ZIP CodesZIP codes in Williams County, North Dakota
Williams County, North Dakota has 12 ZIP codes in this list, from 58755 to 58856. They cover 10 places, among them Williston, Mcgregor, Wildrose and Alamo.
| ZIP code | Place | Land area (sq mi) | Map point |
|---|---|---|---|
| 58755 | Mcgregor | 89.6 | 48.595, -102.929 |
| 58795 | Wildrose | 181 | 48.568, -103.154 |
| 58801 | Williston | 716 | 48.226, -103.649 |
| 58802 | Williston | no area | 48.169, -103.615 |
| 58803 | Williston | no area | 48.147, -103.620 |
| 58830 | Alamo | 315 | 48.582, -103.470 |
| 58843 | Epping | 225 | 48.276, -103.376 |
| 58845 | Grenora | 257 | 48.525, -103.918 |
| 58849 | Ray | 302 | 48.322, -103.165 |
| 58852 | Tioga | 311 | 48.365, -102.958 |
| 58853 | Trenton | 14.8 | 48.071, -103.837 |
| 58856 | Zahl | 197 | 48.579, -103.660 |
The ZIP code areas of Williams County add up to about 2,608 square miles of land (6,754 sq km) as the Census Bureau draws them. The largest is 58801 (Williston), with 716 square miles.
Places with more than one code here: Williston (3 codes).
Using these codes
- In an address, the ZIP code comes last, after the city and the two-letter state: Mcgregor, ND 58755.
- Tap a ZIP code to open it in the look-up, with a copy button for the address line.
- A code can cross a county line, and one town can have several codes. The table shows the main place of each code.
- "No area" means the Census Bureau draws no area for that code. Such codes are usually for post office boxes or a single building.
Places and counties: GeoNames. Areas: U.S. Census Bureau, 2024 ZIP Code Tabulation Areas. Checked in November 2026. This site is not connected with the United States Postal Service; for mailing, confirm the address with USPS.