ZIP Code 59840

59840 is one of Montana's ZIP codes, delivering to addresses in Hamilton, Ravalli County.

City: Hamilton
County: Ravalli County
State: Montana
Prefix: 598xx

Where this code sits

59840 is part of the 598xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Hamilton.

Hamilton Montana ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 59840 delivers to without sharing its boundary.

406 Area code 406

ZIP codes nearest 59840

The ZIP codes whose reference points sit closest to 59840.
ZIP code	Distance	Delivers to
ZIP code 59835	2.8 mi	Grantsdale, MT
ZIP code 59828	6.2 mi	Corvallis, MT
ZIP code 59841	7.0 mi	Pinesdale, MT
ZIP code 59875	11 mi	Victor, MT
ZIP code 59829	15 mi	Darby, MT
ZIP code 59870	21 mi	Stevensville, MT
ZIP code 59827	23 mi	Conner, MT
ZIP code 59833	27 mi	Florence, 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 59840, plotted from its record coordinates.

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

Scope ZIP code 59840. 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.