US location post office
California ZIP Codes
| ZIP Code | Type | City | County | County Code |
|---|---|---|---|---|
| 94402 | Standard | San Mateo | San Mateo | 6081 |
| 94403 | Standard | San Mateo | San Mateo | 6081 |
| 94404 | Standard | San Mateo | San Mateo | 6081 |
| 94501 | Standard | Alameda | Alameda | 6001 |
| 94502 | Standard | Alameda | Alameda | 6001 |
| 94503 | Standard | American Canyon | Napa | 6055 |
| 94505 | Standard | Discovery Bay | Contra Costa | 6013 |
| 94506 | Standard | Danville | Contra Costa | 6013 |
| 94507 | Standard | Alamo | Contra Costa | 6013 |
| 94508 | Standard | Angwin | Napa | 6055 |
| 94509 | Standard | Antioch | Contra Costa | 6013 |
| 94510 | Standard | Benicia | Solano | 6095 |
| 94511 | POBox | Bethel Island | Contra Costa | 6013 |
| 94512 | Standard | Birds Landing | Solano | 6095 |
| 94513 | Standard | Brentwood | Contra Costa | 6013 |
| 94514 | Standard | Byron | Contra Costa | 6013 |
| 94515 | Standard | Calistoga | Napa | 6055 |
| 94516 | POBox | Canyon | Contra Costa | 6013 |
| 94517 | Standard | Clayton | Contra Costa | 6013 |
| 94518 | Standard | Concord | Contra Costa | 6013 |
| 94519 | Standard | Concord | Contra Costa | 6013 |
| 94520 | Standard | Concord | Contra Costa | 6013 |
| 94521 | Standard | Concord | Contra Costa | 6013 |
| 94523 | Standard | Pleasant Hill | Contra Costa | 6013 |
| 94525 | Standard | Crockett | Contra Costa | 6013 |
| 94526 | Standard | Danville | Contra Costa | 6013 |
| 94528 | POBox | Diablo | Contra Costa | 6013 |
| 94530 | Standard | El Cerrito | Contra Costa | 6013 |
| 94531 | Standard | Antioch | Contra Costa | 6013 |
| 94533 | Standard | Fairfield | Solano | 6095 |
| 94534 | Standard | Fairfield | Solano | 6095 |
| 94535 | Standard | Travis AFB | Solano | 6095 |
| 94536 | Standard | Fremont | Alameda | 6001 |
| 94538 | Standard | Fremont | Alameda | 6001 |
| 94539 | Standard | Fremont | Alameda | 6001 |
| 94541 | Standard | Hayward | Alameda | 6001 |
| 94542 | Standard | Hayward | Alameda | 6001 |
| 94544 | Standard | Hayward | Alameda | 6001 |
| 94545 | Standard | Hayward | Alameda | 6001 |
| 94546 | Standard | Castro Valley | Alameda | 6001 |
| 94547 | Standard | Hercules | Contra Costa | 6013 |
| 94548 | POBox | Knightsen | Contra Costa | 6013 |
| 94549 | Standard | Lafayette | Contra Costa | 6013 |
| 94550 | Standard | Livermore | Alameda | 6001 |
| 94551 | Standard | Livermore | Alameda | 6001 |
| 94552 | Standard | Castro Valley | Alameda | 6001 |
| 94553 | Standard | Martinez | Contra Costa | 6013 |
| 94555 | Standard | Fremont | Alameda | 6001 |
| 94556 | Standard | Moraga | Contra Costa | 6013 |
| 94558 | Standard | Napa | Napa | 6055 |
California Cities & Towns
- Los Angeles(65)
- San Diego(37)
- Sacramento(28)
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- Fresno(18)
- Oakland(14)
- Long Beach(13)
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- Modesto(7)
- Anaheim(7)
- Pasadena(6)
- Santa Ana(6)
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- Whittier(6)
- Chula Vista(5)
- Inglewood(5)
- Corona(5)
- Salinas(5)
- Santa Monica(5)
- Burbank(5)
- Garden Grove(5)
- Orange(5)
- Moreno Valley(4)
- Palmdale(4)
- Richmond(4)
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- Palo Alto(4)
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- Van Nuys(4)
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- Escondido(4)
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