Frequently Asked Questions — Merthyr Tydfil and Rhymney Constituency

Who won the Merthyr Tydfil and Rhymney constituency election in 2019?

Labour held Merthyr Tydfil and Rhymney constituency at the 12 December 2019 General Election. Labour won with a majority of 10,606 votes (32.9%). Turnout was 57.3%.

What does swing mean in UK elections?

Swing measures how much support has shifted between two parties compared to a previous election. The Butler swing formula — used in British election reporting since the 1950s — takes the average of the gain in the winner's vote share and the loss in the runner-up's. A 5% swing is considered large at ward level; anything above 10% is exceptional. The swing figure for Merthyr Tydfil and Rhymney in 2019 is shown in the statistics above.