ZIP Code 58643

58643 is one of North Dakota's ZIP codes, delivering to addresses in Marmarth, Slope County.

City: Marmarth
County: Slope County
State: North Dakota
Prefix: 586xx

Where this code sits

58643 is part of the 586xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Marmarth.

Marmarth North Dakota ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 58643 delivers to without sharing its boundary.

701 Area code 701

ZIP codes nearest 58643

The ZIP codes whose reference points sit closest to 58643.
ZIP code	Distance	Delivers to
ZIP code 58651	14 mi	Rhame, ND
ZIP code 59313	19 mi	Baker, MT
ZIP code 59354	25 mi	Willard, MT
ZIP code 58623	25 mi	Bowman, ND
ZIP code 58632	27 mi	Golva, ND
ZIP code 58620	31 mi	Amidon, ND
ZIP code 58654	35 mi	Sentinel Butte, ND
ZIP code 58653	39 mi	Scranton, ND

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 58643, plotted from its record coordinates.

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

Scope ZIP code 58643. 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.