ZIP Code 59917

59917 is one of Montana's ZIP codes, delivering to addresses in Eureka, Lincoln County.

City: Eureka
County: Lincoln County
State: Montana
Prefix: 599xx

Where this code sits

59917 is part of the 599xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Eureka.

Eureka Montana ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 59917 delivers to without sharing its boundary.

406 Area code 406

ZIP codes nearest 59917

The ZIP codes whose reference points sit closest to 59917.
ZIP code	Distance	Delivers to
ZIP code 59918	8.1 mi	Fortine, MT
ZIP code 59930	11 mi	Rexford, MT
ZIP code 59934	11 mi	Trego, MT
ZIP code 59933	16 mi	Stryker, MT
ZIP code 59927	28 mi	Olney, MT
ZIP code 59923	40 mi	Libby, MT
ZIP code 59935	47 mi	Troy, MT
ZIP code 59925	54 mi	Marion, 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 59917, plotted from its record coordinates.

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

Scope ZIP code 59917. 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.