ZIP Code 92337

92337 is one of California's ZIP codes, delivering to addresses in Fontana, San Bernardino County.

City: Fontana
County: San Bernardino County
State: California
Prefix: 923xx

Where this code sits

92337 is part of the 923xx range, the group of codes handled by one mail processing centre. Fontana is served by 5 ZIP codes in total; the full list, with the county each falls in, is on the Fontana page.

Fontana California ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 92337 delivers to without sharing its boundary.

ZIP codes nearest 92337

The ZIP codes whose reference points sit closest to 92337.
ZIP code	Distance	Delivers to
ZIP code 92335	2.2 mi	Fontana, CA
ZIP code 92331	3.0 mi	Fontana, CA
ZIP code 92509	3.5 mi	Riverside, CA
ZIP code 92334	3.6 mi	Fontana, CA
ZIP code 92316	4.2 mi	Bloomington, CA
ZIP code 91752	4.9 mi	Mira Loma, CA
ZIP code 92336	5.0 mi	Fontana, CA
ZIP code 91743	6.7 mi	Guasti, CA

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.

Each point is the reference point for 92337, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope ZIP code 92337. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.