Founded in 1851, Cass County is one of 87 counties in the state of Minnesota. Historically, Cass County was formed from Dakota County, Pembina County, Mankahto County and Wahnata County. The city of Walker is the county seat. With FIPS code of 21, Cass County has a population of 30,639 and area of 2,017.60 square miles (5,226 km2).
List of all cities in Cass County, MN alphabetically
| City/Town | Postal Code | Area Code |
| Ah Gwah Ching, MN | 56430 | 218 |
| Backus, MN | 56435 | 218 |
| Barclay, MN | 56474 | 218 |
| Bena, MN | 56626 | 218 |
| Beulah, MN | 56662 | 218 |
| Blind Lake, MN | 56474 | 218 |
| Boy Lake, MN | 56655 | 218 |
| Boy River, MN | 56672 | 218 |
| Brevik, MN | 56655 | 218 |
| Cass Lake, MN | 56633 | 218 |
| Chickamaw Beach, MN | 56474 | 218 |
| Crooked Lake, MN | 56662 | 218 |
| Farden, MN | 56633 | 218 |
| Farris, MN | 56633 | 218 |
| Federal Dam, MN | 56641 | 218 |
| Hackensack, MN | 56452 | 218 |
| Inguadona, MN | 56655 | 218 |
| Kego, MN | 56655 | 218 |
| Leech Lake, MN | 56484 | 218 |
| Lima, MN | 56672 | 218 |
| Longville, MN | 56655 | 218 |
| Macville, MN | 55785 | 218 |
| Onigum, MN | 56484 | 218 |
| Outing, MN | 56662 | 218 |
| Pike Bay, MN | 56633 | 218 |
| Pillager, MN | 56473 | 218 |
| Pine River, MN | 56474 | 218 |
| Ponto Lake, MN | 56474 | 218 |
| Remer, MN | 56672 | 218 |
| Rheiderland, MN | 56662 | 218 |
| Schley, MN | 56633 | 218 |
| Shingobee, MN | 56484 | 218 |
| Shovel Lake, MN | 55785 | 218 |
| Slater, MN | 56672 | 218 |
| Smoky Hollow, MN | 56672 | 218 |
| Swanburg, MN | 56474 | 218 |
| Swatara, MN | 55785 | 218 |
| Sylvan, MN | 56473 | 218 |
| Thunder Lake, MN | 56672 | 218 |
| Trelipe, MN | 56662 | 218 |
| Turtle Lake, MN | 56484 | 218 |
| Wabedo, MN | 56655 | 218 |
| Walden, MN | 56474 | 218 |
| Walker, MN | 56484 | 218 |
| Whipholt, MN | 56484 | 218 |
| Wilkinson, MN | 56633 | 218 |
| Wilson, MN | 56474 | 218 |
| Woodrow, MN | 56474 | 218 |