22 cities
| City | Parish | 2025 Pop. ↓ |
|---|---|---|
| Ruston | Lincoln Parish | 22,285 |
| River Ridge | Jefferson Parish | 13,329 |
| Raceland | Lafourche Parish | 11,319 |
| Red Chute | Bossier Parish | 7,906 |
| Reserve | St. John the Baptist Parish | 7,573 |
| Rayne | Acadia Parish | 6,830 |
| Richwood | Ouachita Parish | 3,759 |
| Rayville | Richland Parish | 3,145 |
| Rosepine | Vernon Parish | 1,421 |
| Ringgold | Bienville Parish | 1,276 |
| Roseland | Tangipahoa Parish | 895 |
| Rosedale | Iberville Parish | 615 |
| Ridgecrest | Concordia Parish | 514 |
| Richmond | Madison Parish | 461 |
| Reddell | Evangeline Parish | 346 |
| Rio | St. Tammany Parish | 334 |
| Rock Hill | Grant Parish | 292 |
| Roanoke | Jefferson Davis Parish | 252 |
| Reeves | Allen Parish | 218 |
| Rodessa | Caddo Parish | 179 |
| Robeline | Natchitoches Parish | 112 |
| Romeville | St. James Parish | 1 |