ZIP Code 90731

90731 is one of California's ZIP codes, delivering to addresses in San Pedro, Los Angeles County.

City: San Pedro
County: Los Angeles County
State: California
Prefix: 907xx

Where this code sits

90731 is part of the 907xx range, the group of codes handled by one mail processing centre. San Pedro is served by 4 ZIP codes in total.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 90731 delivers to without sharing its boundary.

ZIP codes nearest 90731

The ZIP codes whose reference points sit closest to 90731.
ZIP code	Distance	Delivers to
ZIP code 90732	1.3 mi	San Pedro, CA
ZIP code 90748	3.6 mi	Wilmington, CA
ZIP code 90073	3.7 mi	Los Angeles, CA
ZIP code 90079	3.7 mi	Los Angeles, CA
ZIP code 90089	3.7 mi	Los Angeles, CA
ZIP code 90095	3.7 mi	Los Angeles, CA
ZIP code 90224	3.7 mi	Compton, CA
ZIP code 90267	3.7 mi	Manhattan Beach, 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 90731, plotted from its record coordinates.

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

Scope ZIP code 90731. 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.