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Data Provider: Welsh Government National Statistics Electoral roll: Electors and attainers, by Senedd Cymru constituency
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[Collapse]AreaNational Assembly for Wales consituency areas and electoral regions [Filter]
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Click here to sortTotal electorsElectors consists of residential qualifiers (entitled to vote at a Senedd Cymru election), and attainers, registered on the Electoral Roll on the date shown.Click here to sortTotal attainersAttainers are persons who attain the age of 18 (prior to 1 December 2020) or 16 (as at 1 December 2020) during the currency of the register for the date shown, and are entitled to vote at a Senedd Cymru election on or after their eighteenth or sixteenth birthday.  The numbers are included in the count of electors.
[Collapse]Wales2,342,47814,640
Wales[Collapse]North Wales477,2082,916
North Wales[Collapse]Ynys MônW0900000152,356350
[Collapse]ArfonW0900000241,493281
[Collapse]AberconwyW0900000344,731231
[Collapse]Clwyd WestW0900000457,718338
[Collapse]Vale of ClwydW0900000555,206344
[Collapse]DelynW0900000655,097344
[Collapse]Alyn and DeesideW0900000764,298372
[Collapse]WrexhamW0900000852,115326
[Collapse]Clwyd SouthW0900000954,194330
[Collapse]Mid and West Wales445,2972,498
Mid and West Wales[Collapse]Dwyfor MeirionnyddW0900001044,265222
[Collapse]MontgomeryshireW0900001149,481298
[Collapse]CeredigionW0900001256,634281
[Collapse]Brecon and RadnorshireThe data for this area does not take account of the Parliamentary Constituencies and Assembly Regions (Wales) (Amendment) Order 2011, in which very minor changes were made to the constituency boundary.  The changes in the numbers of electors as a result of these boundary changes are sufficiently minor to be treated as negligible for the purposes of any analysis.W0900004154,937278
[Collapse]Preseli PembrokeshireW0900001459,804334
[Collapse]Carmarthen East and DinefwrW0900001557,945342
[Collapse]Carmarthen West and South PembrokeshireW0900001660,110342
[Collapse]LlanelliW0900001762,121401
[Collapse]South Wales West411,1022,549
South Wales West[Collapse]GowerW0900001861,960470
[Collapse]Swansea WestW0900001956,992312
[Collapse]Swansea EastW0900002059,679348
[Collapse]NeathW0900002157,823349
[Collapse]AberavonW0900002252,107267
[Collapse]BridgendW0900002364,367425
[Collapse]OgmoreThe data for this area does not take account of the Parliamentary Constituencies and Assembly Regions (Wales) (Amendment) Order 2011, in which very minor changes were made to the constituency boundary.  The changes in the numbers of electors as a result of these boundary changes are sufficiently minor to be treated as negligible for the purposes of any analysis.W0900004558,174378
[Collapse]South Wales Central522,9264,256
South Wales Central[Collapse]RhonddaW0900002550,702262
[Collapse]Cynon ValleyW0900002651,738285
[Collapse]PontypriddThe data for this area does not take account of the Parliamentary Constituencies and Assembly Regions (Wales) (Amendment) Order 2011, in which very minor changes were made to the constituency boundary.  The changes in the numbers of electors as a result of these boundary changes are sufficiently minor to be treated as negligible for the purposes of any analysis.W0900004660,727386
[Collapse]Vale of GlamorganThe data for this area does not take account of the Parliamentary Constituencies and Assembly Regions (Wales) (Amendment) Order 2011, in which very minor changes were made to the constituency boundary.  The changes in the numbers of electors as a result of these boundary changes are sufficiently minor to be treated as negligible for the purposes of any analysis.W0900004778,4241,201
[Collapse]Cardiff WestW0900002969,168517
[Collapse]Cardiff NorthThe data for this area does not take account of the Parliamentary Constituencies and Assembly Regions (Wales) (Amendment) Order 2011, in which very minor changes were made to the constituency boundary.  The changes in the numbers of electors as a result of these boundary changes are sufficiently minor to be treated as negligible for the purposes of any analysis.W0900004268,531553
[Collapse]Cardiff CentralW0900003162,874368
[Collapse]Cardiff South and PenarthThe data for this area does not take account of the Parliamentary Constituencies and Assembly Regions (Wales) (Amendment) Order 2011, in which very minor changes were made to the constituency boundary.  The changes in the numbers of electors as a result of these boundary changes are sufficiently minor to be treated as negligible for the purposes of any analysis.W0900004380,762684
[Collapse]South Wales East485,9452,421
South Wales East[Collapse]Merthyr Tydfil and RhymneyThe data for this area does not take account of the Parliamentary Constituencies and Assembly Regions (Wales) (Amendment) Order 2011, in which very minor changes were made to the constituency boundary.  The changes in the numbers of electors as a result of these boundary changes are sufficiently minor to be treated as negligible for the purposes of any analysis.W0900004457,557204
[Collapse]MonmouthW0900003466,959337
[Collapse]CaerphillyW0900003564,535352
[Collapse]IslwynW0900003656,706312
[Collapse]TorfaenW0900003763,020352
[Collapse]Blaenau GwentW0900003850,574222
[Collapse]Newport WestW0900003966,959336
[Collapse]Newport EastW0900004059,635306

Metadata

General description

This dataset shows the number of people who were registered on the electoral roll on the date shown to vote at a Senedd Cymru election, and the number of attainers. An attainer is a person who attains the age of 18 (prior to 1 December 2020) or 16 (from 1 December 2020) during the currency of the register, and is entitled to vote at a Senedd election on or after his or her eighteenth or sixteenth birthday.

To make sure that the electoral register was as complete and accurate as possible ahead of the introduction of Individual Electoral Registration (IER) in summer 2014, the annual publication of electoral registers in Great Britain, normally due on 1 December 2013, was delayed until spring 2014. Electoral registers were published on 10 March 2014 in Wales.

The data are based on the Senedd constituency boundaries which came into effect at the elections on 3 May 2007 with subsequent changes as a result of local government boundary changes in seven areas under the Parliamentary Constituencies and Assembly Regions (Wales) (Amendment) Order 2011. The Order did not make the same changes to the boundaries of the Westminster parliamentary constituencies and came into effect on 14 December 2011 so from this point onwards there are some differences between the Westminster parliamentary constituencies and the Senedd constituencies. This also means that for some constituencies, the data for 2012 onwards is not consistent with data for previous years. These areas are marked in the data.

Note that entitlement to vote is different for Senedd and Westminster parliamentary elections. EU citizens resident in Wales are entitled to vote at Senedd (and local government elections) but not at Westminster Parliamentary elections, for example.

The Senedd and Election (Wales) Act 2020 made provisions to lower the voting age in Senedd Elections to 16, meaning that 16 and 17 year olds were able to vote for the first time at the Senedd Elections in 2021.

The Local Government and Elections (Wales) Act 2021 made provisions to lower the voting age for local government elections to allow 16 and 17 year olds to vote.

The number of Senedd Cymru and local government electors and attainers as at 1 December 2020 therefore includes 16 and 17 year olds registered to vote, for the first time. Data for previous years do not include 16 and 17 year olds.

This material is Crown Copyright and may be re-used (not including logos) free of charge in any format or medium, under the terms of the Open Government Licence.


Data collection and calculation

Data are collected by local authorities as part of an annual voter canvas. The results are then collated and published by constituency area by the Office for National Statistics.

Frequency of publication

Annual

Data reference periods

Data are produced and reported annually and usually relate to the 1 December each year.

In 2012, the annual voter canvass was conducted early and the publication of the electoral roll brought forward to 16 October to allow for the Police and Crime Commissioners (PCC) elections for England and Wales held in November 2012.

To make sure that the electoral register was as complete and accurate as possible ahead of the introduction of Individual Electoral Registration (IER) in summer 2014, the annual publication of electoral registers in Great Britain, normally due on 1 December 2013, was delayed until spring 2014. Electoral registers were published on 10 March 2014 in Wales.

Electoral registers collected as at 2 March 2020 have been produced to support the Parliamentary Constituency Boundary review due to finish in July 2023.

Users, uses and context

The data are used to estimate the electoral size of each of the Senedd Cymru constituencies and to support any research that may be conducted ahead of relevant elections.

The principal users of these data will be Senedd Research in Senedd Cymru (in supporting all constituency and regional Members of the Senedd or MS); individual MS and their researchers; Welsh Ministers and their private office staff; the media; press and policy officials in the Welsh Government; students, academics and universities; and citizens, private companies, and other interested individuals.

Rounding applied

No rounding is applied to the data.

Revisions information

Revisions to the 2016 and 2017 data were made in April 2019 as data previously showed UK Parliamentary electors. The data now shows Senedd Cymru and local government electors to be consistent with previous years.

Title

Electoral registers by Senedd Cymru constituency areas and electoral regions

Last update

May 2021 May 2021

Next update

To be announced

Publishing organisation

Welsh Government

Source 1

UK Electoral Statistics, Office for National Statistics

Contact email

stats.popcensus@gov.wales

Designation

National Statistics

Lowest level of geographical disaggregation

National Assembly for Wales constituencies

Geographical coverage

Wales

Languages covered

English and Welsh

Data licensing

You may use and re-use this data free of charge in any format or medium, under the terms of the Open Government License - see http://www.nationalarchives.gov.uk/doc/open-government-licence

Statistical quality

See weblinks

Keywords

Electoral rolls; electoral register wales; voters; Electoral registered Statistics; Senedd Cymru elections;