Humboldt County, California ZIP codes
38 ZIP codes are in Humboldt County, plus 1 that cross in from neighboring counties. It's part of the Eureka-Arcata, CA micro area.
- ZIP codes
- 38
- Population in these ZIPs
- 134,809
- Avg. median income
- $62,500population-weighted
- Cities & towns
- 35
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Humboldt County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 95501 | Eureka | 22,890 | $54,137 | $376,300 |
| 95502 PO Box | Eureka | — | — | — |
| 95503 | Eureka | 25,054 | $71,855 | $417,200 |
| 95511 | Alderpoint | 71 | — | — |
| 95514 | Blocksburg | 85 | — | — |
| 95518 PO Box | Arcata | — | — | — |
| 95519 | Mckinleyville | 18,728 | $73,280 | $473,600 |
| 95521 | Arcata | 21,980 | $53,114 | $470,500 |
| 95524 | Bayside | 1,634 | $87,500 | $599,200 |
| 95525 | Blue Lake | 1,441 | $57,379 | $440,300 |
| 95526 | Bridgeville | 745 | $39,583 | $213,700 |
| 95528 | Carlotta | 1,286 | $55,481 | $348,100 |
| 95534 PO Box | Cutten | — | — | — |
| 95536 | Ferndale | 3,050 | $73,375 | $491,600 |
| 95537 | Fields Landing | 532 | $78,686 | $435,500 |
| 95540 | Fortuna | 14,469 | $63,695 | $407,900 |
| 95542 | Garberville | 2,463 | $46,104 | $314,600 |
| 95545 | Honeydew | 194 | — | $576,900 |
| 95546 | Hoopa | 2,397 | $61,607 | $253,400 |
| 95547 | Hydesville | 1,263 | $96,827 | $517,000 |
| 95549 | Kneeland | 1,024 | $95,179 | $538,700 |
| 95550 | Korbel | 140 | $104,063 | $2,000,001 |
| 95551 | Loleta | 1,880 | $64,519 | $431,000 |
| 95553 | Miranda | 789 | $41,450 | $325,000 |
| 95554 | Myers Flat | 368 | $33,125 | $594,800 |
| 95555 | Orick | 216 | $39,583 | $433,300 |
| 95556 | Orleans | 949 | — | $311,300 |
| 95558 | Petrolia | 230 | $51,719 | $566,200 |
| 95559 | Phillipsville | 41 | — | — |
| 95560 | Redway | 1,213 | $23,720 | $257,500 |
| 95562 | Rio Dell | 3,422 | $42,975 | $301,300 |
| 95564 | Samoa | 444 | $78,750 | $480,800 |
| 95565 | Scotia | 764 | $57,083 | $364,600 |
| 95569 | Redcrest | 99 | — | $287,500 |
| 95570 | Trinidad | 2,640 | $74,777 | $569,300 |
| 95571 | Weott | 104 | — | — |
| 95573 | Willow Creek | 1,089 | $47,258 | $310,800 |
| 95589 | Whitethorn | 1,115 | $43,040 | $350,400 |
ZIP codes partly in Humboldt County
These ZIP codes are mostly in a neighboring county but cover part of Humboldt County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 95552 | Mad River | Trinity County | 586 | $77,796 | $211,100 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in Humboldt County
Nearby counties
Frequently asked questions
How many ZIP codes are in Humboldt County, California?
38 ZIP codes are mainly in Humboldt County, and 1 more ZIP codes from neighboring areas reach partly into it.
What cities are in Humboldt County?
ZIP codes in Humboldt County use the city names Alderpoint, Arcata, Bayside, Blocksburg, Blue Lake, Bridgeville, Carlotta, Cutten, Eureka, Ferndale, Fields Landing and Fortuna and others.
What metro area is Humboldt County in?
Humboldt County is part of the Eureka-Arcata, CA micropolitan statistical area.