Contra Costa County, California ZIP Codes

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ZIP Codes in Contra Costa County with Associated Cities & Towns

Contra Costa County, CA - Standard ZIP Codes
94505 | 94506 | 94507 | 94509 | 94513 | 94514 | 94517 | 94518 | 94519 | 94520 | 94521 | 94523 | 94525 | 94526 | 94530 | 94531 | 94547 | 94549 | 94551 | 94553 | 94556 | 94561 | 94563 | 94564 | 94565 | 94572 | 94575 | 94582 | 94583 | 94595 | 94596 | 94597 | 94598 | 94706 | 94707 | 94708 | 94801 | 94803 | 94804 | 94805 | 94806 | 94850
Contra Costa County, CA - PO Box ZIP Codes (NO DEMOGRAPHIC DATA)
94511 | 94516 | 94522 | 94524 | 94527 | 94528 | 94548 | 94569 | 94570 | 94802 | 94807 | 94808 | 94820
Contra Costa County, CA - Unique - Single Entity ZIP Codes (NO DEMOGRAPHIC DATA)
94529
Note: Every ZIP Code has a single ACTUAL City Name assigned by the US Postal Service (USPS).
See the specific ZIP Code for acceptable Alternate City Names and spelling variations.

ZIP Codes in Contra Costa County Address Data

  • Businesses Addresses: 37,447
  • PO Box Addresses: 21,662
  • Residential Addresses: 445,405
    • Multi-Family Addresses: 77,798
    • Single Family Addresses: 364,538

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Map of Contra Costa County, CA ZIP Codes With Actual (Default) City Names

Alamo
Antioch
Bethel Island
Brentwood
Byron
Canyon
Clayton
Concord
Crockett
Danville
Diablo
Discovery Bay
El Cerrito
El Sobrante
Hercules
Knightsen
Lafayette
Martinez
Moraga
Oakley
Orinda
Pinole
Pittsburg
Pleasant Hill
Port Costa
Richmond
Rodeo
San Pablo
San Ramon
Walnut Creek


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