ZIP Code 59436

59436 is one of Montana's ZIP codes, delivering to addresses in Fairfield, Teton County.

City: Fairfield
County: Teton County
State: Montana
Prefix: 594xx

Where this code sits

59436 is part of the 594xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Fairfield.

Fairfield Montana ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 59436 delivers to without sharing its boundary.

406 Area code 406

ZIP codes nearest 59436

The ZIP codes whose reference points sit closest to 59436.
ZIP code	Distance	Delivers to
ZIP code 59477	9.8 mi	Simms, MT
ZIP code 59443	12 mi	Fort Shaw, MT
ZIP code 59468	14 mi	Power, MT
ZIP code 59483	16 mi	Sun River, MT
ZIP code 59422	18 mi	Choteau, MT
ZIP code 59487	20 mi	Vaughn, MT
ZIP code 59410	21 mi	Augusta, MT
ZIP code 59433	22 mi	Dutton, 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 59436, plotted from its record coordinates.

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

Scope ZIP code 59436. 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.