ZIP Code 91328

91328 is one of California's ZIP codes, delivering to addresses in Northridge, Los Angeles County.

City: Northridge
County: Los Angeles County
State: California
Prefix: 913xx

Where this code sits

91328 is part of the 913xx range, the group of codes handled by one mail processing centre. Northridge is served by 6 ZIP codes in total.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 91328 delivers to without sharing its boundary.

ZIP codes nearest 91328

The ZIP codes whose reference points sit closest to 91328.
ZIP code	Distance	Delivers to
ZIP code 91327	0.0 mi	Northridge, CA
ZIP code 91329	0.0 mi	Northridge, CA
ZIP code 91330	0.0 mi	Northridge, CA
ZIP code 91324	0.8 mi	Northridge, CA
ZIP code 91325	1.1 mi	Northridge, CA
ZIP code 91337	1.9 mi	Reseda, CA
ZIP code 91335	1.9 mi	Reseda, CA
ZIP code 91396	2.3 mi	Winnetka, 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 91328, plotted from its record coordinates.

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

Scope ZIP code 91328. 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.