ZIP Code 58831

58831 is one of North Dakota's ZIP codes, delivering to addresses in Alexander, McKenzie County.

City: Alexander
County: McKenzie County
State: North Dakota
Prefix: 588xx

Where this code sits

58831 is part of the 588xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Alexander.

Alexander North Dakota ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 58831 delivers to without sharing its boundary.

701 Area code 701

ZIP codes nearest 58831

The ZIP codes whose reference points sit closest to 58831.
ZIP code	Distance	Delivers to
ZIP code 58835	9.4 mi	Arnegard, ND
ZIP code 58838	14 mi	Cartwright, ND
ZIP code 58854	18 mi	Watford City, ND
ZIP code 58853	21 mi	Trenton, ND
ZIP code 59270	24 mi	Sidney, MT
ZIP code 58803	24 mi	Williston, ND
ZIP code 58802	26 mi	Williston, ND
ZIP code 59221	28 mi	Fairview, 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 58831, plotted from its record coordinates.

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

Scope ZIP code 58831. 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.