Sioux County ZIP Codes

Sioux County is a county of Nebraska.

ZIP codes: 1
Cities & towns: 1
Area codes: 1
Land area: 2,067 sq mi

Every ZIP code in Sioux County

693xx

The complete list of Sioux County, NE ZIP codes with the city each one delivers to.
ZIP code	City
69346	Harrison

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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

Cities and towns in Sioux County

Area codes covering Sioux County

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

308 Area code 308

Scope every ZIP code recorded in Sioux 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.