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City ZIP codes · California

West Covina, CA ZIP Codes

4 ZIP codes use the postal name West Covina, California (Census 2020 ZCTAs and GeoNames postal codes, October 2026): 3 residential and 1 for PO boxes or a single organization. Median household income runs from $94,817 in 91792 to $102,927 in 91790 (Census Bureau, ACS 2020-2024). West Covina's most populous ZIP code is 91790, with 44,710 people (ACS 2020-2024); 100% of its land is in the city of West Covina.

  • ACS2020-24
  • Census2020
  • GeoNames2026

Where are West Covina's ZIP codes?

91790: $103k median household income91791: $102k median household income91792: $95k median household income91791917929179091790: $103k median household income91791: $102k median household income91792: $95k median household income91791917929179091790: $103k median household income91791: $102k median household income91792: $95k median household income917919179291790
The 3 residential ZIP codes named West Covina, 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 West Covina's ZIP codes?

The highest median household income is in 91790 ($102,927), the lowest in 91792 ($94,817). Home values run from $696,200 in 91792 to $843,600 in 91791.

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

All 3 residential ZIP codes of West Covina

Residential ZIP codes with the postal name West Covina, CA, largest first (ACS 2020-2024); sort by any column
County
91790 Los Angeles County 44,710 7,768 $103k $771k
91791 Los Angeles County 33,028 4,973 $102k $844k
91792 Los Angeles County 30,629 7,972 $95k $696k

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 West Covina

1 ZIP code named West Covina has 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.

West Covina, 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
91793Los Angeles County

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

Which counties do West Covina's ZIP codes reach?

West Covina's residential ZIP codes lie in Los Angeles County.

Which first three digits do West Covina'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 West Covina starts with 917.

Three-digit prefixes of West Covina'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 West Covina's
PrefixSectional centerHereAll codes
917 Industry, CA (SCF 917) 4 64

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