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City ZIP codes · California

El Monte, CA ZIP Codes

4 ZIP codes use the postal name El Monte, 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 $62,215 in 91731 to $75,108 in 91732, 1.2 times as much (Census Bureau, ACS 2020-2024). El Monte's most populous ZIP code is 91732, with 57,431 people (ACS 2020-2024); 98% of its land is in the city of El Monte.

  • ACS2020-24
  • Census2020
  • GeoNames2026

Where are El Monte's ZIP codes?

91731: $62k median household income91732: $75k median household income917329173191731: $62k median household income91732: $75k median household income917329173191731: $62k median household income91732: $75k median household income9173291731
The 2 residential ZIP codes named El Monte, 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 El Monte's ZIP codes?

The highest median household income is in 91732 ($75,108), the lowest in 91731 ($62,215). Home values run from $635,600 in 91731 to $644,200 in 91732.

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

All 2 residential ZIP codes of El Monte

Residential ZIP codes with the postal name El Monte, CA, largest first (ACS 2020-2024); sort by any column
County
91732 Los Angeles County 57,431 12,650 $75k $644k
91731 Los Angeles County 27,620 7,278 $62k $636k

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 El Monte

2 ZIP codes named El Monte 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.

El Monte, 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
91734Los Angeles County
91735Los 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 El Monte's ZIP codes reach?

El Monte's residential ZIP codes lie in Los Angeles County.

Which first three digits do El Monte'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 El Monte starts with 917.

Three-digit prefixes of El Monte'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 El Monte'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.