Petaluma, CA ZIP Codes
Petaluma, California has 6 ZIP codes: 3 for street addresses (, and ) and 3 for PO boxes (, and ).
Your street decides which one you use.
Which Petaluma ZIP code is my address in?
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?
Petaluma ZIP code map
Tap or point to an area to see its ZIP code.Full-size map
94953, 94955, 94975 and 94999 have no area on the Census map. Dashed line: Petaluma city limits.
Map: Census Bureau ZIP Code Tabulation Areas (2020) and place limits (2024).
All Petaluma ZIP codes by type
| ZIP | Type and post office or station |
|---|---|
| 94952 | street delivery Casa Grande Annex |
| 94953 | PO boxes at the Petaluma post office Petaluma |
| 94954 | street delivery Casa Grande Annex |
| 94955 | PO boxes at the Casa Grande Annex post office Casa Grande Annex |
| 94975 | PO boxes at the North Bay P&Dc Finance post office North Bay P&Dc Finance |
| 94999 | street delivery North Bay |
Why your mail may say Petaluma when you live outside it
Petaluma ZIP codes also cover Bloomfield, Valley Ford and Petaluma Center, so a letter addressed to Petaluma can go to a home outside the city limits.
A ZIP code does not set your city, school district or tax. Sonoma County property records show which city you are in.
Petaluma ZIP code questions
What is the main ZIP code for Petaluma?
94952, the ZIP code of the main Casa Grande Annex post office at 1601 Corporate Cir.
Which Petaluma ZIP codes are for PO boxes only?
94953, 94955 and 94975. Mail to them goes to boxes at the post office, not to street addresses.
What county is Petaluma in?
Sonoma County.
ZIP codes for towns near Petaluma
More towns near Petaluma: Richmond, San Pablo, Berkeley, Fairfield, Martinez, Pleasant Hill, Vacaville, Daly City, Concord.
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