Sebastian County ZIP Codes

Sebastian County is a county of Arkansas.

ZIP codes: 20
Cities & towns: 8
Area codes: 1
Land area: 531 sq mi

Every ZIP code in Sebastian County

729xx

The complete list of Sebastian County, AR ZIP codes with the city each one delivers to.
ZIP code	City
72901	Fort Smith
72902	Fort Smith
72903	Fort Smith
72904	Fort Smith
72905	Fort Smith
72906	Fort Smith
72908	Fort Smith
72913	Fort Smith
72914	Fort Smith
72916	Fort Smith
72917	Fort Smith
72918	Fort Smith
72919	Fort Smith
72923	Barling
72936	Greenwood
72937	Hackett
72938	Hartford
72940	Huntington
72941	Lavaca
72945	Midland

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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

Cities and towns in Sebastian County

Area codes covering Sebastian County

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

479 Area code 479

Where Sebastian County's ZIP codes sit

Each point is the reference point of one Sebastian 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 Sebastian 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.