Every ZIP code in Faulk County

574xx

The complete list of Faulk County, SD ZIP codes with the city each one delivers to.
ZIP code	City
57435	Cresbard
57438	Faulkton
57466	Onaka
57467	Orient
57470	Rockham
57473	Seneca

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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

Cities and towns in Faulk County

Area codes covering Faulk County

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

Where Faulk County's ZIP codes sit

Each point is the reference point of one Faulk 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 Faulk 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.