Rosemead, CA ZIP Codes
Rosemead, California has 3 ZIP codes: for street addresses and and for single organizations.
Mail addressed to Rosemead covers nearby places too.
Where the 91770 ZIP code reaches
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91771 and 91772 have no area on the map: they are PO box or single-organization ZIP codes. Dashed line: Rosemead city limits.
Map: Census Bureau ZIP Code Tabulation Areas (2020) and place limits (2024).
Check an address in Rosemead
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?
Rosemead PO box and business ZIP codes
| ZIP | Type and post office or station |
|---|---|
| 91770 | street delivery Rosemead |
| 91771 | one organization Rosemead |
| 91772 | one organization Rosemead |
Why your mail may say Rosemead when you live outside it
Rosemead ZIP codes also cover South San Gabriel, so a letter addressed to Rosemead can go to a home outside the city limits.
A ZIP code does not set your city, school district or tax. Los Angeles County property records show which city you are in.
Rosemead ZIP code questions
What is the main ZIP code for Rosemead?
91770, the ZIP code of the main Rosemead post office at 8845 Valley Blvd.
What county is Rosemead in?
Los Angeles County.
ZIP codes for towns near Rosemead
More towns near Rosemead: Arcadia, Pico Rivera, East Los Angeles, Baldwin Park, Pasadena, La Puente, Whittier, Hacienda Heights, Bell.
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