ZIP Code 59632

59632 is one of Montana's ZIP codes, delivering to addresses in Boulder, Jefferson County.

City: Boulder
County: Jefferson County
State: Montana
Prefix: 596xx

Where this code sits

59632 is part of the 596xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Boulder.

Boulder Montana ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 59632 delivers to without sharing its boundary.

406 Area code 406

ZIP codes nearest 59632

The ZIP codes whose reference points sit closest to 59632.
ZIP code	Distance	Delivers to
ZIP code 59631	7.9 mi	Basin, MT
ZIP code 59638	10 mi	Jefferson City, MT
ZIP code 59634	17 mi	Clancy, MT
ZIP code 59641	23 mi	Radersburg, MT
ZIP code 59728	23 mi	Elliston, MT
ZIP code 59759	24 mi	Whitehall, MT
ZIP code 59623	25 mi	Helena, MT
ZIP code 59620	25 mi	Helena, 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 59632, plotted from its record coordinates.

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

Scope ZIP code 59632. 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.