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A map of the 40 constituencies and the five electoral regions of Wales.
The Senedd, the unicameral parliament of Wales, has 40 single-member constituencies (Welsh: etholiadau) and five multi-member electoral regions (Welsh: rhanbarthau etholiadol).
The boundaries and names of the 40 constituencies are the same as those in the House of Commons in the Westminster Parliament.
| 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
|
| 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
|
|
