| Zip Code | City | County |
|---|---|---|
| 94506 | Blackhawk | Contra Costa County |
| 94506 | Danville | Contra Costa County |
| 94507 | Alamo | Contra Costa County |
| 94509 | Antioch | Contra Costa County |
| 94511 | Bethel Island | Contra Costa County |
| 94513 | Brentwood | Contra Costa County |
| 94514 | Byron | Contra Costa County |
| 94514 | Discovery Bay | Contra Costa County |
| 94516 | Canyon | Contra Costa County |
| 94517 | Clayton | Contra Costa County |
| 94518 | Concord | Contra Costa County |
| 94519 | Concord | Contra Costa County |
| 94520 | Concord | Contra Costa County |
| 94521 | Concord | Contra Costa County |
| 94522 | Concord | Contra Costa County |
| 94523 | Concord | Contra Costa County |
| 94523 | Pleasant Hill | Contra Costa County |
| 94524 | Concord | Contra Costa County |
| 94525 | Crockett | Contra Costa County |
| 94526 | Danville | Contra Costa County |
| 94527 | Concord | Contra Costa County |
| 94528 | Diablo | Contra Costa County |
| 94530 | El Cerrito | Contra Costa County |
| 94530 | Richmond | Contra Costa County |
| 94531 | Antioch | Contra Costa County |
| 94547 | Rodeo | Contra Costa County |
| 94547 | Hercules | Contra Costa County |
| 94548 | Knightsen | Contra Costa County |
| 94549 | Lafayette | Contra Costa County |
| 94553 | Pacheco | Contra Costa County |
| 94553 | Martinez | Contra Costa County |
| 94556 | Moraga | Contra Costa County |
| 94561 | Oakley | Contra Costa County |
| 94563 | Orinda | Contra Costa County |
| 94564 | Pinole | Contra Costa County |
| 94565 | Bay Point | Contra Costa County |
| 94565 | Pittsburg | Contra Costa County |
| 94569 | Port Costa | Contra Costa County |
| 94570 | Moraga | Contra Costa County |
| 94572 | Rodeo | Contra Costa County |
| 94575 | Moraga | Contra Costa County |
| 94583 | San Ramon | Contra Costa County |
| 94595 | Walnut Creek | Contra Costa County |
| 94596 | Walnut Creek | Contra Costa County |
| 94597 | Walnut Creek | Contra Costa County |
| 94598 | Walnut Creek | Contra Costa County |
| 94801 | North Richmond | Contra Costa County |
| 94801 | Point Richmond | Contra Costa County |
| 94801 | Richmond | Contra Costa County |
| 94802 | Richmond | Contra Costa County |
| 94803 | El Sobrante | Contra Costa County |
| 94803 | Richmond | Contra Costa County |
| 94804 | Richmond | Contra Costa County |
| 94805 | Richmond | Contra Costa County |
| 94806 | Hilltop Mall | Contra Costa County |
| 94806 | Richmond | Contra Costa County |
| 94806 | San Pablo | Contra Costa County |
| 94807 | Richmond | Contra Costa County |
| 94808 | Richmond | Contra Costa County |
| 94820 | El Sobrante | Contra Costa County |
| 94820 | Richmond | Contra Costa County |
| 94850 | Richmond | Contra Costa County |
Zip code lists for other counties in the San Francisco Bay Area:
