23 cities
| City | County | 2025 Pop. ↓ |
|---|---|---|
| Kingfisher | Kingfisher County | 5,145 |
| Kiefer | Creek County | 2,303 |
| Krebs | Pittsburg County | 2,060 |
| Kingston | Marshall County | 1,507 |
| Kenwood | Delaware County | 1,293 |
| Konawa | Seminole County | 1,252 |
| Keys | Cherokee County | 1,188 |
| Keefton | Muskogee County | 1,056 |
| Kellyville | Creek County | 1,039 |
| Kansas | Delaware County | 764 |
| Kiowa | Pittsburg County | 602 |
| Ketchum | Mayes County | 521 |
| Keota | Haskell County | 452 |
| Katie | Garvin County | 345 |
| Kaw City | Kay County | 332 |
| Kinta | Haskell County | 289 |
| Keyes | Cimarron County | 252 |
| Kremlin | Garfield County | 246 |
| Kenefic | Johnston County | 162 |
| Kemp | Bryan County | 134 |
| Kendrick | Creek County | 93 |
| Kildare | Kay County | 88 |
| Knowles | Beaver County | 5 |