ZIP Code 90242

90242 is one of California's ZIP codes, delivering to addresses in Downey, Los Angeles County.

City: Downey
County: Los Angeles County
State: California
Prefix: 902xx

Where this code sits

90242 is part of the 902xx range, the group of codes handled by one mail processing centre. Downey is served by 4 ZIP codes in total; the full list, with the county each falls in, is on the Downey page.

Downey California ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 90242 delivers to without sharing its boundary.

562 Area code 562

ZIP codes nearest 90242

The ZIP codes whose reference points sit closest to 90242.
ZIP code	Distance	Delivers to
ZIP code 90239	1.3 mi	Downey, CA
ZIP code 90241	1.5 mi	Downey, CA
ZIP code 90723	2.2 mi	Paramount, CA
ZIP code 90706	2.5 mi	Bellflower, CA
ZIP code 90240	2.8 mi	Downey, CA
ZIP code 90707	3.1 mi	Bellflower, CA
ZIP code 90201	3.1 mi	Bell Gardens, CA
ZIP code 90650	3.5 mi	Norwalk, 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 90242, plotted from its record coordinates.

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

Scope ZIP code 90242. 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.