22 cities
| City | County | 2025 Pop. ↓ |
|---|---|---|
| Richmond | Madison County | 40,652 |
| Radcliff | Hardin County | 22,626 |
| Russellville | Logan County | 7,490 |
| Reidland | Graves County | 4,686 |
| Rineyville | Hardin County | 3,758 |
| Russell | Greenup County | 3,613 |
| Russell Springs | Russell County | 2,827 |
| Raceland | Greenup County | 2,291 |
| Ryland Heights | Kenton County | 956 |
| Rolling Hills | Jefferson County | 950 |
| Rolling Fields | Jefferson County | 733 |
| Ravenna | Estill County | 551 |
| Riverwood | Jefferson County | 501 |
| River Bluff | Jefferson County | 462 |
| Robards | Henderson County | 444 |
| Richlawn | Jefferson County | 422 |
| Rockholds | Whitley County | 364 |
| Rockport | Ohio County | 265 |
| Raywick | Marion County | 154 |
| Rosine | Ohio County | 128 |
| Rochester | Butler County | 113 |
| Rabbit Hash | Boone County | 68 |