23 cities
| City | County | 2025 Pop. ↓ |
|---|---|---|
| Kingfisher | Kingfisher County | 5,258 |
| Kiefer | Creek County | 2,295 |
| Krebs | Pittsburg County | 2,064 |
| Kingston | Marshall County | 1,489 |
| Kenwood | Delaware County | 1,293 |
| Konawa | Seminole County | 1,234 |
| Keys | Cherokee County | 1,188 |
| Keefton | Muskogee County | 1,056 |
| Kellyville | Creek County | 1,053 |
| Kansas | Delaware County | 763 |
| Kiowa | Pittsburg County | 610 |
| Ketchum | Mayes County | 520 |
| Keota | Haskell County | 449 |
| Katie | Garvin County | 349 |
| Kaw City | Kay County | 328 |
| Kinta | Haskell County | 285 |
| Keyes | Cimarron County | 249 |
| Kremlin | Garfield County | 247 |
| Kenefic | Johnston County | 161 |
| Kemp | Bryan County | 134 |
| Kendrick | Creek County | 95 |
| Kildare | Kay County | 85 |
| Knowles | Beaver County | 5 |