ZIP Code 92143

92143 is one of California's ZIP codes, delivering to addresses in San Ysidro, San Diego County.

City: San Ysidro
County: San Diego County
State: California
Prefix: 921xx

Where this code sits

92143 is part of the 921xx range, the group of codes handled by one mail processing centre. San Ysidro is served by 2 ZIP codes in total.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 92143 delivers to without sharing its boundary.

ZIP codes nearest 92143

The ZIP codes whose reference points sit closest to 92143.
ZIP code	Distance	Delivers to
ZIP code 92066	4.2 mi	Ranchita, CA
ZIP code 92086	6.2 mi	Warner Springs, CA
ZIP code 92070	11 mi	Santa Ysabel, CA
ZIP code 92004	13 mi	Borrego Springs, CA
ZIP code 92036	14 mi	Julian, CA
ZIP code 92060	19 mi	Palomar Mountain, CA
ZIP code 92536	19 mi	Aguanga, CA
ZIP code 92065	23 mi	Ramona, 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 92143, plotted from its record coordinates.

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

Scope ZIP code 92143. 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.