Mountrail County ZIP Codes

Mountrail County is a county of North Dakota.

ZIP codes: 7
Cities & towns: 7
Area codes: 1
Land area: 1,825 sq mi

Every ZIP code in Mountrail County

587xx

The complete list of Mountrail County, ND ZIP codes with the city each one delivers to.
ZIP code	City
58763	New Town
58769	Palermo
58770	Parshall
58771	Plaza
58776	Ross
58784	Stanley
58794	White Earth

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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

Cities and towns in Mountrail County

Area codes covering Mountrail 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 Mountrail County's ZIP codes sit

Each point is the reference point of one Mountrail 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 Mountrail 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.