Frequently Asked Questions — Carmarthen East and Dinefwr Constituency

Who won the Carmarthen East and Dinefwr constituency election in 2017?

Plaid Cymru held Carmarthen East and Dinefwr constituency at the 8 June 2017 General Election. Plaid Cymru won with a majority of 3,908 votes (9.5%). Turnout was 73.3%.

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 Carmarthen East and Dinefwr in 2017 is shown in the statistics above.