County · California · United States
Humboldt County ZIP codes
35 ZIP codes · 34 cities · FIPS 06023
Key facts
- State
- California (CA)
- FIPS code
- 06023
- Population
- 135,418
- Median household income
- $61,135
- Median age
- 39.6
- Land area
- 3,568.2 sq mi (9,241.6 km²)
- Population density
- 38 / sq mi
- Area codes
- 369, 530, 707
Cities and ZIP codes in Humboldt County (34)
About this page
County figures are Census county-level values (ACS 5-year); the ZIP list shows the ZIPs whose primary county this is — a ZIP on a border can also serve neighbouring counties.
Sources: U.S. Census Bureau (2020 county relationship file, ACS 5-year) · GeoNames. Methodology.