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List of UK Parliament constituencies in Wales

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List of UK Parliament constituencies in Wales

Summary

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2024 election]] coloured by party colour of MP elected.

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Wales is divided into thirty-two constituencies of the Parliament of the United Kingdom, which elect Members of Parliament to the House of Commons.

At the 2024 United Kingdom general election in Wales, 27 Labour MPs, 4 Plaid Cymru MPs and 1 Liberal Democrat MP were elected. The Conservative Party lost all of their 13 MPs in Wales.

This is a decrease from forty constituencies, last used in the general election of December 2019 which had resulted in 22 of the Welsh constituencies being represented by Labour MPs, 14 by Conservative MPs, and 4 by Plaid Cymru MPs. The number of constituencies was reduced from 40 to 32, as part of the 2023 Periodic Review of Westminster constituencies, in which the Boundary Commission for Wales set the boundaries of the new constituencies, following a process starting in 2021 and concluding on 28 June 2023 when the final recommendations were published by the commission.

Until 2026, the devolved Senedd will continue using 40 constituencies as in the previous UK Parliament, but would later replace them with 16 Senedd constituencies comprising pairings of the 32 UK Parliament constituencies.

Constituencies since 2024

border=1px solid #aaaaaa}}
ConstituencyElectorateMajorityMember of ParliamentNearest oppositionMap
Aberafan Maesteg72,46710,354Labour Party (UK)}}Stephen Kinnock‡Reform UK}}
Alyn and Deeside75,7858,794Labour Party (UK)}}Mark Tami‡Reform UK}}
Bangor Aberconwy69,0264,896Labour Party (UK)}}Claire Hughes‡Plaid Cymru}}
Blaenau Gwent and Rhymney71,07912,183Labour Party (UK)}}Nick Smith‡Plaid Cymru}}
Brecon, Radnor and Cwm Tawe73,1141,472Liberal Democrats}}David Chadwick¤Conservative Party}}
Bridgend73,1528,595Labour Party (UK)}}Chris Elmore‡Reform UK}}
Caerfyrddin74,0034,535Plaid Cymru}}Ann Davies₪Labour Party (UK)}}
Caerphilly74,8786,419Labour Party (UK)}}Chris Evans‡Plaid Cymru}}
Cardiff East72,8739,097Labour Party (UK)}}Jo Stevens‡Liberal Democrats}}
Cardiff North71,33511,207Labour Party (UK)}}Anna McMorrin‡Conservative Party}}
Cardiff South and Penarth72,61311,767Labour Party (UK)}}Stephen Doughty‡Green Party of England and Wales}}
Cardiff West75,4737,019Labour Party (UK)}}Alex Barros-Curtis‡Plaid Cymru}}
Ceredigion Preseli74,09414,789Plaid Cymru}}Ben Lake₪Liberal Democrats}}
Clwyd East76,6374,622Labour Party (UK)}}Becky Gittins‡Conservative Party}}
Clwyd North76,1501,196Labour Party (UK)}}Gill German‡Conservative Party}}
Dwyfor Meirionnydd72,53315,876Plaid Cymru}}Liz Saville Roberts₪Labour Party (UK)}}
Gower75,50411,567Labour Party (UK)}}Tonia Antoniazzi‡Conservative Party}}
Llanelli71,5361,504Labour Party (UK)}}Nia Griffith‡Reform UK}}
Merthyr Tydfil and Aberdare74,8057,627Labour Party (UK)}}Gerald Jones‡Reform UK}}
Mid and South Pembrokeshire79,0311,878Labour Party (UK)}}Henry Tufnell‡Conservative Party}}
Monmouthshire73,5003,338Labour Party (UK)}}Catherine Fookes‡Conservative Party}}
Montgomeryshire and Glyndŵr74,0393,815Labour Party (UK)}}Steve Witherden‡Reform UK}}
Neath and Swansea East76,3476,627Labour Party (UK)}}Carolyn Harris‡Reform UK}}
Newport East76,6839,009Labour Party (UK)}}Jessica Morden‡Reform UK}}
Newport West and Islwyn75,7818,868Labour Party (UK)}}Ruth Jones‡Reform UK}}
Pontypridd75,0308,402Labour Party (UK)}}Alex Davies-Jones‡Reform UK}}
Rhondda and Ogmore73,9607,790Labour Party (UK)}}Chris Bryant‡Reform UK}}
Swansea West73,1168,515Labour Party (UK)}}Torsten Bell‡Reform UK}}
Torfaen71,5517,322Labour Party (UK)}}Nick Thomas-Symonds‡Reform UK}}
Vale of Glamorgan74,3744,216Labour Party (UK)}}Kanishka Narayan‡Conservative Party}}
Wrexham69,5445,948Labour Party (UK)}}Andrew Ranger‡Conservative Party}}
Ynys Môn53,137637Plaid Cymru}}Llinos Medi₪Conservative Party}}

Constituencies until 2024

ConstituencyElectorateMajorityMember of ParliamentNearest oppositionMap
Aberavon50,75010,490Labour Party (UK)}}"Stephen Kinnock‡Conservative Party (UK)}}"
Aberconwy44,6992,034Conservative Party (UK)}}"Robin Millar†Labour Party (UK)}}"
Alyn and Deeside62,789213Labour Party (UK)}}"Mark Tami‡Conservative Party (UK)}}"
Arfon42,2152,781Plaid Cymru}}Hywel Williams₪Labour Party (UK)}}"
Blaenau Gwent50,7398,647Labour Party (UK)}}"Nick Smith‡The Brexit Party}}"
Brecon and Radnorshire55,4907,131Conservative Party (UK)}}"Fay Jones†Liberal Democrats (UK)}}"
Bridgend63,3031,157Conservative Party (UK)}}"Jamie Wallis†Labour Party (UK)}}"
Caerphilly63,1666,833Labour Party (UK)}}"Wayne David‡Conservative Party (UK)}}"
Cardiff Central64,03717,179Labour Party (UK)}}"Jo Stevens‡Conservative Party (UK)}}"
Cardiff North68,4386,982Labour Party (UK)}}"Anna McMorrin‡Conservative Party (UK)}}"
Cardiff South and Penarth78,83712,737Labour Party (UK)}}"Stephen Doughty‡Conservative Party (UK)}}"
Cardiff West68,50810,986Labour Party (UK)}}"Kevin Brennan‡Conservative Party (UK)}}"
Carmarthen East and Dinefwr57,4191,809Independent}}Jonathan Edwards¢Labour Party (UK)}}"
Carmarthen West and South Pembrokeshire59,1587,745Conservative Party (UK)}}"Simon Hart†Labour Party (UK)}}"
Ceredigion56,2506,329Plaid Cymru}}Ben Lake₪Conservative Party (UK)}}"
Clwyd South53,9191,239Conservative Party (UK)}}"Simon Baynes†Labour Party (UK)}}"
Clwyd West57,7146,747Conservative Party (UK)}}"David Jones†Labour Party (UK)}}"
Cynon Valley51,1348,822Labour Party (UK)}}"Beth Winter‡Conservative Party (UK)}}"
Delyn54,560865Independent}}"Rob Roberts¢Labour Party (UK)}}"
Dwyfor Meirionnydd44,3624,740Plaid Cymru}}Liz Saville-Roberts₪Conservative Party (UK)}}"
Gower61,7621,837Labour Party (UK)}}"Tonia Antoniazzi‡Conservative Party (UK)}}"
Islwyn55,4235,464Labour Party (UK)}}"Christopher James Evans‡Conservative Party (UK)}}"
Llanelli60,5184,670Labour Party (UK)}}"Nia Griffith‡Conservative Party (UK)}}"
Merthyr Tydfil and Rhymney56,32210,606Labour Party (UK)}}"Gerald Jones‡Conservative Party (UK)}}"
Monmouth67,0989,982Conservative Party (UK)}}"David Davies†Labour Party (UK)}}"
Montgomeryshire48,99712,138Conservative Party (UK)}}"Craig Williams†Liberal Democrats (UK)}}"
Neath56,4195,637Labour Party (UK)}}"Christina Rees‡Conservative Party (UK)}}"
Newport East58,5541,992Labour Party (UK)}}"Jessica Morden‡Conservative Party (UK)}}"
Newport West66,657902Labour Party (UK)}}"Ruth Jones‡Conservative Party (UK)}}"
Ogmore57,5817,805Labour Party (UK)}}"Chris Elmore‡Conservative Party (UK)}}"
Pontypridd60,3275,887Labour Party (UK)}}"Alex Davies-Jones‡Conservative Party (UK)}}"
Preseli Pembrokeshire59,6065,062Conservative Party (UK)}}"Stephen Crabb†Labour Party (UK)}}"
Rhondda50,26211,440Labour Party (UK)}}"Chris Bryant‡Conservative Party (UK)}}"
Swansea East58,45011,440Labour Party (UK)}}"Carolyn Harris‡Conservative Party (UK)}}"
Swansea West57,0788,116Independent politician}}"Geraint Davies₵Conservative Party (UK)}}"
Torfaen62,3303,742Labour Party (UK)}}"Nick Thomas-Symonds‡Conservative Party (UK)}}"
Vale of Clwyd56,6491,827Conservative Party (UK)}}"James Davies†Labour Party (UK)}}"
Vale of Glamorgan76,5083,562Conservative Party (UK)}}"Alun Cairns†Labour Party (UK)}}"
Wrexham49,7372,131Conservative Party (UK)}}"Sarah Atherton†Labour Party (UK)}}"
Ynys Môn (Anglesey)51,9251,968Conservative Party (UK)}}"Virginia Crosbie†Labour Party (UK)}}"

2023 boundary changes

Failed sixth periodic review

Under the terms of the Parliamentary Voting System and Constituencies Act 2011, the Sixth Periodic Review of Westminster Constituencies (the 2018 review) was based on reducing the total number of MPs from 650 to 600 and a strict electoral parity requirement that the electorate of all constituencies should be within a range of 5% either side of the electoral quota.

The Boundary Commission for Wales submitted their final proposals in respect of the Sixth Review in September 2018. Although the proposals were immediately laid before Parliament they were not brought forward by the Government for approval. Accordingly, they did not come into effect for the 2019 election which took place on 12 December 2019, and which was contested using the constituency boundaries in place since 2010.

On 24 March 2020, the Minister of State for the Cabinet Office, Chloe Smith, issued a written statement to Parliament setting out the Government's thinking with regard to parliamentary boundaries. Subsequently, the Parliamentary Constituencies Act 2020 was passed into law on 14 December 2020 which formally removed the duty to implement the 2018 review and set out the framework for future boundary reviews.

2023 periodic review

The Parliamentary Constituencies Act 2020 was passed in December 2020, and the publication of the most recent data of electorate sizes of constituencies on 5 January 2021, lead the Boundary Commission for Wales to begin its review of the parliamentary constituencies in Wales, with the commission required to publish its final recommendations for boundary changes by 1 July 2023. By December 2021, the commission published the responses collected during the consultation period, and then conducted a six-week 'secondary consultation. Unlike the previous periodic review, the total UK constituencies was kept at 650.

When proportionally dividing the total 2021 electoral population of the United Kingdom using a statutory formula between the constituent countries of the UK, it results in England having 543 constituencies, Scotland having 57, Wales having 32 and Northern Ireland with the remaining 18. Each constituency recommended to have no more than 77,062 electors and no less than 69,724. The figure from Wales is calculated to be 8 seats lower from the total constituencies used for the 2019 UK general election when there were 40 constituencies, the largest decrease of any UK country or region. Wales has one 'protected constituency' not subject to UK electoral quotas, Ynys Môn on the Isle of Anglesey, where boundary changes are not applied. The decrease in constituencies in Wales has been described by the commission to represent "the most significant change to Wales's constituencies in a century", and the commission has no control over the number of constituencies in Wales. The final proposal published by the commission no longer required parliamentary approval and the recommendations in the final report were implemented automatically, however the second consultation period allowed public hearing about the proposals. The commission stated that it tried wherever possible to use existing local government boundaries, such as those of existing constituencies and principal areas.

Final recommendations

Labelled map of the 32 new constituencies in Wales to be used from the 2024 UK general election.

The final recommendations on the new constituencies in Wales were published on 28 June 2023 by the Boundary Commission for Wales. This followed years of proposals and consultations since 2021, with initial proposals published in 2021 and revised in 2022.

Categorisation of status is purely based on the names used by the constituencies, if a new constituency largely overlaps with a previous one but was renamed, it is considered a new constituency.

New – Did not exist previously with either the name or boundaries.

Expanded – Keeps name but gains wards.

Redefined – Keeps name but with other altered boundaries.

Revived – Former constituency revived under the same name(s).

Recommended constituency
(Welsh name)Electorate
(2023)Area (km2)Electoral wards fromStatusNotesPrevious constituencyPrincipal area
Aberafan Maesteg69,817397Bridgend (part)BridgendNew constituency
Ogmore (part)Bridgend
Aberavon (part)Neath Port Talbot
Neath (part)Neath Port Talbot
Alyn and Deeside
Alun a Glannau Dyfrdwy75,695205Alyn and Deeside (all)FlintshireExpanded constituency
Delyn (part)Flintshire
Bangor Aberconwy70,4681,435Aberconwy (all)ConwyNew constituency
Clwyd West (part)Conwy
Clwyd West (part)Denbighshire
Arfon (part)Gwynedd
Blaenau Gwent and Rhymney
Blaenau Gwent a Rhymni71,079166Blaenau Gwent (all)Blaenau GwentNew constituency
Merthyr Tydfil and Rhymney (part)Caerphilly
Islwyn (part)Caerphilly
Caerphilly (part)Caerphilly
Brecon, Radnor and Cwm Tawe
Aberhonddu, Maesyfed a Chwm Tawe72,1133,090Brecon and Radnorshire (all)PowysNew constituency
Neath (part)Neath Port Talbot
Bridgend
Pen-y-bont70,770124Bridgend (part)BridgendRedefined constituency
Ogmore (part)Bridgend
Caerfyrddin72,6832,034Carmarthen East and Dinefwr (part)CarmarthenshireRevived constituencyPreviously existed 1542–1997 under its English name "Carmarthen".
Carmarthen West and South Pembrokeshire (part)Carmarthenshire
Caerphilly
Caerffili72,458140Caerphilly (part)CaerphillyRedefined constituency
Islwyn (part)Caerphilly
Cardiff East
Dwyrain Caerdydd72,46333Cardiff Central (part)CardiffRevived constituencyName restored; previously existed 1918–1950.
Cardiff South and Penarth (part)Cardiff
Cardiff North
Gogledd Caerdydd71,14349Cardiff North (all)CardiffExpanded constituency
Pontypridd (part)Rhondda Cynon Taf
Cardiff South and Penarth
De Caerdydd a Phenarth72,26960Cardiff South and Penarth (part)CardiffRedefined constituency
Cardiff Central (part)Cardiff
Cardiff South and Penarth (part)Vale of Glamorgan
Vale of Glamorgan (part)Vale of Glamorgan
Cardiff West
Gorllewin Caerdydd73,94763Cardiff West (all)CardiffExpanded constituency
Pontypridd (part)Rhondda Cynon Taf
Ceredigion Preseli74,0632,458Ceredigion (all)CeredigionNew constituency
Preseli Pembrokeshire (part)Pembrokeshire
Clwyd East
Dwyrain Clwyd76,395676Clwyd West (part)DenbighshireNew constituency
Clwyd South (part)Denbighshire
Vale of Clwyd (part)Denbighshire
Delyn (part)Flintshire
Clwyd South (part)Wrexham
Clwyd North
Gogledd Clwyd76,150170Clwyd West (part)ConwyNew constituency
Vale of Clwyd (part)Denbighshire
Dwyfor Meirionnydd72,5332,613Clwyd South (part)DenbighshireExpanded constituency
Dwyfor Meirionnydd (all)Gwynedd
Arfon (part)Gwynedd
Gower
Gŵyr76,801345Gower (part)SwanseaRedefined constituency
Swansea West (part)Swansea
Llanelli69,895397Llanelli (all)CarmarthenshireExpanded constituency
Carmarthen East and Dinefwr (part)Carmarthenshire
Merthyr Tydfil and Aberdare
Merthyr Tudful ac Aberdâr74,805245Merthyr Tydfil and Rhymney (part)Merthyr Tydfil (all)New constituency
Cynon Valley (part)Rhondda Cynon Taf
Mid and South Pembrokeshire
Canol a De Sir Benfro76,820985Preseli Pembrokeshire (part)PembrokeshireNew constituency
Carmarthen West and South Pembrokeshire (part)Pembrokeshire
Monmouthshire
Sir Fynwy72,681884Monmouth (part)Monmouthshire (all)Revived constituencyName restored; previously existed 1536–1885.
Newport East (part)Monmouthshire (all)
Montgomeryshire and Glyndŵr
Maldwyn a Glyndŵr74,2232,379Montgomeryshire (all)PowysNew constituency
Clwyd South (part)Wrexham
Neath and Swansea East
Castell-nedd a Dwyrain Abertawe74,705219Aberavon (part)Neath Port TalbotNew constituency
Neath (part)Neath Port Talbot
Gower (part)Swansea
Swansea East (part)Swansea
Newport East
Dwyrain Casnewydd76,159142Newport East (part)NewportRedefined constituency
Newport West (part)Newport
Newport West and Islwyn
Gorllewin Casnewydd ac Islwyn76,234154Newport West (part)NewportNew constituency
Islwyn (part)Caerphilly
Pontypridd73,743141Cynon Valley (part)Rhondda Cynon TafRedefined constituency
Ogmore (part)Rhondda Cynon Taf
Pontypridd (part)Rhondda Cynon Taf
Rhondda and Ogmore
Rhondda ac Ogwr73,557199Ogmore (part)BridgendNew constituency
Ogmore (part)Rhondda Cynon Taf
Pontypridd (part)Rhondda Cynon Taf
Rhondda (all)Rhondda Cynon Taf
Swansea West
Gorllewin Abertawe74,61235Swansea East (part)SwanseaRedefined constituency
Swansea West (part)Swansea
Torfaen70,591126Torfaen (all)Torfaen (all)Expanded constituency
Monmouth (part)Torfaen (all)
Vale of Glamorgan
Bro Morgannwg70,426301Vale of Glamorgan (part)Vale of GlamorganRedefined constituency
Wrexham
Wrecsam70,964292Clwyd South (part)WrexhamExpanded constituency
Wrexham (all)Wrexham
Ynys Môn52,415746Ynys Môn (all)Isle of Anglesey (all)Protected constituencyConstituency not subject to the statutory UK electoral quota.

2024 results

The number of votes cast for each political party who fielded candidates in constituencies in Wales at the 2024 general election were as follows:

PartyVotes%Change
from 2019SeatsChange from
2019 (actual)Change from
2019 (notional)LabourConservativeReform UKPlaid CymruLiberal DemocratsGreenOthersTotal
487,63637.03.92759
240,00318.217.901412
223,01816.911.5000
194,81114.74.8402
85,9116.50.5111
61,6624.73.7000
26,0352.01.3000
1,319,076100.0328

Results history

Primary data source: House of Commons research briefing – General election results from 1918 to 2019 (2024 as above)

Percentage votes

Wales votes %

Key:

  • CON – Conservative Party, including National Liberal Party up to 1966
  • LAB – Labour Party, including Labour and Co-operative Party
  • LIB – Liberal Party up to 1979; SDP-Liberal Alliance 1983 & 1987; Liberal Democrats from 1992
  • PC – Plaid Cymru
  • UKIP – UK Independence Party 2010 to 2017 (included in Other up to 2005 and from 2019)
  • REF - Reform UK (2019 - Brexit Party)
  • GRN – Green Party of England and Wales (included in Other up to 2005)

Seats

Wales seats won

Key:

  • CON – Conservative Party, including National Liberal Party up to 1966
  • LAB – Labour Party, including Labour and Co-operative Party
  • LIB – Liberal Party up to 1979; SDP-Liberal Alliance 1983 & 1987; Liberal Democrats from 1992
  • PC – Plaid Cymru
  • OTH – 1970 – Independent (S. O. Davies); 2005 – Independent (Peter Law)

Maps

File:WalesParliamentaryConstituency2010Results.svg|2010 File:WalesParliamentaryConstituency2015Results.svg|2015 File:Wales Parliamentary Constituency 2017 Results.svg|2017 File:Wales Parliamentary Constituency 201911 with affilation changes.svg|2019 by-elections File:Dec2019WalesConstituencies.png|December 2019 File:Jul2024WalesConstituencies.svg|2024

These are maps of the results of the last four general elections in Wales and changes in 2019 following a by-election and a change of affiliation.

  • Red represents the Labour Party's MPs.
  • Blue represents the Conservative Party's MPs.
  • Amber represents the Liberal Democrats' MPs.
  • Green represents Plaid Cymru's MPs.
  • Grey represents Independent MPs.

2019 by-elections

Two by-elections were held in 2019:

References

References

  1. "Wales 2019 results". [[BBC]].
  2. (2021-09-08). "Major changes to cut number of Welsh MPs published". BBC News.
  3. (28 January 2020). "General Election 2019: full results and analysis".
  4. (15 December 2019). "BBC Elections 2019 results".
  5. "Update: Strengthening Democracy:Written statement – HCWS183".
  6. "Parliamentary Constituencies Act 2020".
  7. "Wales' new parliamentary constituencies published".
  8. "Revised Proposals". [[Boundary Commission for Wales]].
  9. (28 June 2023). "2023 Review of Parliamentary Constituencies – The 2023 Review of Parliamentary Constituencies in Wales". [[Boundary Commission for Wales]].
  10. (26 July 2024). "General election 2024 results".
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