Plain

City ZIP codes · California

Spring Valley, CA ZIP Codes

4 ZIP codes use the postal name Spring Valley, California (Census 2020 ZCTAs and GeoNames postal codes, October 2026): 2 residential and 2 for PO boxes or a single organization. Median household income runs from $99,657 in 91977 to $113,170 in 91978 (Census Bureau, ACS 2020-2024). Spring Valley's most populous ZIP code is 91977, with 61,064 people (ACS 2020-2024); 34% of its land is in the city of Spring Valley.

  • ACS2020-24
  • Census2020
  • GeoNames2026

Where are Spring Valley's ZIP codes?

91977: $100k median household income91978: $113k median household income919789197791977: $100k median household income91978: $113k median household income919789197791977: $100k median household income91978: $113k median household income9197891977
The 2 residential ZIP codes named Spring Valley, shaded by median household income in national fifths (ACS 2020-2024). Select a ZIP to open it. <$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are Spring Valley's ZIP codes?

The highest median household income is in 91978 ($113,170), the lowest in 91977 ($99,657). Home values run from $637,200 in 91978 to $665,600 in 91977.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013, B25077, B01003).

All 2 residential ZIP codes of Spring Valley

Residential ZIP codes with the postal name Spring Valley, CA, largest first (ACS 2020-2024); sort by any column
County
91977 San Diego County 61,064 6,157 $100k $666k
91978 San Diego County 10,014 839 $113k $637k

Download the 4 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; 2023 Gazetteer land areas (2020 ZCTAs); town names from simplemaps US ZIP Codes (CC BY 4.0) and GeoNames (CC BY 4.0).

PO Box and single-organization ZIP codes in Spring Valley

2 ZIP codes named Spring Valley have no residential delivery area: post office boxes, or one organization (a large employer, an agency, a university) with its own code. The Census Bureau publishes no figures for them.

Spring Valley, CA: ZIP codes without a residential area, for PO boxes or one organization (GeoNames postal codes; USPS does not publish openly which is which)
ZIPCounty
91976San Diego County
91979San Diego County

Source: GeoNames postal codes (CC BY 4.0); a ZIP code with no Census ZCTA has no residential delivery area.

Which counties do Spring Valley's ZIP codes reach?

Spring Valley's residential ZIP codes lie in San Diego County.

Which places do Spring Valley's ZIP codes cover?

A postal name is not a city limit. By the Census Bureau's places, Spring Valley's residential ZIP codes cover Spring Valley itself and 3 other places, each listed with the ZIP codes that have at least 5% of their land in it or hold most of the place:

  • Casa de Oro-Mount Helix census-designated 91977
  • Jamul census-designated 91978
  • La Presa census-designated 91977

Source: U.S. Census Bureau, 2020 ZCTA-to-place relationship file (shares of land).

Which first three digits do Spring Valley's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Spring Valley starts with 919.

Three-digit prefixes of Spring Valley's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Spring Valley's
PrefixSectional centerHereAll codes
919 San Diego, CA (SCF 920) 4 38

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.