Founded in 1890, Williams County is one of 53 counties in the state of North Dakota. The city of Williston is the county seat. With FIPS code of 105, Williams County has a population of 38,484 and area of 2,071 square miles (5,364 km2).
List of all cities in Williams County, ND alphabetically
| City/Town | Postal Code | Area Code |
| Alamo, ND | 58830 | 701 |
| Alkabo, ND | 58845 | 701 |
| Appam, ND | 58830 | 701 |
| Bonetraill, ND | 58801 | 701 |
| Buford, ND | 58801 | 701 |
| Corinth, ND | 58830 | 701 |
| Epping, ND | 58843 | 701 |
| Grenora, ND | 58845 | 701 |
| Hamlet, ND | 58795 | 701 |
| Hanks, ND | 58856 | 701 |
| Marmon, ND | 58856 | 701 |
| McGregor, ND | 58755 | 701 |
| Ray, ND | 58849 | 701 |
| Round Prairie, ND | 58801 | 701 |
| Springbrook, ND | 58843 | 701 |
| Temple, ND | 58852 | 701 |
| Tioga, ND | 58852 | 701 |
| Trenton, ND | 58853 | 701 |
| Westby, ND | 58845 | 701 |
| Wheelock, ND | 58849 | 701 |
| Wildrose, ND | 58795 | 701 |
| Williston, ND | 58801 | 701 |
| 58802 | 701 | |
| Zahl, ND | 58856 | 701 |