Contra Costa County, CA Zip Codes
35 zip codes across 26 cities in Contra Costa County, CA
About Contra Costa County
Contra Costa County, California (CA) contains 35 unique zip codes spanning 26 cities and communities. Each zip code covers a different area within the county, with varying demographics, income levels, and housing markets.
Browse the complete list below to find detailed population, income, home values, cost of living, and climate data for any zip code in Contra Costa County.
Cities in Contra Costa County
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All Zip Codes in Contra Costa County, CA
| Zip Code | City |
|---|---|
| 94506 | Danville |
| 94507 | Alamo |
| 94509 | Antioch |
| 94511 | Bethel Island |
| 94513 | Brentwood |
| 94514 | Byron |
| 94517 | Clayton |
| 94518 | Concord |
| 94519 | Concord |
| 94520 | Concord |
| 94521 | Concord |
| 94523 | Concord |
| 94525 | Crockett |
| 94526 | Danville |
| 94530 | El Cerrito |
| 94547 | Hercules |
| 94549 | Lafayette |
| 94553 | Martinez |
| 94556 | Moraga |
| 94561 | Oakley |
| 94563 | Orinda |
| 94564 | Pinole |
| 94565 | Pittsburg |
| 94569 | Port Costa |
| 94572 | Rodeo |
| 94583 | San Ramon |
| 94595 | Walnut Creek |
| 94596 | Walnut Creek |
| 94598 | Walnut Creek |
| 94801 | Richmond |
| 94803 | El Sobrante |
| 94804 | Richmond |
| 94805 | San Pablo |
| 94806 | San Pablo |
| 948HH | Zcta 948hh |
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Frequently Asked Questions
How many zip codes are in Contra Costa County, CA?
Contra Costa County, CA has 35 zip codes across 26 cities.
What cities are in Contra Costa County?
Cities in Contra Costa County include Alamo, Antioch, Bethel Island, Brentwood, Byron, Clayton, Concord, Crockett, Danville, El Cerrito, El Sobrante, Hercules, Lafayette, Martinez, Moraga, Oakley, Orinda, Pinole, Pittsburg, Port Costa, Richmond, Rodeo, San Pablo, San Ramon, Walnut Creek, Zcta 948hh.
What state is Contra Costa County in?
Contra Costa County is located in California (CA).
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.