13 cities
| City | County | 2025 Pop. ↓ |
|---|---|---|
| Dartmouth | Bristol County | 34,332 |
| Dracut | Middlesex County | 33,307 |
| Danvers | Essex County | 29,112 |
| Dedham | Norfolk County | 25,729 |
| Duxbury | Plymouth County | 16,515 |
| Dennis | Barnstable County | 14,762 |
| Dudley | Worcester County | 12,049 |
| Douglas | Worcester County | 9,605 |
| Dighton | Bristol County | 8,318 |
| Dover | Norfolk County | 6,205 |
| Dalton | Berkshire County | 6,180 |
| Deerfield | Franklin County | 5,176 |
| Dunstable | Middlesex County | 3,555 |