ZIP Code 59055

59055 is one of Montana's ZIP codes, delivering to addresses in Melville, Sweet Grass County.

City: Melville
County: Sweet Grass County
State: Montana
Prefix: 590xx

Where this code sits

59055 is part of the 590xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Melville.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 59055 delivers to without sharing its boundary.

406 Area code 406

ZIP codes nearest 59055

The ZIP codes whose reference points sit closest to 59055.
ZIP code	Distance	Delivers to
ZIP code 59011	21 mi	Big Timber, MT
ZIP code 59078	21 mi	Shawmut, MT
ZIP code 59033	24 mi	Greycliff, MT
ZIP code 59036	24 mi	Harlowton, MT
ZIP code 59067	26 mi	Rapelje, MT
ZIP code 59085	26 mi	Two Dot, MT
ZIP code 59074	27 mi	Ryegate, MT
ZIP code 59069	28 mi	Reed Point, MT

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.

Each point is the reference point for 59055, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope ZIP code 59055. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.