ZIP Code 59865

59865 is one of Montana's ZIP codes, delivering to addresses in Saint Ignatius, Lake County.

City: Saint Ignatius
County: Lake County
State: Montana
Prefix: 598xx

Where this code sits

59865 is part of the 598xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Saint Ignatius.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 59865 delivers to without sharing its boundary.

406 Area code 406

ZIP codes nearest 59865

The ZIP codes whose reference points sit closest to 59865.
ZIP code	Distance	Delivers to
ZIP code 59863	6.1 mi	Ravalli, MT
ZIP code 59824	8.8 mi	Charlo, MT
ZIP code 59821	9.9 mi	Arlee, MT
ZIP code 59831	11 mi	Dixon, MT
ZIP code 59864	15 mi	Ronan, MT
ZIP code 59855	19 mi	Pablo, MT
ZIP code 59826	21 mi	Condon, MT
ZIP code 59834	22 mi	Frenchtown, 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 59865, plotted from its record coordinates.

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

Scope ZIP code 59865. 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.