Senedd constituencies and electoral regions

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] 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

Electoral regions

Electoral region

(Welsh name)

Number of constituencies Constituencies

(ordered alphabetically)

Electoral population (March 2020) Image

(numbered alphabetically)

Mid and West Wales

Welsh: [Canolbarth a Gorllewin Cymru] Error: {{Lang}}: text has italic markup (help)

8 Brecon and Radnorshire, Carmarthen East and Dinefwr, Carmarthen West and South Pembrokeshire, Ceredigion, Dwyfor Meirionnydd, Llanelli, Montgomeryshire, Preseli Pembrokeshire 446,524 Mid Wales Senedd region 2021.svg
North Wales

Welsh: [Gogledd Cymru] Error: {{Lang}}: text has italic markup (help)

9 Aberconwy, Alyn and Deeside, Arfon, Clwyd South, Clwyd West, Delyn, Vale of Clwyd, Wrexham, Ynys Môn 483,739 North Wales Senedd region 2021.svg
South Wales Central

Welsh: [Canol De Cymru] Error: {{Lang}}: text has italic markup (help)

8 Cardiff Central, Cardiff North, Cardiff South and Penarth, Cardiff West, Cynon Valley, Pontypridd, Rhondda, Vale of Glamorgan 523,096 South Wales Central Senedd region 2021.svg
South Wales East

Welsh: [Dwyrain De Cymru] Error: {{Lang}}: text has italic markup (help)

8 Blaenau Gwent, Caerphilly, Islwyn, Merthyr Tydfil and Rhymney, Monmouth, Newport East, Newport West, Torfaen 491,142 South Wales East Senedd region 2021.svg
South Wales West

Welsh: [Gorllewin De Cymru] Error: {{Lang}}: text has italic markup (help)

7 Aberavon, Bridgend, Gower, Neath, Ogmore, Swansea East, Swansea West 413,569 South Wales West Senedd region 2021.svg

Senedd Constituencies And Electoral Regions Media

Related pages

References