Atwater, CA ZIP Code
Atwater, California has one ZIP code: .
Mail addressed to Atwater covers nearby places too.
Where the 95301 ZIP code reaches
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Dashed line: Atwater city limits.
Map: Census Bureau ZIP Code Tabulation Areas (2020) and place limits (2024).
Check an address in Atwater
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 Atwater when you live outside it
Atwater ZIP codes also cover McSwain, so a letter addressed to Atwater can go to a home outside the city limits.
A ZIP code does not set your city, school district or tax. Merced County property records show which city you are in.
Atwater ZIP code questions
What is the main ZIP code for Atwater?
95301, the ZIP code of the main Atwater post office at 1599 Broadway Ave.
What county is Atwater in?
Merced County.
ZIP codes for towns near Atwater
More towns near Atwater: Manteca, Lathrop, Tracy, Hollister, Stockton, Fresno, Gilroy, Morgan Hill, Clovis.
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