| City | 2026 Pop. ↓ |
|---|---|
| Dudley | 335,485 |
| Doncaster | 323,304 |
| Derby | 278,015 |
| Dacorum | 163,854 |
| Derry City and Strabane | 153,011 |
| Dundee City | 150,455 |
| Dumfries and Galloway | 145,210 |
| Dartford | 130,124 |
| Dover | 121,454 |
| Darlington | 113,987 |
| Denbighshire | 99,000 |
| Derbyshire Dales | 71,950 |