First three digits · California
ZIP Codes Starting with
51 ZIP codes start with 955, sorted at the Eureka, CA (SCF 955) sectional center (USPS labeling list L005, effective October 1, 2026) in California: 47 residential ZIP codes across 5 counties and 4 PO Box or single-organization codes (Census 2020 ZCTAs and GeoNames postal codes, October 2026).
What do the digits 955 mean?
The first digit, 9, is one of ten national areas (Alaska, California, Hawaii, Oregon, Washington, American Samoa, Guam, Northern Mariana Islands, Marshall Islands, Micronesia, Palau and Armed Forces Pacific). The first three, 955, route mail to a sectional center: USPS labeling list L005 (effective October 1, 2026) sends letters for 955 to the Eureka, CA (SCF 955) facility. The last two digits pick the delivery area. By residents, the largest town names among the 955 ZIP codes are Eureka, Crescent City, Arcata, McKinleyville, Fortuna and Rio Dell.
955 is the only prefix the Eureka, CA (SCF 955) facility sorts.
Where are the 955 ZIP codes?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
All ZIP codes starting with 955
| County | ||||||
|---|---|---|---|---|---|---|
| 95501 | Eureka | Humboldt County | 22,890 | 3,119 | $54k | $412k |
| 95502 | Eureka | Humboldt County | PO Box or unique | – | – | – |
| 95503 | Eureka | Humboldt County | 25,054 | 299 | $72k | $445k |
| 95511 | Alderpoint | Humboldt County | 71 | 2 | – | – |
| 95514 | Blocksburg | Humboldt County | 85 | 1 | – | – |
| 95518 | Arcata | Humboldt County | PO Box or unique | – | – | – |
| 95519 | McKinleyville | Humboldt County | 18,728 | 348 | $73k | $469k |
| 95521 | Arcata | Humboldt County | 21,980 | 364 | $53k | $501k |
| 95524 | Bayside | Humboldt County | 1,634 | 201 | $88k | $602k |
| 95525 | Blue Lake | Humboldt County | 1,441 | 16 | $57k | $479k |
| 95526 | Bridgeville | Humboldt County | 745 | 6 | $40k | $281k |
| 95527 | Burnt Ranch | Trinity County | 622 | 4 | $77k | $338k |
| 95528 | Carlotta | Humboldt County | 1,286 | 15 | $56k | $506k |
| 95531 | Crescent City | Del Norte County | 22,291 | 118 | $68k | $351k |
| 95532 | Crescent City | Del Norte County | PO Box or unique | – | – | – |
| 95534 | Cutten | Humboldt County | PO Box or unique | – | – | – |
| 95536 | Ferndale | Humboldt County | 3,050 | 19 | $73k | $566k |
| 95537 | Fields Landing | Humboldt County | 532 | 1,785 | $79k | $436k |
| 95538 | Fort Dick | Del Norte County | 1,158 | 612 | $67k | $293k |
| 95540 | Fortuna | Humboldt County | 14,469 | 425 | $64k | $390k |
| 95542 | Garberville | Humboldt County | 2,463 | 11 | $46k | $396k |
| 95543 | Gasquet | Del Norte County | 523 | 4 | $50k | $195k |
| 95545 | Honeydew | Humboldt County | 194 | 1 | – | $577k |
| 95546 | Hoopa | Humboldt County | 2,397 | 27 | $62k | $253k |
| 95547 | Hydesville | Humboldt County | 1,263 | 122 | $97k | $481k |
| 95548 | Klamath | Del Norte County | 1,024 | 18 | $43k | $215k |
| 95549 | Kneeland | Humboldt County | 1,024 | 7 | $95k | $652k |
| 95550 | Korbel | Humboldt County | 140 | 1 | $104k | $2M+ |
| 95551 | Loleta | Humboldt County | 1,880 | 44 | $65k | $558k |
| 95552 | Mad River | Trinity County | 586 | 4 | $78k | – |
| 95553 | Miranda | Humboldt County | 789 | 11 | $42k | $446k |
| 95554 | Myers Flat | Humboldt County | 368 | 11 | $33k | $595k |
| 95555 | Orick | Humboldt County | 216 | 2 | $40k | $433k |
| 95556 | Orleans | Humboldt County | 949 | 6 | – | $311k |
| 95558 | Petrolia | Humboldt County | 230 | 1 | $52k | $566k |
| 95559 | Phillipsville | Humboldt County | 41 | 2 | – | – |
| 95560 | Redway | Humboldt County | 1,213 | 73 | $24k | $392k |
| 95562 | Rio Dell | Humboldt County | 3,422 | 207 | $43k | $305k |
| 95563 | Salyer | Trinity County | 577 | 9 | $63k | $407k |
| 95564 | Samoa | Humboldt County | 444 | 133 | $79k | $481k |
| 95565 | Scotia | Humboldt County | 764 | 23 | $57k | $365k |
| 95567 | Smith River | Del Norte County | 2,058 | 33 | $103k | $373k |
| 95568 | Somes Bar | Siskiyou County | 223 | 2 | – | $282k |
| 95569 | Redcrest | Humboldt County | 99 | 2 | – | $288k |
| 95570 | Trinidad | Humboldt County | 2,640 | 50 | $75k | $635k |
| 95571 | Weott | Humboldt County | 104 | 16 | – | – |
| 95573 | Willow Creek | Humboldt County | 1,089 | 9 | $47k | $388k |
| 95585 | Leggett | Mendocino County | 522 | 9 | $36k | – |
| 95587 | Piercy | Mendocino County | no residents | 0 | – | – |
| 95589 | Whitethorn | Humboldt County | 1,115 | 7 | $43k | $450k |
| 95595 | Zenia | Trinity County | 133 | 0 | $29k | $554k |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; GeoNames postal codes (CC BY 4.0) for codes without a residential area.