ZIP Code 92831

92831 is one of California's ZIP codes, delivering to addresses in Fullerton, Orange County.

City: Fullerton
County: Orange County
State: California
Prefix: 928xx

Where this code sits

92831 is part of the 928xx range, the group of codes handled by one mail processing centre. Fullerton is served by 8 ZIP codes in total; the full list, with the county each falls in, is on the Fullerton page.

Fullerton California ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 92831 delivers to without sharing its boundary.

ZIP codes nearest 92831

The ZIP codes whose reference points sit closest to 92831.
ZIP code	Distance	Delivers to
ZIP code 92834	0.7 mi	Fullerton, CA
ZIP code 92836	1.0 mi	Fullerton, CA
ZIP code 92835	1.1 mi	Fullerton, CA
ZIP code 92838	2.1 mi	Fullerton, CA
ZIP code 92822	2.2 mi	Brea, CA
ZIP code 92871	2.3 mi	Placentia, CA
ZIP code 92832	2.3 mi	Fullerton, CA
ZIP code 92870	2.5 mi	Placentia, 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 92831, plotted from its record coordinates.

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

Scope ZIP code 92831. 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.