA | 95546 | 530 |
| Rio Dell, CA | 95562 | 707 |
| Ruth, CA | 95526 | 707 |
| Samoa, CA | 95564 | 707 |
| Scotia, CA | 95565 | 707 |
| Shelter Cove, CA | 95589 | 707 |
| Trinidad, CA | 95570 | 707 |
| Weitchpec, CA | 95546 | 530 |
| Weott, CA | 95571 | 707 |
| Westhaven, CA | 95570 | 707 |
| Whitethorn, CA | 95589 | 707 |
| Willow Creek, CA | 95573 | 530 |
Map of Cities in Humboldt County, CA
