| City | County | 2025 Pop. ↓ |
|---|---|---|
| Kindred | Cass County | 1,086 |
| Killdeer | Dunn County | 888 |
| Kenmare | Ward County | 886 |
| Kulm | LaMoure County | 364 |
| Kensal | Stutsman County | 146 |
| Karlsruhe | McHenry County | 83 |
| Kathryn | Barnes County | 63 |
| Kramer | Bottineau County | 24 |
| Knox | Benson County | 19 |
| Kief | McHenry County | 8 |