City | 2024 Population |
|---|---|
| Damascus | 16,648 |
| Dames Quarter | 319 |
| Danville | 668 |
| Dargan | 189 |
| Darlington | 434 |
| Darnestown | 6,722 |
| Dawson | 72 |
| Deal Island | 300 |
| Deale | 4,698 |
| Deer Park | 300 |
| Delmar | 4,803 |
| Denton | 5,024 |
| Derwood | 2,056 |
| District Heights | 5,768 |
| Downsville | 973 |
| Drum Point | 2,923 |
| Dundalk | 66,111 |
| Dunkirk | 2,233 |