| City | County | 2026 Pop. ↓ |
|---|---|---|
| Dartmouth | Bristol County | 34,456 |
| Dracut | Middlesex County | 32,858 |
| Danvers | Essex County | 29,205 |
| Dedham | Norfolk County | 25,757 |
| Duxbury | Plymouth County | 16,540 |
| Dennis | Barnstable County | 14,870 |
| Dudley | Worcester County | 11,951 |
| Douglas | Worcester County | 9,631 |
| Dighton | Bristol County | 8,392 |
| Dalton | Berkshire County | 6,111 |
| Dover | Norfolk County | 6,040 |
| Deerfield | Franklin County | 5,127 |
| Dunstable | Middlesex County | 3,499 |