ZIP Code 92318

92318 is one of California's ZIP codes, delivering to addresses in Bryn Mawr, San Bernardino County.

City: Bryn Mawr
County: San Bernardino County
State: California
Prefix: 923xx

Where this code sits

92318 is part of the 923xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Bryn Mawr.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 92318 delivers to without sharing its boundary.

ZIP codes nearest 92318

The ZIP codes whose reference points sit closest to 92318.
ZIP code	Distance	Delivers to
ZIP code 92354	1.2 mi	Loma Linda, CA
ZIP code 92350	1.7 mi	Loma Linda, CA
ZIP code 92357	1.7 mi	Loma Linda, CA
ZIP code 92375	2.8 mi	Redlands, CA
ZIP code 92373	3.0 mi	Redlands, CA
ZIP code 92408	3.3 mi	San Bernardino, CA
ZIP code 92324	3.4 mi	Colton, CA
ZIP code 92374	3.8 mi	Redlands, 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 92318, plotted from its record coordinates.

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

Scope ZIP code 92318. 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.