7 cities
| City | County | 2026 Pop. ↓ |
|---|---|---|
| Independence | Kenton County | 30,901 |
| Indian Hills | Jefferson County | 2,956 |
| Irvine | Estill County | 2,251 |
| Irvington | Breckinridge County | 1,397 |
| Ironville | Boyd County | 559 |
| Inez | Martin County | 496 |
| Island | McLean County | 452 |