ZIP Code 78118

78118 is one of Texas's ZIP codes, delivering to addresses in Karnes City, Karnes County.

City: Karnes City
County: Karnes County
State: Texas
Prefix: 781xx

Where this code sits

78118 is part of the 781xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Karnes City.

Karnes City Texas ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 78118 delivers to without sharing its boundary.

830 Area code 830

ZIP codes nearest 78118

The ZIP codes whose reference points sit closest to 78118.
ZIP code	Distance	Delivers to
ZIP code 78144	5.1 mi	Panna Maria, TX
ZIP code 78117	5.7 mi	Hobson, TX
ZIP code 78119	6.6 mi	Kenedy, TX
ZIP code 78113	9.5 mi	Falls City, TX
ZIP code 78151	12 mi	Runge, TX
ZIP code 78116	13 mi	Gillett, TX
ZIP code 78111	15 mi	Ecleto, TX
ZIP code 78147	16 mi	Poth, 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 78118, plotted from its record coordinates.

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

Scope ZIP code 78118. 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.