ZIP Code 91905

91905 is one of California's ZIP codes, delivering to addresses in Boulevard, San Diego County.

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

Where this code sits

91905 is part of the 919xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Boulevard.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 91905 delivers to without sharing its boundary.

ZIP codes nearest 91905

The ZIP codes whose reference points sit closest to 91905.
ZIP code	Distance	Delivers to
ZIP code 91934	8.0 mi	Jacumba, CA
ZIP code 91906	9.9 mi	Campo, CA
ZIP code 91948	15 mi	Mount Laguna, CA
ZIP code 91962	16 mi	Pine Valley, CA
ZIP code 91963	17 mi	Potrero, CA
ZIP code 91980	18 mi	Tecate, CA
ZIP code 91931	19 mi	Guatay, CA
ZIP code 91987	19 mi	Tecate, 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 91905, plotted from its record coordinates.

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

Scope ZIP code 91905. 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.