4G coverage from all four networks: every council in Wales
Blaenau Gwent had the highest 4G coverage from all four networks of Wales’s 22 councils in January 2026, at 99.94%.
Ceredigion had the lowest, at 92.10%. The middle council, Flintshire, had 98.36%.
| Rank | Council | Value |
|---|---|---|
| 1 | Blaenau Gwent | 99.94% |
| 2 | Torfaen | 99.91% |
| 3 | Caerphilly | 99.85% |
| 4 | Newport | 99.82% |
| 5 | Cardiff | 99.79% |
| 6 | Bridgend | 99.72% |
| 7 | Merthyr Tydfil | 99.68% |
| 8 | Swansea | 99.22% |
| 9 | Rhondda Cynon Taf | 99.15% |
| 10 | Neath Port Talbot | 98.83% |
| 11 | Flintshire | 98.36% |
| 12 | Wrexham | 98.31% |
| 13 | Vale of Glamorgan | 98.20% |
| 14 | Denbighshire | 97.97% |
| 15 | Isle of Anglesey | 97.44% |
| 16 | Conwy | 97.24% |
| 17 | Monmouthshire | 96.33% |
| 18 | Carmarthenshire | 95.68% |
| 19 | Gwynedd | 95.31% |
| 20 | Pembrokeshire | 94.71% |
| 21 | Powys | 92.66% |
| 22 | Ceredigion | 92.10% |