Below 50,000
| Rank | District | Population | Type | Ceremonial county |
| 319 | Christchurch | 47,700 | Borough | Dorset |
| 320 | Purbeck | 45,000 | Dorset | |
| 321 | Rutland | 37,400 | Unitary authority | Rutland |
| 322 | West Somerset | 34,700 | Somerset | |
| 323 | City of London | 7,400 | City (TI), sui generis | City of London |
| 324 | Isles of Scilly | 2,200 | sui generis | Cornwall |
Read more about this topic: List Of English Districts By Population