ZIP Code 58803

58803 is one of North Dakota's ZIP codes, delivering to addresses in Williston, Williams County.

City: Williston
County: Williams County
State: North Dakota
Prefix: 588xx

Where this code sits

58803 is part of the 588xx range, the group of codes handled by one mail processing centre. Williston is served by 3 ZIP codes in total; the full list, with the county each falls in, is on the Williston page.

Williston North Dakota ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 58803 delivers to without sharing its boundary.

701 Area code 701

ZIP codes nearest 58803

The ZIP codes whose reference points sit closest to 58803.
ZIP code	Distance	Delivers to
ZIP code 58802	1.5 mi	Williston, ND
ZIP code 58801	5.6 mi	Williston, ND
ZIP code 58853	11 mi	Trenton, ND
ZIP code 58843	14 mi	Epping, ND
ZIP code 58849	24 mi	Ray, ND
ZIP code 58831	24 mi	Alexander, ND
ZIP code 58835	25 mi	Arnegard, ND
ZIP code 59212	27 mi	Bainville, 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 58803, plotted from its record coordinates.

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

Scope ZIP code 58803. 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.