Every ZIP code in Stillwater County

590xx

The complete list of Stillwater County, MT ZIP codes with the city each one delivers to.
ZIP code	City
59001	Absarokee
59019	Columbus
59028	Fishtail
59057	Molt
59061	Nye
59063	Park City
59067	Rapelje
59069	Reed Point

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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

Cities and towns in Stillwater County

A further 7 places in Stillwater 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 Stillwater County

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

Where Stillwater County's ZIP codes sit

Each point is the reference point of one Stillwater 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 Stillwater 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.