ZIP Code 59034

59034 is one of Montana's ZIP codes, delivering to addresses in Hardin, Big Horn County.

City: Hardin
County: Big Horn County
State: Montana
Prefix: 590xx

Where this code sits

59034 is part of the 590xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Hardin.

Hardin Montana ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 59034 delivers to without sharing its boundary.

406 Area code 406

ZIP codes nearest 59034

The ZIP codes whose reference points sit closest to 59034.
ZIP code	Distance	Delivers to
ZIP code 59022	9.9 mi	Crow Agency, MT
ZIP code 59031	17 mi	Garryowen, MT
ZIP code 59064	22 mi	Pompeys Pillar, MT
ZIP code 59010	22 mi	Bighorn, MT
ZIP code 59024	26 mi	Custer, MT
ZIP code 59075	28 mi	Saint Xavier, MT
ZIP code 59006	29 mi	Ballantine, MT
ZIP code 59088	31 mi	Worden, 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 59034, plotted from its record coordinates.

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

Scope ZIP code 59034. 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.