ZIP Code 78368

78368 is one of Texas's ZIP codes, delivering to addresses in Mathis, San Patricio County.

City: Mathis
County: San Patricio County
State: Texas
Prefix: 783xx

Where this code sits

78368 is part of the 783xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Mathis.

Mathis Texas ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 78368 delivers to without sharing its boundary.

361 Area code 361

ZIP codes nearest 78368

The ZIP codes whose reference points sit closest to 78368.
ZIP code	Distance	Delivers to
ZIP code 78383	5.3 mi	Sandia, TX
ZIP code 78391	7.0 mi	Tynan, TX
ZIP code 78389	11 mi	Skidmore, TX
ZIP code 78352	11 mi	Edroy, TX
ZIP code 78350	14 mi	Dinero, TX
ZIP code 78372	14 mi	Orange Grove, TX
ZIP code 78370	17 mi	Odem, TX
ZIP code 78387	18 mi	Sinton, 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 78368, plotted from its record coordinates.

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

Scope ZIP code 78368. 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.