Senedd constituencies and electoral regions
The Senedd, the unicameral parliament of Wales, has 40 single-member constituencies (Welsh: etholiadau) and five multi-member electoral regions (Welsh: rhanbarthau etholiadol).
A map of the 40 constituencies and the five electoral regions of Wales.
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
Aberafan |
51,450 | Neath Port Talbot | South Wales West |
| Aberconwy | 45,426 | Conwy | North Wales |
| Alyn and Deeside
Alun a Glannau Dyfrdwy |
65,183 | Flintshire; Wrexham | North Wales |
| Arfon | 43,125 | Gwynedd | North Wales |
| Blaenau Gwent | 51,495 | Blaenau Gwent | South Wales East |
| Brecon and Radnorshire
Brycheiniog a Sir Faesyfed |
55,124 | Powys | Mid and West Wales |
| Bridgend
Pen-y-bont ar Ogwr |
64,245 | Bridgend | South Wales West |
| Caerphilly
Caerffili |
64,926 | Caerphilly; Newport | South Wales East |
| Cardiff Central
Canol Caerdydd |
63,017 | Cardiff | South Wales Central |
| Cardiff North
Gogledd Caerdydd |
69,143 | Cardiff | South Wales Central |
| Cardiff South and Penarth
De Caerdydd a Phenarth |
81,366 | Cardiff | South Wales Central |
| Cardiff West
Gorllewin Caerdydd |
69,511 | Cardiff | South Wales Central |
| Carmarthen East and Dinefwr
Dwyrain Caerfyrddin a Dinefwr |
58,048 | Carmarthenshire | Mid and West Wales |
| Carmarthen West and South Pembrokeshire
Gorllewin Caerfyrddin a De Sir Benfro |
59,924 | Carmarthenshire; Pembrokeshire | Mid and West Wales |
| Ceredigion | 56,634 | Ceredigion | Mid and West Wales |
| Clwyd South
De Clwyd |
54,747 | Denbighshire; Wrexham | North Wales |
| Clwyd West
Gorllewin Clwyd |
58,024 | Conwy; Denbighshire | North Wales |
| Cynon Valley
Cwm Cynon |
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
Gŵyr |
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
Merthyr Tudful a Rhymni |
57,883 | Caerphilly; Merthyr Tydfil | South Wales East |
| Monmouth
Sir Fynwy |
67,252 | Monmouthshire | South Wales East |
| Montgomeryshire
Sir Drefaldwyn |
49,691 | Powys | Mid and West Wales |
| Neath
Castell-nedd |
57,032 | Neath Port Talbot | South Wales West |
| Newport East
Dwyrain Casnewydd |
60,936 | Newport | South Wales East |
| Newport West
Gorllewin Casnewydd |
68,748 | Newport | South Wales East |
| Ogmore
Ogwr |
57,934 | Rhondda Cynon Taf | South Wales West |
| Pontypridd | 60,923 | Rhondda Cynon Taf | South Wales Central |
| Preseli Pembrokeshire
Preseli Sir Benfro |
60,025 | Pembrokeshire | Mid and West Wales |
| Rhondda | 50,471 | Rhondda Cynon Taf | South Wales Central |
| Swansea East
Dwyrain Abertawe |
60,726 | Swansea | South Wales West |
| Swansea West
Gorllewin Abertawe |
59,419 | Swansea | South Wales West |
| Torfaen | 63,061 | Torfaen | South Wales East |
| Vale of Clwyd
Dyffryn Clwyd |
56,307 | Denbighshire | North Wales |
| Vale of Glamorgan
Bro Morgannwg |
77,204 | Vale of Glamorgan | South Wales Central |
| Wrexham
Wrecsam |
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 | ||
Electoral regions
| Electoral region
(Welsh name) |
Number of constituencies | Constituencies
(ordered alphabetically) |
Electoral population (March 2020) | Image
(numbered alphabetically) |
|---|---|---|---|---|
| Mid and West Wales
Canolbarth a Gorllewin Cymru |
8 | Brecon and Radnorshire, Carmarthen East and Dinefwr, Carmarthen West and South Pembrokeshire, Ceredigion, Dwyfor Meirionnydd, Llanelli, Montgomeryshire, Preseli Pembrokeshire | 446,524 |  |
| North Wales
Gogledd Cymru |
9 | Aberconwy, Alyn and Deeside, Arfon, Clwyd South, Clwyd West, Delyn, Vale of Clwyd, Wrexham, Ynys Môn | 483,739 |  |
| South Wales Central
Canol De Cymru |
8 | Cardiff Central, Cardiff North, Cardiff South and Penarth, Cardiff West, Cynon Valley, Pontypridd, Rhondda, Vale of Glamorgan | 523,096 |  |
| South Wales East
Dwyrain De Cymru |
8 | Blaenau Gwent, Caerphilly, Islwyn, Merthyr Tydfil and Rhymney, Monmouth, Newport East, Newport West, Torfaen | 491,142 |  |
| South Wales West
Gorllewin De Cymru |
7 | Aberavon, Bridgend, Gower, Neath, Ogmore, Swansea East, Swansea West | 413,569 |  |
Related pages
References
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