ZIP Code 91948

91948 is one of California's ZIP codes, delivering to addresses in Mount Laguna, San Diego County.

City: Mount Laguna
County: San Diego County
State: California
Prefix: 919xx

Where this code sits

91948 is part of the 919xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Mount Laguna.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 91948 delivers to without sharing its boundary.

ZIP codes nearest 91948

The ZIP codes whose reference points sit closest to 91948.
ZIP code	Distance	Delivers to
ZIP code 91962	5.8 mi	Pine Valley, CA
ZIP code 91931	8.1 mi	Guatay, CA
ZIP code 91916	11 mi	Descanso, CA
ZIP code 91905	15 mi	Boulevard, CA
ZIP code 91906	15 mi	Campo, CA
ZIP code 92036	15 mi	Julian, CA
ZIP code 91901	20 mi	Alpine, CA
ZIP code 91963	20 mi	Potrero, 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 91948, plotted from its record coordinates.

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

Scope ZIP code 91948. 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.