ZIP Code 59820

59820 is one of Montana's ZIP codes, delivering to addresses in Alberton, Mineral County.

City: Alberton
County: Mineral County
State: Montana
Prefix: 598xx

Where this code sits

59820 is part of the 598xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Alberton.

Alberton Montana ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 59820 delivers to without sharing its boundary.

406 Area code 406

ZIP codes nearest 59820

The ZIP codes whose reference points sit closest to 59820.
ZIP code	Distance	Delivers to
ZIP code 59846	6.8 mi	Huson, MT
ZIP code 59834	12 mi	Frenchtown, MT
ZIP code 59804	18 mi	Missoula, MT
ZIP code 59808	20 mi	Missoula, MT
ZIP code 59872	23 mi	Superior, MT
ZIP code 59801	24 mi	Missoula, MT
ZIP code 59847	24 mi	Lolo, MT
ZIP code 59802	24 mi	Missoula, 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 59820, plotted from its record coordinates.

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

Scope ZIP code 59820. 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.