ZIP Code 91906

91906 is one of California's ZIP codes, delivering to addresses in Campo, San Diego County.

City: Campo
County: San Diego County
State: California
Prefix: 919xx

Where this code sits

91906 is part of the 919xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Campo.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 91906 delivers to without sharing its boundary.

ZIP codes nearest 91906

The ZIP codes whose reference points sit closest to 91906.
ZIP code	Distance	Delivers to
ZIP code 91963	7.1 mi	Potrero, CA
ZIP code 91980	9.0 mi	Tecate, CA
ZIP code 91987	9.8 mi	Tecate, CA
ZIP code 91905	9.9 mi	Boulevard, CA
ZIP code 91962	12 mi	Pine Valley, CA
ZIP code 91931	14 mi	Guatay, CA
ZIP code 91917	14 mi	Dulzura, CA
ZIP code 91948	15 mi	Mount Laguna, 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 91906, plotted from its record coordinates.

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

Scope ZIP code 91906. 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.