Karnes County ZIP Codes

Karnes County is a county of Texas.

ZIP codes: 8
Cities & towns: 8
Area codes: 2
Land area: 748 sq mi

Every ZIP code in Karnes County

781xx

The complete list of Karnes County, TX ZIP codes with the city each one delivers to.
ZIP code	City
78111	Ecleto
78113	Falls City
78116	Gillett
78117	Hobson
78118	Karnes City
78119	Kenedy
78144	Panna Maria
78151	Runge

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Karnes County codes above are listed without a column we would have to invent.

Cities and towns in Karnes County

A further 4 places in Karnes County appear in the postal source without a page of its own; their codes are in the table above and each one links to its own page.

Area codes covering Karnes County

Telephone and postal boundaries are drawn by different bodies, so these codes overlap the county without matching its edges.

Where Karnes County's ZIP codes sit

Each point is the reference point of one Karnes County ZIP code, plotted from its record coordinates. The outline is the convex envelope of those points — a footprint, not a boundary.

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

Scope every ZIP code recorded in Karnes County. Source GeoNames US postal codes (2026-07 postal dump), Census 2024 county Gazetteer (2024 Gazetteer) and geoinfo-dataset (full_dataset) ZIP→NPA (2018 snapshot). Updated 16 July 2026. The outline is a convex envelope of ZIP reference points, not a jurisdiction boundary.