Most and least densely populated places in Wales (2021)
Cardiff was the most densely populated of Wales’s 22 councils in 2021 (population density 2,546 per km²).
Powys was the least densely populated (26 per km²). The middle council, Flintshire, had 352 per km².
See it on the map| Rank | Council | Value |
|---|---|---|
| 1 | Cardiff | 2,546 per km² |
| 2 | Newport | 838 per km² |
| 3 | Torfaen | 731 per km² |
| 4 | Caerphilly | 634 per km² |
| 5 | Swansea | 632 per km² |
| 6 | Blaenau Gwent | 615 per km² |
| 7 | Bridgend | 580 per km² |
| 8 | Rhondda Cynon Taf | 560 per km² |
| 9 | Merthyr Tydfil | 526 per km² |
| 10 | Vale of Glamorgan | 398 per km² |
| 11 | Flintshire | 352 per km² |
| 12 | Neath Port Talbot | 322 per km² |
| 13 | Wrexham | 268 per km² |
| 14 | Denbighshire | 114 per km² |
| 15 | Monmouthshire | 109 per km² |
| 16 | Conwy | 102 per km² |
| 17 | Isle of Anglesey | 96 per km² |
| 18 | Carmarthenshire | 79 per km² |
| 19 | Pembrokeshire | 76 per km² |
| 20 | Gwynedd | 46 per km² |
| 21 | Ceredigion | 40 per km² |
| 22 | Powys | 26 per km² |
Worked out by Open Index from census population counts and the area of each place. Source and method · See it on the map