Who won the Foyle constituency election in 2017?

Sinn Féin gained Foyle constituency at the 8 June 2017 General Election, taking the seat from Social Democratic and Labour Party. Sinn Féin won with a majority of 169 votes (0.4%). Turnout was 65.4%.

What was the swing in Foyle at the 2017 election?

The swing in Foyle was 5.6% from SDLP to SF — a significant shift towards SF. 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 Foyle in 2017 is shown in the statistics above.

SF GAIN from SDLP: Foyle — 2017 General Election Result

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SF GAIN from SDLP: Foyle — 2017 General Election Result | WIN326 — VPNews Elections

Sinn Féin gained Foyle constituency from Social Democratic and Labour Party on 8 June 2017. The Sinn Féin majority was 169 votes (0.4%). Turnout was 65.4%. The swing was 5.6% from SDLP to SF.

Previous Results — Foyle Constituency

Election	Winner	Majority	Turnout	Swing
4 July 2024 general	SDLP	4,166	52.2%	0.0%
12 December 2019 general	SDLP	17,110	63.4%	0.0%
7 May 2015 general

Frequently Asked Questions — Foyle Constituency

Who won the Foyle constituency election in 2017?: Sinn Féin gained Foyle constituency at the 8 June 2017 General Election, taking the seat from Social Democratic and Labour Party. Sinn Féin won with a majority of 169 votes (0.4%). Turnout was 65.4%.
What was the swing in Foyle at the 2017 election?: The swing in Foyle was 5.6% from SDLP to SF — a significant shift towards SF. 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 Foyle in 2017 is shown in the statistics above.