Darke County ZIP Codes

Darke County is a county of Ohio.

ZIP codes: 15
Cities & towns: 15
Area codes: 4
Land area: 598 sq mi

Every ZIP code in Darke County

453xx

The complete list of Darke County, OH ZIP codes with the city each one delivers to.
ZIP code	City
45303	Ansonia
45304	Arcanum
45328	Gettysburg
45331	Greenville
45332	Hollansburg
45346	New Madison
45348	New Weston
45350	North Star
45351	Osgood
45352	Palestine
45358	Pitsburg
45362	Rossburg
45380	Versailles
45388	Yorkshire
45390	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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Darke County codes above are listed without a column we would have to invent.

Cities and towns in Darke County

Area codes covering Darke County

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

Where Darke County's ZIP codes sit

Each point is the reference point of one Darke 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 Darke 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.