List of Parliamentary constituencies in Wales


is divided into forty Parliamentary constituencies which elect Members of Parliament to the House of Commons of the United Kingdom. After the General Election of December 2019, 22 of the Welsh constituencies are represented by Labour MPs, 14 by Conservative MPs, and 4 by Plaid Cymru MPs.
The same constituencies are used for elections to the Welsh Parliament. The same boundaries make up the National Assembly for Wales constituencies.

Constituencies

Proposed boundary changes

The Boundary Commission for Wales submitted their final proposals in respect of the Sixth Periodic Review of Westminster Constituencies 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.

Results history

Primary data source: House of Commons research briefing - General election results from 1918 to 2019

2019

The number of votes cast for each political party who fielded candidates in constituencies comprising Wales in the 2019 general election were as follows:
PartyVotes%Change from 2017SeatsChange from 2017
Labour632,03540.9%8.0%226
Conservative557,23436.1%2.5%146
Plaid Cymru153,2659.9%0.5%40
Liberal Democrats92,1716.0%1.5%00
Brexit83,9085.4%new00
Greens15,8281.0%0.7%00
Others9,9160.6%1.6%00
Total1,544,357100.040

Percentage votes

Key:
CON - Conservative Party, including National Liberal Party up to 1966
LAB - Labour Party
LIB - Liberal Party up to 1979; SDP-Liberal Alliance 1983 & 1987; Liberal Democrats from 1992
PC - Plaid Cymru
UKIP/Br - UK Independence Party 2010 to 2017 ; Brexit Party in 2019
Green - Green Party of England and Wales

Seats

CON - Conservative Party, including National Liberal Party up to 1966
LAB - Labour Party
LIB - Liberal Party up to 1979; SDP-Liberal Alliance 1983 & 1987; Liberal Democrats from 1992
OTH - 1970 - Independent ; 2005 - Independent
PC - Plaid Cymru

Maps

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: