Zip Area Code

Slope, North Dakota

Slope, North Dakota, has 2 towns and 2 ZIP codes, in area code 701.

Towns in Slope, A to Z

TownZIP codesArea codes
Amidon58620701
Marmarth58643701

ZIP codes in Slope

Area code in Slope

  • Area code 701

    In service since 1947. Local calls are dialed with seven digits.