Dunn County ZIP Codes

Dunn County is a county of North Dakota.

ZIP codes: 6
Cities & towns: 6
Area codes: 1
Land area: 2,008 sq mi

Every ZIP code in Dunn County

586xx

The complete list of Dunn County, ND ZIP codes with the city each one delivers to.
ZIP code	City
58625	Dodge
58626	Dunn Center
58636	Halliday
58640	Killdeer
58642	Manning
58644	Marshall

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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

Cities and towns in Dunn County

A further 2 places in Dunn County appear in the postal source without a page of its own; their codes are in the table above and each one links to its own page.

Area codes covering Dunn County

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

701 Area code 701

Where Dunn County's ZIP codes sit

Each point is the reference point of one Dunn 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 Dunn 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.