ZIP Code 58011

58011 is one of North Dakota's ZIP codes, delivering to addresses in Buffalo, Cass County.

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

Where this code sits

58011 is part of the 580xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Buffalo.

Buffalo North Dakota ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 58011 delivers to without sharing its boundary.

701 Area code 701

ZIP codes nearest 58011

The ZIP codes whose reference points sit closest to 58011.
ZIP code	Distance	Delivers to
ZIP code 58071	5.9 mi	Tower City, ND
ZIP code 58007	6.9 mi	Ayr, ND
ZIP code 58002	7.0 mi	Absaraka, ND
ZIP code 58079	11 mi	Wheatland, ND
ZIP code 58063	12 mi	Oriska, ND
ZIP code 58029	15 mi	Erie, ND
ZIP code 58012	15 mi	Casselton, ND
ZIP code 58031	16 mi	Fingal, 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 58011, plotted from its record coordinates.

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

Scope ZIP code 58011. 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.