Who won the Clwyd South constituency election in 2017?

Labour gained Clwyd South constituency at the 8 June 2017 General Election, taking the seat from Conservative. Labour won with a majority of 4,356 votes (11.6%). Turnout was 69.8%.

What was the swing in Clwyd South at the 2017 election?

The swing in Clwyd South was 7.5% from CON to LAB — a significant shift towards LAB. Swing is calculated using the Butler two-party formula: the average of the change in winner's vote share and the fall in the runner-up's vote share compared to the previous election here.

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 Clwyd South in 2017 is shown in the statistics above.

LAB GAIN from CON: Clwyd South — 2017 General Election Result

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LAB GAIN from CON: Clwyd South — 2017 General Election Result | WIN326 — VPNews Elections

Labour gained Clwyd South constituency from Conservative on 8 June 2017. The Labour majority was 4,356 votes (11.6%). Turnout was 69.8%. The swing was 7.5% from CON to LAB.

Previous Results — Clwyd South Constituency

Election	Winner	Majority	Turnout	Swing
12 December 2019 general	CONGAIN	1,239	67.3%	+7.5%
7 May 2015 general	LABGAIN	2,402	63.8%	+5.1%

Frequently Asked Questions — Clwyd South Constituency

Who won the Clwyd South constituency election in 2017?: Labour gained Clwyd South constituency at the 8 June 2017 General Election, taking the seat from Conservative. Labour won with a majority of 4,356 votes (11.6%). Turnout was 69.8%.
What was the swing in Clwyd South at the 2017 election?: The swing in Clwyd South was 7.5% from CON to LAB — a significant shift towards LAB. Swing is calculated using the Butler two-party formula: the average of the change in winner's vote share and the fall in the runner-up's vote share compared to the previous election here.
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 Clwyd South in 2017 is shown in the statistics above.