Founded in December 10, 1920, Judith Basin County is one of 56 counties in the state of Montana. Historically, Judith Basin County was formed from Cascade County and Fergus County. The city of Stanford is the county seat. With FIPS code of 45, Judith Basin County has a population of 2,044 and area of 1,870 square miles (4,843 km2).
List of all cities in Judith Basin County, MT alphabetically
| City/Town | Postal Code | Area Code |
| Benchland, MT | 59462 | 406 |
| Geyser, MT | 59447 | 406 |
| Hobson, MT | 59452 | 406 |
| Moccasin, MT | 59462 | 406 |
| Raynesford, MT | 59469 | 406 |
| Stanford, MT | 59479 | 406 |
| Windham, MT | 59479 | 406 |