Fremont, CA ZIP Codes
Fremont, California has 5 ZIP codes: 4 for street addresses (, , and ) and 1 for PO boxes ().
Your street decides which one you use.
Which Fremont 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?
Fremont ZIP code map
Tap or point to an area to see its ZIP code.Full-size map
94537 has no area on the map: it is a PO box or single-organization ZIP code. Dashed line: Fremont city limits.
Map: Census Bureau ZIP Code Tabulation Areas (2020) and place limits (2024).
All Fremont ZIP codes by type
| ZIP | Type and post office or station |
|---|---|
| 94536 | street delivery Fremont |
| 94537 | PO boxes at the Fremont post office Fremont |
| 94538 | street delivery Irvington |
| 94539 | street delivery Mission San Jose |
| 94555 | street delivery Fremont |
ZIP codes from nearby towns that reach into Fremont
- 94560, mailing town Newark, covers 8 percent of Fremont
Why your mail may say Fremont when you live outside it
A letter addressed to Fremont can go to a home outside the city limits, because ZIP areas follow delivery routes, not town lines.
The reverse happens too: parts of Fremont use 94560, which mails under a neighboring town's name.
A ZIP code does not set your city, school district or tax. Alameda County property records show which city you are in.
Fremont ZIP code questions
What is the main ZIP code for Fremont?
94536, the ZIP code of the main Fremont post office at 37010 Dusterberry Way.
Which Fremont ZIP codes are for PO boxes only?
94537. Mail to it goes to boxes at the post office, not to street addresses.
What county is Fremont in?
Alameda County.
ZIP codes for towns near Fremont
More towns near Fremont: Menlo Park, Los Altos, Pleasanton, Hayward, Palo Alto, Cupertino, Campbell, Redwood City, San Jose.
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