| UA | Previous districts
|
|---|
| Angelsey | Angelsey
|
| Bleanau Gwent | most of Bleanau Gwent
|
| Bridgend | Most of Ogwy
|
| Caerphilly | Islwyn and Rhymney Valley
|
| Camarthenshire | Camarthen, Llanelli, Dinefwr
|
| Cardiff | Cardiff, part of Taff-Ely
|
| Ceredigion | Arfon, Dwyfor, Meirionnydd
|
| Conwy | Aberconwy, most of Colwyn
|
| Denbighshire | Rhuddlan, bits of Glyndwyr and part of Colwyn
|
| Flintshire | Alyn, Deeside, Delyn
|
| Monmouthshire | Monmouth, bit of Blaenau Gwent
|
| Neath Port Talbot | Neath, Port Talbot, and bits of Lliw Valley
|
| Newport | Newport
|
| Pembrokeshire | Preseli, South Pembrokeshire
|
| Powys | Montgomeryshire, Radnorshire, Brecknock, part of Glyndwyr
|
| Rhondda Cynon Taf | Rhondda, Cynon Valley, most of Taff-Ely
|
| Swansea | Swansea, bits of Lliw Valley
|
| Torfaen | Torfaen
|
| Vale of Glamorgan | most of Vale of Glamorgan
|
| Wrexham | most of Wrexham, bits of Glyndwyr
|
