Obion County ZIP Codes

Obion County is a county of Tennessee.

ZIP codes: 9
Cities & towns: 8
Area codes: 1
Land area: 545 sq mi

Every ZIP code in Obion County

382xx

The complete list of Obion County, TN ZIP codes with the city each one delivers to.
ZIP code	City
38232	Hornbeak
38240	Obion
38253	Rives
38254	Samburg
38257	South Fulton
38260	Troy
38261	Union City
38271	Woodland Mills
38281	Union 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Obion County codes above are listed without a column we would have to invent.

Cities and towns in Obion County

Area codes covering Obion County

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

731 Area code 731

Where Obion County's ZIP codes sit

Each point is the reference point of one Obion 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 Obion 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.