The preserved county of West Glamorgan is divided into five parliamentary constituencies: two borough constituencies and three county constituencies.
Constituencies NameCurrent boundaries Aberavon CC Gower CC Neath CC Swansea East BC Swansea West BC
The current boundaries have been effective since the 2007 National Assembly for Wales election and the 2010 United Kingdom general election.The Parliamentary Constituencies and Assembly Electoral Regions (Wales) Order 2006, OPSI website The only change from the previous scheme was a minute realignment of the boundary between Gower and Neath far too small to show on the map.
ConstituencyElectorateMajorityMember of ParliamentNearest oppositionMap reference above Aberavon50,74710,490 Stephen Kinnock ‡ Charlotte Lang †1Gower61,7621,837 Tonia Antoniazzi ‡ Francesca O'Brien †2Neath56,4165,637 Christina Rees ‡ Jon Burns †3Swansea East58,4507,970 Carolyn Harris ‡ Denise Howard †4Swansea West57,0788,116 Geraint Davies ‡ James Price †5
Proposed boundary changes The Boundary Commission for Wales submitted their final proposals in respect of the Sixth Periodic Review of Westminster Constituencies (the 2018 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.
Under the terms of the Parliamentary Voting System and Constituencies Act 2011, the Sixth 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.
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. They propose to bring forward primary legislation to remove the statutory obligation to implement the 2018 Boundary Review recommendations, as well as set the framework for future boundary reviews in time for the next review which is due to begin in early 2021 and report no later than October 2023. It is proposed that the number of constituencies now remains at the current level of 650, rather than being reduced to 600, while retaining the requirement that the electorate should be no more than +/- 5% from the electoral quota.
Historical representation by party (whole of Glamorgan) A cell marked → (with a different colour background to the preceding cell) indicates that the previous MP continued to sit under a new party name.
1832 to 1885
Constituency183218351837184118475118525255185718591865186818741880Cardiff BoroughsNichollCoffinCrichton-Stuart→ReedGlamorganshireL. W. DillwynWyndham-QuinTylerH. Vivian→Talbot→Merthyr TydvilGuestBruce→RichardFothergillJamesSwansea BoroughsJ. VivianL. L. Dillwyn→
1885 to 1918
Constituency188518868788901892931895190004190609Jan 191010Dec 191015Cardiff District of BoroughsReedMacleanReed→GuestD. ThomasCrichton-StuartCoryGlamorganshire, EastA. ThomasC. EdwardsGlamorganshire, MidTalbotEvansGibbinsJ. H. EdwardsGlamorganshire, SouthA. WilliamsWyndham-QuinBrace→GowerYeoRandellJ. ThomasJ. Williams→Merthyr Tydfil (two MPs)RichardD. A. ThomasRees JonesJamesMorganHardieStantonRhonddaAbraham→→Swansea DistrictVivian→→W. WilliamsJonesT. WilliamsSwansea TownDillwynBurnieLlewellynNewnesMond
1918 to 1950
Constituency191819202122192219231924192931193132333419353839404245194546AberavonJ. EdwardsMacDonaldCoveAberdareStantonHallD. ThomasLlandaff & BarryCopeLloydMunroLakinUngoed-ThomasCaerphillyOnionsM. JonesN. EdwardsCardiff CentralGouldLougherBennett→G. ThomasCardiff EastSeagerLougherWebbKinloch-CookeEdmundsTemple-MorrisGriggMarquandCardiff SouthCoryHendersonH. EvansHendersonH. EvansCallaghanGowerJ. WilliamsGrenfellMerthyrRees JonesWallhead→→S. DaviesNeathJ. H. EdwardsJenkinsD. J. WilliamsOgmoreHartshornE. WilliamsJ. EvansPontypriddLewisT. JonesD. DaviesPearsonRhondda EastWatts-MorganMainwaringRhondda WestAbrahamJohnSwansea EastT. WilliamsMatthewsD. WilliamsMortSwansea WestMondSamuelRuncimanSamuelL. JonesP. Morris
1950 to 1983
Constituency19501951541955195963196419666768197072Feb 74Oct 747619798182AberavonCoveJ. MorrisAberdareD. ThomasProbertI. EvansBarry D. ReesGowerCaerphillyN. EdwardsA. EvansE. Davies→Cardiff WestG. Thomas→Cardiff N / Cardiff NW ('74)LlewellynBoxRowlandsRobertsCardiff SECallaghanGowerGrenfellI. DaviesWardellMerthyr TydfilS. Davies→RowlandsNeathD. J. WilliamsColemanOgmorePadleyPowellPontypriddPearsonJohnRhondda EastMainwaringE. DaviesRhondda W / Rhondda ('74)I. ThomasA. JonesSwansea EastMortMcBrideAndersonSwansea WestP. MorrisH. ReesA. WilliamsCardiff NorthGrist1moved to Gwent 1983
1983 to 2024 (16 seats)
Constituency1983841987899119921997200102200520101220151620172019222324AberavonMorrisFrancisKinnockCardiff S & PenarthCallaghanMichaelDoughtyCynon ValleyI. EvansClwydWinterM Tydfil & Rhymney 1RowlandsHavardG. JonesNeathColemanHainRees→→OgmorePowellIrranca-DaviesElmorePontypriddJohnHowellsO. SmithDavies-JonesRhonddaRogersBryantSwansea EastAndersonJamesHarrisSwansea WestA. WilliamsG. Davies→Cardiff WestTerlezkiMorganBrennanGowerWardellCatonB. DaviesAntoniazziBridgendHubbard-MilesGriffithsMoonWallisCardiff CentralGristOwen JonesWillottStevensCardiff NorthG. H. JonesMorganJ. EvansC. WilliamsMcMorrinVale of GlamorganGowerJ. SmithSweeneyJ. SmithCairns 1 partly in Gwent 1997–2024
2024 to present (13 seats)
Constituency2024Aberafan MaestegKinnockBridgendElmoreCardiff EastStevensCardiff NorthMcMorrinCardiff South and PenarthDoughtyCardiff WestBarros-CurtisGowerAntoniazziMerthyr Tydfil and AberdareJonesNeath and Swansea EastHarrisPontypriddDavies-JonesRhondda and OgmoreBryantSwansea WestBellVale of GlamorganNarayan
See also List of parliamentary constituencies in Wales
References