Fastest and slowest growing places in Wales (2025)
Newport was the fastest growing of Wales’s 22 councils in 2025 (annual population change 0.7%).
Merthyr Tydfil was the slowest growing (−0.6%). The middle council, Bridgend, had −0.1%.
See it on the map| Rank | Council | Value |
|---|---|---|
| 1 | Newport | 0.7% |
| 2 | Denbighshire | 0.4% |
| 3 | Monmouthshire | 0.2% |
| 4 | Pembrokeshire | 0.1% |
| =5 | Ceredigion | 0.0% |
| =5 | Conwy | 0.0% |
| =5 | Flintshire | 0.0% |
| =5 | Powys | 0.0% |
| =5 | Vale of Glamorgan | 0.0% |
| =5 | Wrexham | 0.0% |
| =11 | Bridgend | −0.1% |
| =11 | Caerphilly | −0.1% |
| =11 | Cardiff | −0.1% |
| =11 | Torfaen | −0.1% |
| =15 | Blaenau Gwent | −0.2% |
| =15 | Carmarthenshire | −0.2% |
| =17 | Gwynedd | −0.3% |
| =17 | Rhondda Cynon Taf | −0.3% |
| =19 | Isle of Anglesey | −0.4% |
| =19 | Neath Port Talbot | −0.4% |
| 21 | Swansea | −0.5% |
| 22 | Merthyr Tydfil | −0.6% |
Worked out by Open Index from the mid-year population estimates. Source and method · See it on the map