ZIP Code 91221

91221 is one of California's ZIP codes, delivering to addresses in Glendale, Los Angeles County.

City

Glendale

County

Los Angeles County

State

California

Prefix

912xx

Where this code sits

91221 is part of the 912xx range, the group of codes handled by one mail processing centre. Glendale is served by 14 ZIP codes in total; the full list, with the county each falls in, is on the Glendale page.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 91221 delivers to without sharing its boundary.

ZIP codes nearest 91221

The ZIP codes whose reference points sit closest to 91221.
ZIP code	Distance	Delivers to
ZIP code 91209	0.0 mi	Glendale, CA
ZIP code 91210	0.0 mi	Glendale, CA
ZIP code 91222	0.0 mi	Glendale, CA
ZIP code 91225	0.0 mi	Glendale, CA
ZIP code 91226	0.0 mi	Glendale, CA
ZIP code 91204	0.4 mi	Glendale, CA
ZIP code 91205	0.8 mi	Glendale, CA
ZIP code 91203	0.8 mi	Glendale, 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 91221, plotted from its record coordinates.

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

Scope ZIP code 91221. 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.