Find the last 4 digits (ZIP+4) for an address in 91942

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ZIP Code 91942 – La Mesa, CA

La Mesa, California · San Diego County · Pacific time

ZIP code91942
CityLa Mesa
StateCalifornia
CountySan Diego County
Population41,424
Time zonePacific · local time
ZIP typeStandard (has a Census ZCTA area)
Land area5.77 sq mi
Center (lat, long)32.7773, -117.0213

Area codes in this area

858

These are the area codes that most often serve ZIP 91942 (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

91943 La Mesa · 0.7 mi91944 La Mesa · 0.7 mi91941 La Mesa · 1.9 mi91946 Lemon Grove · 2.5 mi91976 Spring Valley · 2.6 mi91979 Spring Valley · 2.6 mi92119 San Diego · 2.9 mi92182 San Diego · 3.1 mi

About ZIP 91942

ZIP code 91942 is assigned to La Mesa, California. It lies in San Diego County. Its Census area covers about 5.77 square miles of land. The closest neighboring ZIP is 91943 (La Mesa), about 0.7 miles away.

Every address in 91942 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