ZIP Code 92003

92003 is one of California's ZIP codes, delivering to addresses in Bonsall, San Diego County.

City: Bonsall
County: San Diego County
State: California
Prefix: 920xx

Where this code sits

92003 is part of the 920xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Bonsall.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 92003 delivers to without sharing its boundary.

ZIP codes nearest 92003

The ZIP codes whose reference points sit closest to 92003.
ZIP code	Distance	Delivers to
ZIP code 92028	5.7 mi	Fallbrook, CA
ZIP code 92084	5.9 mi	Vista, CA
ZIP code 92088	6.7 mi	Fallbrook, CA
ZIP code 92085	7.2 mi	Vista, CA
ZIP code 92083	7.5 mi	Vista, CA
ZIP code 92057	7.5 mi	Oceanside, CA
ZIP code 92056	8.6 mi	Oceanside, CA
ZIP code 92068	8.8 mi	San Luis Rey, 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 92003, plotted from its record coordinates.

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

Scope ZIP code 92003. 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.