Find the last 4 digits (ZIP+4) for an address in 91770

ZIP 91770, Rosemead, CA is filled in. Just type the street address.

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ZIP Code 91770 – Rosemead, CA

Rosemead, California · Los Angeles County · Pacific time

ZIP code91770
CityRosemead
StateCalifornia
CountyLos Angeles County
Population58,382
Time zonePacific · local time
ZIP typeStandard (has a Census ZCTA area)
Land area6.52 sq mi
Center (lat, long)34.0651, -118.0828

Area codes in this area

323213738626

These are the area codes that most often serve ZIP 91770 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.

Map

Nearby ZIP codes

91771 Rosemead · 1.2 mi91772 Rosemead · 1.2 mi91776 San Gabriel · 1.8 mi91755 Monterey Park · 2.1 mi91733 South El Monte · 2.1 mi91756 Monterey Park · 2.3 mi91731 El Monte · 2.4 mi91778 San Gabriel · 2.5 mi

About ZIP 91770

ZIP code 91770 is assigned to Rosemead, California. It lies in Los Angeles County. Its Census area covers about 6.52 square miles of land. The closest neighboring ZIP is 91771 (Rosemead), about 1.2 miles away.

Every address in 91770 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.

Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources