ZIP Code 59087

59087 is one of Montana's ZIP codes, delivering to addresses in Winnett, Petroleum County.

City: Winnett
County: Petroleum County
State: Montana
Prefix: 590xx

Where this code sits

59087 is part of the 590xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Winnett.

Winnett Montana ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 59087 delivers to without sharing its boundary.

406 Area code 406

ZIP codes nearest 59087

The ZIP codes whose reference points sit closest to 59087.
ZIP code	Distance	Delivers to
ZIP code 59084	15 mi	Teigen, MT
ZIP code 59032	25 mi	Grass Range, MT
ZIP code 59058	25 mi	Mosby, MT
ZIP code 59059	31 mi	Musselshell, MT
ZIP code 59054	32 mi	Melstone, MT
ZIP code 59073	36 mi	Roundup, MT
ZIP code 59072	38 mi	Roundup, MT
ZIP code 59471	39 mi	Roy, 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 59087, plotted from its record coordinates.

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

Scope ZIP code 59087. 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.