Clarke County ZIP Codes

Clarke County is a county of Iowa.

ZIP codes: 3
Cities & towns: 3
Area codes: 1
Land area: 431 sq mi

Every ZIP code in Clarke County

501xx–502xx

The complete list of Clarke County, IA ZIP codes with the city each one delivers to.
ZIP code	City
50174	Murray
50213	Osceola
50275	Woodburn

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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

Cities and towns in Clarke County

Area codes covering Clarke County

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

641 Area code 641

Where Clarke County's ZIP codes sit

Each point is the reference point of one Clarke 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 Clarke 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.