| City | County | 2026 Pop. ↓ |
|---|---|---|
| Taunton | Bristol County | 62,837 |
| Tewksbury | Middlesex County | 32,166 |
| Tyngsborough | Middlesex County | 12,760 |
| Townsend | Middlesex County | 9,124 |
| Templeton | Worcester County | 8,696 |
| Topsfield | Essex County | 6,618 |
| Tisbury | Dukes County | 4,890 |
| Truro | Barnstable County | 2,478 |
| Tolland | Hampden County | 479 |
| Tyringham | Berkshire County | 422 |