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City ZIP codes · California

Fontana, CA ZIP Codes

5 ZIP codes use the postal name Fontana, California (Census 2020 ZCTAs and GeoNames postal codes, October 2026): 3 residential and 2 for PO boxes or a single organization. Median household income runs from $77,949 in 92335 to $123,363 in 92336, 1.6 times as much (Census Bureau, ACS 2020-2024). Fontana's most populous ZIP code is 92336, with 105,517 people (ACS 2020-2024); 96% of its land is in the city of Fontana.

  • ACS2020-24
  • Census2020
  • GeoNames2026

Where are Fontana's ZIP codes?

92335: $78k median household income92336: $123k median household income92337: $108k median household income92336923359233792335: $78k median household income92336: $123k median household income92337: $108k median household income92336923359233792335: $78k median household income92336: $123k median household income92337: $108k median household income923369233592337
The 3 residential ZIP codes named Fontana, 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 Fontana's ZIP codes?

The highest median household income is in 92336 ($123,363), the lowest in 92335 ($77,949). Home values run from $462,400 in 92335 to $627,700 in 92336.

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

All 3 residential ZIP codes of Fontana

Residential ZIP codes with the postal name Fontana, CA, largest first (ACS 2020-2024); sort by any column
County
92336 San Bernardino County 105,517 5,307 $123k $628k
92335 San Bernardino County 97,511 5,586 $78k $462k
92337 San Bernardino County 36,026 2,630 $108k $573k

Download the 5 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 Fontana

2 ZIP codes named Fontana 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.

Fontana, 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
92331Imperial County
92334San Bernardino County

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

Which counties do Fontana's ZIP codes reach?

Fontana's residential ZIP codes lie in San Bernardino County.

Which first three digits do Fontana'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 Fontana starts with 923.

Three-digit prefixes of Fontana'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 Fontana's
PrefixSectional centerHereAll codes
923 Sn Bernardino, CA (SCF 923) 5 74

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