Frequently Asked Questions — North Ayrshire and Arran Constituency

Who won the North Ayrshire and Arran constituency election in 2019?

Scottish National Party gained North Ayrshire and Arran constituency at the 12 December 2019 General Election, taking the seat from Labour. Scottish National Party won with a majority of 8,521 votes (17.7%). Turnout was 65.5%.

What was the swing in North Ayrshire and Arran at the 2019 election?

The swing in North Ayrshire and Arran was 21.5% from LAB to SNP — a modest shift towards SNP. 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 North Ayrshire and Arran in 2019 is shown in the statistics above.