Callahan County ZIP Codes

Callahan County is a county of Texas.

ZIP codes: 4
Cities & towns: 4
Area codes: 2
Land area: 899 sq mi

Every ZIP code in Callahan County

764xx–795xx

The complete list of Callahan County, TX ZIP codes with the city each one delivers to.
ZIP code	City
76443	Cross Plains
76469	Putnam
79504	Baird
79510	Clyde

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Callahan County codes above are listed without a column we would have to invent.

Cities and towns in Callahan County

Area codes covering Callahan County

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

Where Callahan County's ZIP codes sit

Each point is the reference point of one Callahan 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 Callahan 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.