ZIP Code 78042

78042 is one of Texas's ZIP codes, delivering to addresses in Laredo, Webb County.

City: Laredo
County: Webb County
State: Texas
Prefix: 780xx

Where this code sits

78042 is part of the 780xx range, the group of codes handled by one mail processing centre. Laredo is served by 7 ZIP codes in total; the full list, with the county each falls in, is on the Laredo page.

Laredo Texas ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 78042 delivers to without sharing its boundary.

956 Area code 956

ZIP codes nearest 78042

The ZIP codes whose reference points sit closest to 78042.
ZIP code	Distance	Delivers to
ZIP code 78041	1.0 mi	Laredo, TX
ZIP code 78040	3.7 mi	Laredo, TX
ZIP code 78045	8.6 mi	Laredo, TX
ZIP code 78046	11 mi	Laredo, TX
ZIP code 78044	14 mi	Laredo, TX
ZIP code 78043	16 mi	Laredo, TX
ZIP code 78369	30 mi	Mirando City, TX
ZIP code 78371	33 mi	Oilton, TX

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 78042, plotted from its record coordinates.

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

Scope ZIP code 78042. 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.