ZIP Code 91342

91342 is one of California's ZIP codes, delivering to addresses in Sylmar, Los Angeles County.

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

Where this code sits

91342 is part of the 913xx range, the group of codes handled by one mail processing centre. Sylmar 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 91342 delivers to without sharing its boundary.

ZIP codes nearest 91342

The ZIP codes whose reference points sit closest to 91342.
ZIP code	Distance	Delivers to
ZIP code 91392	1.0 mi	Sylmar, CA
ZIP code 91340	1.2 mi	San Fernando, CA
ZIP code 91341	1.7 mi	San Fernando, CA
ZIP code 91333	3.0 mi	Pacoima, CA
ZIP code 91334	3.0 mi	Pacoima, CA
ZIP code 91345	3.4 mi	Mission Hills, CA
ZIP code 91331	3.5 mi	Pacoima, CA
ZIP code 91346	3.9 mi	Mission Hills, 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 91342, plotted from its record coordinates.

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

Scope ZIP code 91342. 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.