ZIP Code 78599

78599 is one of Texas's ZIP codes, delivering to addresses in Weslaco, Hidalgo County.

City: Weslaco
County: Hidalgo County
State: Texas
Prefix: 785xx

Where this code sits

78599 is part of the 785xx range, the group of codes handled by one mail processing centre. Weslaco is served by 2 ZIP codes in total; the full list, with the county each falls in, is on the Weslaco page.

Weslaco Texas ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 78599 delivers to without sharing its boundary.

956 Area code 956

ZIP codes nearest 78599

The ZIP codes whose reference points sit closest to 78599.
ZIP code	Distance	Delivers to
ZIP code 78596	0.7 mi	Weslaco, TX
ZIP code 78537	3.9 mi	Donna, TX
ZIP code 78570	4.5 mi	Mercedes, TX
ZIP code 78579	5.2 mi	Progreso, TX
ZIP code 78516	8.1 mi	Alamo, TX
ZIP code 78543	9.5 mi	Elsa, TX
ZIP code 78558	9.7 mi	La Blanca, TX
ZIP code 78559	10 mi	La Feria, 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 78599, plotted from its record coordinates.

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

Scope ZIP code 78599. 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.