14 cities
| City | County | 2026 Pop. ↓ |
|---|---|---|
| Revere | Suffolk County | 64,174 |
| Randolph Town | Norfolk County | 35,752 |
| Reading | Middlesex County | 26,729 |
| Rockland | Plymouth County | 17,818 |
| Raynham | Bristol County | 16,067 |
| Rehoboth | Bristol County | 14,127 |
| Rutland | Worcester County | 9,921 |
| Rockport | Essex County | 7,207 |
| Rowley | Essex County | 6,332 |
| Rochester | Plymouth County | 6,030 |
| Russell | Hampden County | 1,650 |
| Richmond | Berkshire County | 1,403 |
| Royalston | Worcester County | 1,305 |
| Rowe | Franklin County | 417 |