ZIP Code 58012

58012 is one of North Dakota's ZIP codes, delivering to addresses in Casselton, Cass County.

City: Casselton
County: Cass County
State: North Dakota
Prefix: 580xx

Where this code sits

58012 is part of the 580xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Casselton.

Casselton North Dakota ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 58012 delivers to without sharing its boundary.

701 Area code 701

ZIP codes nearest 58012

The ZIP codes whose reference points sit closest to 58012.
ZIP code	Distance	Delivers to
ZIP code 58059	5.3 mi	Mapleton, ND
ZIP code 58079	7.8 mi	Wheatland, ND
ZIP code 58004	8.3 mi	Amenia, ND
ZIP code 58002	11 mi	Absaraka, ND
ZIP code 58042	12 mi	Harwood, ND
ZIP code 58078	14 mi	West Fargo, ND
ZIP code 58007	14 mi	Ayr, ND
ZIP code 58006	14 mi	Arthur, 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 58012, plotted from its record coordinates.

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

Scope ZIP code 58012. 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.