Brentwood, CA ZIP Code
Brentwood, California has one ZIP code: .
Mail addressed to Brentwood covers nearby places too.
Where the 94513 ZIP code reaches
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Dashed line: Brentwood city limits.
Map: Census Bureau ZIP Code Tabulation Areas (2020) and place limits (2024).
Check an address in Brentwood
Street ranges from the Census Bureau, 2026. PO box and organization ZIP codes are not found by street. A new street may be missing: address not found?
Why your mail may say Brentwood when you live outside it
Brentwood ZIP codes also cover Knightsen, so a letter addressed to Brentwood can go to a home outside the city limits.
A ZIP code does not set your city, school district or tax. Contra Costa County property records show which city you are in.
Brentwood ZIP code questions
What is the main ZIP code for Brentwood?
94513, the ZIP code of the main Brentwood post office at 18 Oak St.
What county is Brentwood in?
Contra Costa County.
ZIP codes for towns near Brentwood
More towns near Brentwood: Livermore, Walnut Creek, Dublin, Pleasant Hill, Tracy, Pleasanton, Martinez, Stockton, Lathrop.
Sources and last checked
USPS ZIP Locale Detail (October 1, 2026), GeoNames (CC BY 4.0), U.S. Census Bureau, HUD-USPS crosswalk.
Checked October 20, 2026. Sources · How we build our lists · Corrections