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.[1] 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[2] 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.
See also: 2024 United Kingdom general election in Wales.
| Constituency | Electorate[3] | Majority[4] | Member of Parliament | Nearest opposition | Map | |||
|---|---|---|---|---|---|---|---|---|
| 50,750 | 10,490 | Stephen Kinnock‡ | Charlotte Lang† | |||||
| 44,699 | 2,034 | Robin Millar† | Emily Owen ‡ | |||||
| 62,789 | 213 | Mark Tami‡ | Sanjoy Sen† | |||||
| 42,215 | 2,781 | bgcolor= | Hywel Williams₪ | Steffie Williams Roberts‡ | ||||
| 50,739 | 8,647 | Nick Smith‡ | Richard Taylor* | |||||
| 55,490 | 7,131 | Fay Jones† | Jane Dodds¤ | |||||
| 63,303 | 1,157 | Jamie Wallis† | Madeleine Moon‡ | |||||
| 63,166 | 6,833 | Wayne David‡ | Jane Pratt† | |||||
| 64,037 | 17,179 | Jo Stevens‡ | Meirion Jenkins† | |||||
| 68,438 | 6,982 | Anna McMorrin‡ | Mo Ali† | |||||
| 78,837 | 12,737 | Stephen Doughty‡ | Philippa Broom† | |||||
| 68,508 | 10,986 | Kevin Brennan‡ | Carolyn Webster† | |||||
| Carmarthen East and Dinefwr | 57,419 | 1,809 | Jonathan Edwards¢ | David Darkin‡ | ||||
| Carmarthen West and South Pembrokeshire | 59,158 | 7,745 | Simon Hart† | Marc Tierney‡ | ||||
| Ceredigion | 56,250 | 6,329 | Ben Lake₪ | Amanda Jenner† | ||||
| Clwyd South | 53,919 | 1,239 | Simon Baynes† | Susan Elan Jones‡ | ||||
| Clwyd West | 57,714 | 6,747 | David Jones† | Jo Thomas‡ | ||||
| Cynon Valley | 51,134 | 8,822 | Beth Winter‡ | Pauline Church† | ||||
| Delyn | 54,560 | 865 | Rob Roberts¢ | David Hanson‡ | ||||
| Dwyfor Meirionnydd | 44,362 | 4,740 | Liz Saville-Roberts₪ | Tomos Davies† | ||||
| Gower | 61,762 | 1,837 | Tonia Antoniazzi‡ | Francesca O'Brien† | ||||
| Islwyn | 55,423 | 5,464 | Christopher James Evans‡ | Gavin Chambers† | ||||
| Llanelli | 60,518 | 4,670 | Nia Griffith‡ | Tamara Reay† | ||||
| Merthyr Tydfil and Rhymney | 56,322 | 10,606 | Gerald Jones‡ | Sara Jones† | ||||
| Monmouth | 67,098 | 9,982 | David Davies† | Yvonne Murphy‡ | ||||
| Montgomeryshire | 48,997 | 12,138 | Craig Williams† | Kishan Devani¤ | ||||
| Neath | 56,419 | 5,637 | Christina Rees‡ | Jon Burns† | ||||
| Newport East | 58,554 | 1,992 | Jessica Morden‡ | Mark Brown† | ||||
| Newport West | 66,657 | 902 | Ruth Jones‡ | Matthew Evans† | ||||
| Ogmore | 57,581 | 7,805 | Chris Elmore‡ | Sadie Vidal† | ||||
| Pontypridd | 60,327 | 5,887 | Alex Davies-Jones‡ | Sam Trask† | ||||
| Preseli Pembrokeshire | 59,606 | 5,062 | Stephen Crabb† | Philippa Thompson‡ | ||||
| Rhondda | 50,262 | 11,440 | Chris Bryant‡ | Hannah Jarvis | ||||
| Swansea East | 58,450 | 11,440 | Carolyn Harris‡ | Denise Howard† | ||||
| Swansea West | 57,078 | 8,116 | Geraint Davies₵ | James Price† | ||||
| Torfaen | 62,330 | 3,742 | Nick Thomas-Symonds‡ | Graham Smith† | ||||
| Vale of Clwyd | 56,649 | 1,827 | James Davies† | Chris Ruane‡ | ||||
| Vale of Glamorgan | 76,508 | 3,562 | Alun Cairns† | Belinda Loveluck-Edwards‡ | ||||
| Wrexham | 49,737 | 2,131 | Sarah Atherton† | Mary Wimbury‡ | ||||
| Ynys Môn (Anglesey) | 51,925 | 1,968 | Virginia Crosbie† | Mary Roberts‡ | ||||
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.[5] Subsequently, the Parliamentary Constituencies Act 2020[6] 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.
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.
The final recommendations on the new constituencies in Wales were published on 28 June 2023 by the Boundary Commission for Wales.[7] This followed years of proposals and consultations since 2021, with initial proposals published in 2021 and revised in 2022.[8]
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).
| -- collapsed -->" | +List of recommended constituencies[9] | Recommended constituency (Welsh name) | Electorate (2023) | Area (km2) | Electoral wards from | Status | Notes | |
|---|---|---|---|---|---|---|---|---|
| Previous constituency | Principal area | |||||||
| Aberafan Maesteg | 69,817 | 397 | Bridgend (part) | Bridgend | New constituency | |||
| Ogmore (part) | Bridgend | |||||||
| Aberavon (part) | Neath Port Talbot | |||||||
| Neath (part) | Neath Port Talbot | |||||||
| Alyn and Deeside Welsh: Alun a Glannau Dyfrdwy | 75,695 | 205 | Alyn and Deeside (all) | Flintshire | Expanded constituency | |||
| Delyn (part) | Flintshire | |||||||
| Bangor Aberconwy | 70,468 | 1,435 | Aberconwy (all) | Conwy | New constituency | |||
| Clwyd West (part) | Conwy | |||||||
| Clwyd West (part) | Denbighshire | |||||||
| Arfon (part) | Gwynedd | |||||||
| Blaenau Gwent and Rhymney Welsh: Blaenau Gwent a Rhymni | 71,079 | 166 | Blaenau Gwent (all) | Blaenau Gwent | New constituency | |||
| Merthyr Tydfil and Rhymney (part) | Caerphilly | |||||||
| Islwyn (part) | Caerphilly | |||||||
| Caerphilly (part) | Caerphilly | |||||||
| Brecon, Radnor and Cwm Tawe Welsh: Aberhonddu, Maesyfed a Chwm Tawe | 72,113 | 3,090 | Brecon and Radnorshire (all) | Powys | New constituency | |||
| Neath (part) | Neath Port Talbot | |||||||
| Bridgend Welsh: Pen-y-bont | 70,770 | 124 | Bridgend (part) | Bridgend | Redefined constituency | |||
| Ogmore (part) | Bridgend | |||||||
| Caerfyrddin | 72,683 | 2,034 | Carmarthen East and Dinefwr (part) | Carmarthenshire | Revived constituency | Previously existed 1542–1997 under its English name "Carmarthen". | ||
| Carmarthen West and South Pembrokeshire (part) | Carmarthenshire | |||||||
| Caerphilly Welsh: Caerffili | 72,458 | 140 | Caerphilly (part) | Caerphilly | Redefined constituency | |||
| Islwyn (part) | Caerphilly | |||||||
| Cardiff East Welsh: Dwyrain Caerdydd | 72,463 | 33 | Cardiff Central (part) | Cardiff | Revived constituency | Name restored; previously existed 1918–1950. | ||
| Cardiff South and Penarth (part) | Cardiff | |||||||
| Cardiff North Welsh: Gogledd Caerdydd | 71,143 | 49 | Cardiff North (all) | Cardiff | Expanded constituency | |||
| Pontypridd (part) | Rhondda Cynon Taf | |||||||
| Cardiff South and Penarth Welsh: De Caerdydd a Phenarth | 72,269 | 60 | Cardiff South and Penarth (part) | Cardiff | Redefined constituency | |||
| Cardiff Central (part) | Cardiff | |||||||
| Cardiff South and Penarth (part) | Vale of Glamorgan | |||||||
| Vale of Glamorgan (part) | Vale of Glamorgan | |||||||
| Cardiff West Welsh: Gorllewin Caerdydd | 73,947 | 63 | Cardiff West (all) | Cardiff | Expanded constituency | |||
| Pontypridd (part) | Rhondda Cynon Taf | |||||||
| Ceredigion Preseli | 74,063 | 2,458 | Ceredigion (all) | Ceredigion | New constituency | |||
| Preseli Pembrokeshire (part) | Pembrokeshire | |||||||
| Clwyd East Welsh: Dwyrain Clwyd | 76,395 | 676 | Clwyd West (part) | Denbighshire | New constituency | |||
| Clwyd South (part) | Denbighshire | |||||||
| Vale of Clwyd (part) | Denbighshire | |||||||
| Delyn (part) | Flintshire | |||||||
| Clwyd South (part) | Wrexham | |||||||
| Clwyd North Welsh: Gogledd Clwyd | 76,150 | 170 | Clwyd West (part) | Conwy | New constituency | |||
| Vale of Clwyd (part) | Denbighshire | |||||||
| Dwyfor Meirionnydd | 72,533 | 2,613 | Clwyd South (part) | Denbighshire | Expanded constituency | |||
| Dwyfor Meirionnydd (all) | Gwynedd | |||||||
| Arfon (part) | Gwynedd | |||||||
| Gower Welsh: Gŵyr | 76,801 | 345 | Gower (part) | Swansea | Redefined constituency | |||
| Swansea West (part) | Swansea | |||||||
| Llanelli | 69,895 | 397 | Llanelli (all) | Carmarthenshire | Expanded constituency | |||
| Carmarthen East and Dinefwr (part) | Carmarthenshire | |||||||
| Merthyr Tydfil and Aberdare Welsh: Merthyr Tudful ac Aberdâr | 74,805 | 245 | Merthyr Tydfil and Rhymney (part) | Merthyr Tydfil (all) | New constituency | |||
| Cynon Valley (part) | Rhondda Cynon Taf | |||||||
| Mid and South Pembrokeshire Welsh: Canol a De Sir Benfro | 76,820 | 985 | Preseli Pembrokeshire (part) | Pembrokeshire | New constituency | |||
| Carmarthen West and South Pembrokeshire (part) | Pembrokeshire | |||||||
| Monmouthshire Welsh: Sir Fynwy | 72,681 | 884 | Monmouth (part) | Monmouthshire (all) | Revived constituency | Name restored; previously existed 1536–1885. | ||
| Newport East (part) | Monmouthshire (all) | |||||||
| Montgomeryshire and Glyndŵr Welsh: Maldwyn a Glyndŵr | 74,223 | 2,379 | Montgomeryshire (all) | Powys | New constituency | |||
| Clwyd South (part) | Wrexham | |||||||
| Neath and Swansea East Welsh: Castell-nedd a Dwyrain Abertawe | 74,705 | 219 | Aberavon (part) | Neath Port Talbot | New constituency | |||
| Neath (part) | Neath Port Talbot | |||||||
| Gower (part) | Swansea | |||||||
| Swansea East (part) | Swansea | |||||||
| Newport East Welsh: Dwyrain Casnewydd | 76,159 | 142 | Newport East (part) | Newport | Redefined constituency | |||
| Newport West (part) | Newport | |||||||
| Newport West and Islwyn Welsh: Gorllewin Casnewydd ac Islwyn | 76,234 | 154 | Newport West (part) | Newport | New constituency | |||
| Islwyn (part) | Caerphilly | |||||||
| Pontypridd | 73,743 | 141 | Cynon Valley (part) | Rhondda Cynon Taf | Redefined constituency | |||
| Ogmore (part) | Rhondda Cynon Taf | |||||||
| Pontypridd (part) | Rhondda Cynon Taf | |||||||
| Rhondda and Ogmore Welsh: Rhondda ac Ogwr | 73,557 | 199 | Ogmore (part) | Bridgend | New constituency | |||
| Ogmore (part) | Rhondda Cynon Taf | |||||||
| Pontypridd (part) | Rhondda Cynon Taf | |||||||
| Rhondda (all) | Rhondda Cynon Taf | |||||||
| Swansea West Welsh: Gorllewin Abertawe | 74,612 | 35 | Swansea East (part) | Swansea | Redefined constituency | |||
| Swansea West (part) | Swansea | |||||||
| Torfaen | 70,591 | 126 | Torfaen (all) | Torfaen (all) | Expanded constituency | |||
| Monmouth (part) | Torfaen (all) | |||||||
| Vale of Glamorgan Welsh: Bro Morgannwg | 70,426 | 301 | Vale of Glamorgan (part) | Vale of Glamorgan | Redefined constituency | |||
| Wrexham Welsh: Wrecsam | 70,964 | 292 | Clwyd South (part) | Wrexham | Expanded constituency | |||
| Wrexham (all) | Wrexham | |||||||
| Ynys Môn | 52,415 | 746 | Ynys Môn (all) | Isle of Anglesey (all) | Constituency not subject to the statutory UK electoral quota. | |||
The number of votes cast for each political party who fielded candidates in constituencies in Wales at the 2024 general election were as follows:[10]
| Party | Votes | % | Change from 2019 | Seats | Change from 2019 (actual) | Change from 2019 (notional) | |
|---|---|---|---|---|---|---|---|
| Labour | 487,636 | 37.0 | 3.9 | 27 | 5 | 9 | |
| Conservative | 240,003 | 18.2 | 17.9 | 0 | 14 | 12 | |
| Reform UK | 223,018 | 16.9 | 11.5 | 0 | 0 | 0 | |
| Plaid Cymru | 194,811 | 14.7 | 4.8 | 4 | 0 | 2 | |
| Liberal Democrats | 85,911 | 6.5 | 0.5 | 1 | 1 | 1 | |
| Green | 61,662 | 4.7 | 3.7 | 0 | 0 | 0 | |
| Others | 26,035 | 2.0 | 1.3 | 0 | 0 | 0 | |
| Total | 1,319,076 | 100.0 | 32 | 8 |
Primary data source: House of Commons research briefing – General election results from 1918 to 2019 (2024 as above)
Key:
Key:
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.
Two by-elections were held in 2019: