Gillespie County ZIP Codes

Gillespie County is a county of Texas.

ZIP codes: 5
Cities & towns: 5
Area codes: 1
Land area: 1,058 sq mi

Every ZIP code in Gillespie County

786xx

The complete list of Gillespie County, TX ZIP codes with the city each one delivers to.
ZIP code	City
78618	Doss
78624	Fredericksburg
78631	Harper
78671	Stonewall
78675	Willow City

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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

Cities and towns in Gillespie County

A further 4 places in Gillespie 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 Gillespie County

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

830 Area code 830

Where Gillespie County's ZIP codes sit

Each point is the reference point of one Gillespie 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 Gillespie 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.