ZIP Code 59858

59858 is one of Montana's ZIP codes, delivering to addresses in Philipsburg, Granite County.

City: Philipsburg
County: Granite County
State: Montana
Prefix: 598xx

Where this code sits

59858 is part of the 598xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Philipsburg.

Philipsburg Montana ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 59858 delivers to without sharing its boundary.

406 Area code 406

ZIP codes nearest 59858

The ZIP codes whose reference points sit closest to 59858.
ZIP code	Distance	Delivers to
ZIP code 59837	19 mi	Hall, MT
ZIP code 59711	21 mi	Anaconda, MT
ZIP code 59832	24 mi	Drummond, MT
ZIP code 59733	25 mi	Gold Creek, MT
ZIP code 59756	27 mi	Warm Springs, MT
ZIP code 59722	27 mi	Deer Lodge, MT
ZIP code 59731	32 mi	Garrison, MT
ZIP code 59750	36 mi	Butte, 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 59858, plotted from its record coordinates.

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

Scope ZIP code 59858. 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.