Who won the Lagan Valley constituency election in 2019?

Democratic Unionist Party gained Lagan Valley constituency at the 12 December 2019 General Election, taking the seat from Alliance Party. Democratic Unionist Party won with a majority of 6,499 votes (14.3%). Turnout was 60.0%.

What was the swing in Lagan Valley at the 2019 election?

The swing in Lagan Valley was 10.2% from ALL to DUP — a modest shift towards DUP. 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 Lagan Valley in 2019 is shown in the statistics above.

DUP GAIN from ALL: Lagan Valley — 2019 General Election Result

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DUP GAIN from ALL: Lagan Valley — 2019 General Election Result | WIN326 — VPNews Elections

Democratic Unionist Party gained Lagan Valley constituency from Alliance Party on 12 December 2019. The Democratic Unionist Party majority was 6,499 votes (14.3%). Turnout was 60.0%. The swing was 10.2% from ALL to DUP.

Previous Results — Lagan Valley Constituency

Election	Winner	Majority	Turnout	Swing
4 July 2024 general	ALLGAIN	2,959	59.7%	+10.2%
8 June 2017 general	DUPGAIN	19,229	62.1%	+27.2%

Frequently Asked Questions — Lagan Valley Constituency

Who won the Lagan Valley constituency election in 2019?: Democratic Unionist Party gained Lagan Valley constituency at the 12 December 2019 General Election, taking the seat from Alliance Party. Democratic Unionist Party won with a majority of 6,499 votes (14.3%). Turnout was 60.0%.
What was the swing in Lagan Valley at the 2019 election?: The swing in Lagan Valley was 10.2% from ALL to DUP — a modest shift towards DUP. 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 Lagan Valley in 2019 is shown in the statistics above.