Find the last 4 digits (ZIP+4) for an address in 91979

ZIP 91979, Spring Valley, CA is filled in. Just type the street address.

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ZIP Code 91979 – Spring Valley, CA

Spring Valley, California · San Diego County · Pacific time

ZIP code91979
CitySpring Valley
StateCalifornia
CountySan Diego County
PopulationNot published (no Census ZIP area)
Time zonePacific · local time
ZIP typePO box or unique ZIP (no Census area)
Center (lat, long)32.7448, -116.9989

Area codes in this area

858

These are the area codes that most often serve ZIP 91979 (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

91976 Spring Valley · 0 mi91941 La Mesa · 1 mi91977 Spring Valley · 1.3 mi91946 Lemon Grove · 1.9 mi91943 La Mesa · 2.1 mi91944 La Mesa · 2.1 mi91945 Lemon Grove · 2.2 mi91942 La Mesa · 2.6 mi

About ZIP 91979

ZIP code 91979 is assigned to Spring Valley, California. It lies in San Diego County. It is a PO-box-only or single-address ZIP, so the Census Bureau does not publish an area for it; the location shown is approximate. The closest neighboring ZIP is 91976 (Spring Valley), about 0 miles away.

Every address in 91979 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