Based on ONS 2021 Census / 2022 mid-year estimates for built-up areas / city proper (methodology varies — see notes).
| Rank | City | Population | Nation/Region |
|---|---|---|---|
| 1 | London | 8,799,800 | England |
| 2 | Birmingham | 1,144,900 | England |
| 3 | Leeds | 812,000 | England |
| 4 | Glasgow | 632,350 | Scotland |
| 5 | Sheffield | 575,300 | England |
| 6 | Manchester | 568,900 | England |
| 7 | Edinburgh | 514,990 | Scotland |
| 8 | Liverpool | 506,600 | England |
| 9 | Bristol | 472,500 | England |
| 10 | Cardiff | 362,800 | Wales |
| 11 | Leicester | 368,600 | England |
| 12 | Coventry | 360,200 | England |
| 13 | Bradford | 354,600 | England |
| 14 | Nottingham | 329,200 | England |
| 15 | Newcastle upon Tyne | 306,500 | England |
| 16 | Belfast | 294,800 | Northern Ireland |
| 17 | Brighton & Hove | 277,200 | England |
| 18 | Hull | 270,800 | England |
| 19 | Plymouth | 264,700 | England |
| 20 | Stoke-on-Trent | 259,700 | England |