Missoula County ZIP Codes

Missoula County is a county of Montana.

ZIP codes: 16
Cities & towns: 9
Area codes: 1
Land area: 2,593 sq mi

Every ZIP code in Missoula County

598xx

The complete list of Missoula County, MT ZIP codes with the city each one delivers to.
ZIP code	City
59801	Missoula
59802	Missoula
59803	Missoula
59804	Missoula
59806	Missoula
59807	Missoula
59808	Missoula
59812	Missoula
59823	Bonner
59825	Clinton
59826	Condon
59834	Frenchtown
59846	Huson
59847	Lolo
59851	Milltown
59868	Seeley Lake

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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

Cities and towns in Missoula County

A further 8 places in Missoula 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 Missoula 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 Missoula County's ZIP codes sit

Each point is the reference point of one Missoula 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 Missoula 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.