Look up a Postal Code
| District / County name | Postal code | More |
|---|---|---|
| Alamo | 94507 | Alamo District, Contra Costa City, California Province, United States 94507 |
| Antioch | 94509 | Antioch District, Contra Costa City, California Province, United States 94509 |
| Bay Point | 94565 | Bay Point District, Contra Costa City, California Province, United States 94565 |
| Bethel Island | 94511 | Bethel Island District, Contra Costa City, California Province, United States 94511 |
| Blackhawk | 94506 | Blackhawk District, Contra Costa City, California Province, United States 94506 |
| Brentwood | 94513 | Brentwood District, Contra Costa City, California Province, United States 94513 |
| Briones | 94553 | Briones District, Contra Costa City, California Province, United States 94553 |
| Byron | 94505 | Byron District, Contra Costa City, California Province, United States 94505 |
| Canyon | 94516 | Canyon District, Contra Costa City, California Province, United States 94516 |
| Chevron | 94529 | Chevron District, Contra Costa City, California Province, United States 94529 |
| Chevron Usa Inc | 94529 | Chevron Usa Inc District, Contra Costa City, California Province, United States 94529 |
| Clayton | 94517 | Clayton District, Contra Costa City, California Province, United States 94517 |
| Clyde | 94520 | Clyde District, Contra Costa City, California Province, United States 94520 |
| Concord | 94527 | Concord District, Contra Costa City, California Province, United States 94527 |
| Crockett | 94525 | Crockett District, Contra Costa City, California Province, United States 94525 |
| Danville | 94506 | Danville District, Contra Costa City, California Province, United States 94506 |
| Diablo | 94528 | Diablo District, Contra Costa City, California Province, United States 94528 |
| Discovery Bay | 94514 | Discovery Bay District, Contra Costa City, California Province, United States 94514 |
| El Cerrito | 94530 | El Cerrito District, Contra Costa City, California Province, United States 94530 |
| El Sobrante | 94820 | El Sobrante District, Contra Costa City, California Province, United States 94820 |
| Hercules | 94547 | Hercules District, Contra Costa City, California Province, United States 94547 |
| Hilltop Mall | 94806 | Hilltop Mall District, Contra Costa City, California Province, United States 94806 |
| Knightsen | 94548 | Knightsen District, Contra Costa City, California Province, United States 94548 |
| Lafayette | 94549 | Lafayette District, Contra Costa City, California Province, United States 94549 |
| Martinez | 94553 | Martinez District, Contra Costa City, California Province, United States 94553 |
| Moraga | 94570 | Moraga District, Contra Costa City, California Province, United States 94570 |
| North Richmond | 94801 | North Richmond District, Contra Costa City, California Province, United States 94801 |
| Oakley | 94561 | Oakley District, Contra Costa City, California Province, United States 94561 |
| Orinda | 94563 | Orinda District, Contra Costa City, California Province, United States 94563 |
| Pacheco | 94553 | Pacheco District, Contra Costa City, California Province, United States 94553 |
| Pinole | 94564 | Pinole District, Contra Costa City, California Province, United States 94564 |
| Pittsburg | 94565 | Pittsburg District, Contra Costa City, California Province, United States 94565 |
| Pleasant Hill | 94523 | Pleasant Hill District, Contra Costa City, California Province, United States 94523 |
| Point Richmond | 94801 | Point Richmond District, Contra Costa City, California Province, United States 94801 |
| Port Chicago | 94565 | Port Chicago District, Contra Costa City, California Province, United States 94565 |
| Port Costa | 94569 | Port Costa District, Contra Costa City, California Province, United States 94569 |
| Richmond | 94804 | Richmond District, Contra Costa City, California Province, United States 94804 |
| Rodeo | 94572 | Rodeo District, Contra Costa City, California Province, United States 94572 |
| San Pablo | 94805 | San Pablo District, Contra Costa City, California Province, United States 94805 |
| San Ramon | 94583 | San Ramon District, Contra Costa City, California Province, United States 94583 |
| Tara Hills | 94806 | Tara Hills District, Contra Costa City, California Province, United States 94806 |
| Walnut Creek | 94596 | Walnut Creek District, Contra Costa City, California Province, United States 94596 |
| West Pittsburg | 94565 | West Pittsburg District, Contra Costa City, California Province, United States 94565 |
District / County name
Postal code
Alamo
94507
Alamo District, Contra Costa City, California Province, United States 94507
Antioch
94509
Antioch District, Contra Costa City, California Province, United States 94509
Bay Point
94565
Bay Point District, Contra Costa City, California Province, United States 94565
Bethel Island
94511
Bethel Island District, Contra Costa City, California Province, United States 94511
Blackhawk
94506
Blackhawk District, Contra Costa City, California Province, United States 94506
Brentwood
94513
Brentwood District, Contra Costa City, California Province, United States 94513
Briones
94553
Briones District, Contra Costa City, California Province, United States 94553
Byron
94505
Byron District, Contra Costa City, California Province, United States 94505
Canyon
94516
Canyon District, Contra Costa City, California Province, United States 94516
Chevron
94529
Chevron District, Contra Costa City, California Province, United States 94529
Chevron Usa Inc
94529
Chevron Usa Inc District, Contra Costa City, California Province, United States 94529
Clayton
94517
Clayton District, Contra Costa City, California Province, United States 94517
Clyde
94520
Clyde District, Contra Costa City, California Province, United States 94520
Concord
94527
Concord District, Contra Costa City, California Province, United States 94527
Crockett
94525
Crockett District, Contra Costa City, California Province, United States 94525
Danville
94506
Danville District, Contra Costa City, California Province, United States 94506
Diablo
94528
Diablo District, Contra Costa City, California Province, United States 94528
Discovery Bay
94514
Discovery Bay District, Contra Costa City, California Province, United States 94514
El Cerrito
94530
El Cerrito District, Contra Costa City, California Province, United States 94530
El Sobrante
94820
El Sobrante District, Contra Costa City, California Province, United States 94820
Hercules
94547
Hercules District, Contra Costa City, California Province, United States 94547
Hilltop Mall
94806
Hilltop Mall District, Contra Costa City, California Province, United States 94806
Knightsen
94548
Knightsen District, Contra Costa City, California Province, United States 94548
Lafayette
94549
Lafayette District, Contra Costa City, California Province, United States 94549
Martinez
94553
Martinez District, Contra Costa City, California Province, United States 94553
Moraga
94570
Moraga District, Contra Costa City, California Province, United States 94570
North Richmond
94801
North Richmond District, Contra Costa City, California Province, United States 94801
Oakley
94561
Oakley District, Contra Costa City, California Province, United States 94561
Orinda
94563
Orinda District, Contra Costa City, California Province, United States 94563
Pacheco
94553
Pacheco District, Contra Costa City, California Province, United States 94553
Pinole
94564
Pinole District, Contra Costa City, California Province, United States 94564
Pittsburg
94565
Pittsburg District, Contra Costa City, California Province, United States 94565
Pleasant Hill
94523
Pleasant Hill District, Contra Costa City, California Province, United States 94523
Point Richmond
94801
Point Richmond District, Contra Costa City, California Province, United States 94801
Port Chicago
94565
Port Chicago District, Contra Costa City, California Province, United States 94565
Port Costa
94569
Port Costa District, Contra Costa City, California Province, United States 94569
Richmond
94804
Richmond District, Contra Costa City, California Province, United States 94804
Rodeo
94572
Rodeo District, Contra Costa City, California Province, United States 94572
San Pablo
94805
San Pablo District, Contra Costa City, California Province, United States 94805
San Ramon
94583
San Ramon District, Contra Costa City, California Province, United States 94583
Tara Hills
94806
Tara Hills District, Contra Costa City, California Province, United States 94806
Walnut Creek
94596
Walnut Creek District, Contra Costa City, California Province, United States 94596
West Pittsburg
94565
West Pittsburg District, Contra Costa City, California Province, United States 94565