Roosevelt County ZIP Codes

Roosevelt County is a county of Montana.

ZIP codes: 7
Cities & towns: 7
Area codes: 1
Land area: 2,355 sq mi

Every ZIP code in Roosevelt County

592xx

The complete list of Roosevelt County, MT ZIP codes with the city each one delivers to.
ZIP code	City
59201	Wolf Point
59212	Bainville
59213	Brockton
59218	Culbertson
59226	Froid
59242	Homestead
59255	Poplar

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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

Cities and towns in Roosevelt County

A further 2 places in Roosevelt 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 Roosevelt County

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

406 Area code 406

Where Roosevelt County's ZIP codes sit

Each point is the reference point of one Roosevelt 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 Roosevelt 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.