10 cities
| City | County | 2025 Pop. ↓ |
|---|---|---|
| Taunton city | Bristol County | 61,470 |
| Tewksbury town | Middlesex County | 31,733 |
| Tyngsborough town | Middlesex County | 12,557 |
| Townsend town | Middlesex County | 9,020 |
| Templeton town | Worcester County | 8,371 |
| Topsfield town | Essex County | 6,624 |
| Tisbury town | Dukes County | 4,775 |
| Truro town | Barnstable County | 2,465 |
| Tolland town | Hampden County | 469 |
| Tyringham town | Berkshire County | 412 |