Senedd constituencies and electoral regions
The Senedd, the unicameral parliament of Wales, has 40 single-member constituencies (Welsh: [etholiadau] Error: {{Lang}}: text has italic markup (help)) and five multi-member electoral regions (Welsh: [rhanbarthau etholiadol] Error: {{Lang}}: text has italic markup (help)).
The boundaries and names of the 40 constituencies are the same as those in the House of Commons in the Westminster Parliament.
Constituencies
Current constituencies
| Constituency
(Welsh name) |
Electoral population (March 2020) | Principal Areas of Wales | Electoral region |
|---|---|---|---|
| Aberavon
Welsh: [Aberafan] Error: {{Lang}}: text has italic markup (help) |
51,450 | Neath Port Talbot | South Wales West |
| Aberconwy | 45,426 | Conwy | North Wales |
| Alyn and Deeside
Welsh: [Alun a Glannau Dyfrdwy] Error: {{Lang}}: text has italic markup (help) |
65,183 | Flintshire; Wrexham | North Wales |
| Arfon | 43,125 | Gwynedd | North Wales |
| Blaenau Gwent | 51,495 | Blaenau Gwent | South Wales East |
| Brecon and Radnorshire
Welsh: [Brycheiniog a Sir Faesyfed] Error: {{Lang}}: text has italic markup (help) |
55,124 | Powys | Mid and West Wales |
| Bridgend
Welsh: [Pen-y-bont ar Ogwr] Error: {{Lang}}: text has italic markup (help) |
64,245 | Bridgend | South Wales West |
| Caerphilly
Welsh: [Caerffili] Error: {{Lang}}: text has italic markup (help) |
64,926 | Caerphilly; Newport | South Wales East |
| Cardiff Central
Welsh: [Canol Caerdydd] Error: {{Lang}}: text has italic markup (help) |
63,017 | Cardiff | South Wales Central |
| Cardiff North
Welsh: [Gogledd Caerdydd] Error: {{Lang}}: text has italic markup (help) |
69,143 | Cardiff | South Wales Central |
| Cardiff South and Penarth
Welsh: [De Caerdydd a Phenarth] Error: {{Lang}}: text has italic markup (help) |
81,366 | Cardiff | South Wales Central |
| Cardiff West
Welsh: [Gorllewin Caerdydd] Error: {{Lang}}: text has italic markup (help) |
69,511 | Cardiff | South Wales Central |
| Carmarthen East and Dinefwr
Welsh: [Dwyrain Caerfyrddin a Dinefwr] Error: {{Lang}}: text has italic markup (help) |
58,048 | Carmarthenshire | Mid and West Wales |
| Carmarthen West and South Pembrokeshire
Welsh: [Gorllewin Caerfyrddin a De Sir Benfro] Error: {{Lang}}: text has italic markup (help) |
59,924 | Carmarthenshire; Pembrokeshire | Mid and West Wales |
| Ceredigion | 56,634 | Ceredigion | Mid and West Wales |
| Clwyd South
Welsh: [De Clwyd] Error: {{Lang}}: text has italic markup (help) |
54,747 | Denbighshire; Wrexham | North Wales |
| Clwyd West
Welsh: [Gorllewin Clwyd] Error: {{Lang}}: text has italic markup (help) |
58,024 | Conwy; Denbighshire | North Wales |
| Cynon Valley
Welsh: [Cwm Cynon] Error: {{Lang}}: text has italic markup (help) |
51,461 | Rhondda Cynon Taf | South Wales Central |
| Delyn | 55,604 | Conwy; Flintshire | North Wales |
| Dwyfor Meirionnydd | 44,882 | Gwynedd | Mid and West Wales |
| Gower
Welsh: [Gŵyr] Error: {{Lang}}: text has italic markup (help) |
62,763 | Swansea | South Wales West |
| Islwyn | 56,841 | Caerphilly | South Wales East |
| Llanelli | 62,196 | Carmarthenshire; Swansea | Mid and West Wales |
| Merthyr Tydfil and Rhymney
Welsh: [Merthyr Tudful a Rhymni] Error: {{Lang}}: text has italic markup (help) |
57,883 | Caerphilly; Merthyr Tydfil | South Wales East |
| Monmouth
Welsh: [Sir Fynwy] Error: {{Lang}}: text has italic markup (help) |
67,252 | Monmouthshire | South Wales East |
| Montgomeryshire
Welsh: [Sir Drefaldwyn] Error: {{Lang}}: text has italic markup (help) |
49,691 | Powys | Mid and West Wales |
| Neath
Welsh: [Castell-nedd] Error: {{Lang}}: text has italic markup (help) |
57,032 | Neath Port Talbot | South Wales West |
| Newport East
Welsh: [Dwyrain Casnewydd] Error: {{Lang}}: text has italic markup (help) |
60,936 | Newport | South Wales East |
| Newport West
Welsh: [Gorllewin Casnewydd] Error: {{Lang}}: text has italic markup (help) |
68,748 | Newport | South Wales East |
| Ogmore
Welsh: [Ogwr] Error: {{Lang}}: text has italic markup (help) |
57,934 | Rhondda Cynon Taf | South Wales West |
| Pontypridd | 60,923 | Rhondda Cynon Taf | South Wales Central |
| Preseli Pembrokeshire
Welsh: [Preseli Sir Benfro] Error: {{Lang}}: text has italic markup (help) |
60,025 | Pembrokeshire | Mid and West Wales |
| Rhondda | 50,471 | Rhondda Cynon Taf | South Wales Central |
| Swansea East
Welsh: [Dwyrain Abertawe] Error: {{Lang}}: text has italic markup (help) |
60,726 | Swansea | South Wales West |
| Swansea West
Welsh: [Gorllewin Abertawe] Error: {{Lang}}: text has italic markup (help) |
59,419 | Swansea | South Wales West |
| Torfaen | 63,061 | Torfaen | South Wales East |
| Vale of Clwyd
Welsh: [Dyffryn Clwyd] Error: {{Lang}}: text has italic markup (help) |
56,307 | Denbighshire | North Wales |
| Vale of Glamorgan
Welsh: [Bro Morgannwg] Error: {{Lang}}: text has italic markup (help) |
77,204 | Vale of Glamorgan | South Wales Central |
| Wrexham
Welsh: [Wrecsam] Error: {{Lang}}: text has italic markup (help) |
52,713 | Wrexham | North Wales |
| Ynys Môn | 52,610 | Isle of Anglesey | North Wales |
Former constituencies
| Former constituency | Preserved county | Region of former constituency | Replacement constituencies and regions |
|---|---|---|---|
| Caernarfon | Gwynedd | North Wales | Arfon, North Wales electoral region |
| Dwyfor Meirionnydd, Mid and West Wales electoral region | |||
| Conwy | Clwyd | North Wales | Arfon, North Wales electoral region |
| Gwynedd | Aberconwy, North Wales electoral region | ||
| Meirionnydd Nant Conwy | Clwyd | Mid and West Wales | Aberconwy, North Wales electoral region |
| Gwynedd | Dwyfor Meirionnydd, Mid and West Wales electoral region |