22 cities
| City | County | 2025 Pop. ↓ |
|---|---|---|
| Richmond | Madison County | 38,854 |
| Radcliff | Hardin County | 22,565 |
| Russellville | Logan County | 7,538 |
| Reidland | Graves County | 4,686 |
| Rineyville | Hardin County | 3,758 |
| Russell | Greenup County | 3,582 |
| Russell Springs | Russell County | 2,839 |
| Raceland | Greenup County | 2,276 |
| Ryland Heights | Kenton County | 943 |
| Rolling Hills | Jefferson County | 916 |
| Rolling Fields | Jefferson County | 702 |
| Ravenna | Estill County | 542 |
| Riverwood | Jefferson County | 479 |
| River Bluff | Jefferson County | 462 |
| Robards | Henderson County | 442 |
| Richlawn | Jefferson County | 406 |
| Rockholds | Whitley County | 364 |
| Rockport | Ohio County | 257 |
| Raywick | Marion County | 155 |
| Rosine | Ohio County | 128 |
| Rochester | Butler County | 115 |
| Rabbit Hash | Boone County | 68 |