ZIP Code 59223

59223 is one of Montana's ZIP codes, delivering to addresses in Fort Peck, Valley County.

City: Fort Peck
County: Valley County
State: Montana
Prefix: 592xx

Where this code sits

59223 is part of the 592xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Fort Peck.

Fort Peck Montana ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 59223 delivers to without sharing its boundary.

406 Area code 406

ZIP codes nearest 59223

The ZIP codes whose reference points sit closest to 59223.
ZIP code	Distance	Delivers to
ZIP code 59248	9.5 mi	Nashua, MT
ZIP code 59230	15 mi	Glasgow, MT
ZIP code 59225	28 mi	Frazer, MT
ZIP code 59231	28 mi	Saint Marie, MT
ZIP code 59273	32 mi	Vandalia, MT
ZIP code 59201	39 mi	Wolf Point, MT
ZIP code 59244	40 mi	Larslan, MT
ZIP code 59260	47 mi	Richland, 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 59223, plotted from its record coordinates.

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

Scope ZIP code 59223. 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.