City | 2024 Population |
|---|---|
| Randallstown | 36,785 |
| Rawlings | 506 |
| Redland | 19,108 |
| Reid | 198 |
| Reisterstown | 27,428 |
| Ridgely | 1,611 |
| Ringgold | 68 |
| Rising Sun | 2,780 |
| Riva | 5,247 |
| Riverdale Park | 7,107 |
| Riverside | 5,960 |
| Riviera Beach | 12,339 |
| Robinwood | 8,522 |
| Rock Hall | 1,188 |
| Rock Point | 105 |
| Rockville | 67,284 |
| Rohrersville | 161 |
| Romancoke | 1,805 |
| Rosaryville | 12,316 |
| Rosedale | 20,153 |
| Rosemont | 297 |
| Rossville | 15,243 |