ZIP Code 91773

91773 is one of California's ZIP codes, delivering to addresses in San Dimas, Los Angeles County.

City: San Dimas
County: Los Angeles County
State: California
Prefix: 917xx

Where this code sits

91773 is part of the 917xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to San Dimas.

San Dimas California ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 91773 delivers to without sharing its boundary.

ZIP codes nearest 91773

The ZIP codes whose reference points sit closest to 91773.
ZIP code	Distance	Delivers to
ZIP code 91724	2.3 mi	Covina, CA
ZIP code 91750	2.8 mi	La Verne, CA
ZIP code 91740	2.9 mi	Glendora, CA
ZIP code 91768	3.4 mi	Pomona, CA
ZIP code 91741	3.9 mi	Glendora, CA
ZIP code 91723	4.0 mi	Covina, CA
ZIP code 91767	4.8 mi	Pomona, CA
ZIP code 91769	4.9 mi	Pomona, 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 91773, plotted from its record coordinates.

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

Scope ZIP code 91773. 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.