The House of Lords has amended the EU Referendum Bill to allow 16- and 17-year-olds to vote in the forthcoming EU referendum. The issue will now return to the Commons, but what difference would such an extension to the franchise make? Alan Renwick and Barney McCay examine the evidence.
The House of Lords yesterday voted by 293 to 211 to allow 16- and 17-year-olds to vote in the forthcoming EU referendum, meaning that the issue will return to the Commons. The Electoral Commission has said that if 16- to 18-year-olds are given the vote the referendum could be delayed by as much as 12 months. But how might it affect the referendum’s outcome? We cannot know for sure but by piecing together evidence from various sources we can develop some ballpark estimates.
How many extra electors?
The first question is how many extra eligible voters there would be if 16- and 17-year-olds entered the electorate. In 2014, there were 1,534,192 16- and 17-year-olds in the UK, while the number aged 18 or over was 50,909,098, putting 16- and 17-year-olds at 2.9 per cent of the 16+ population. The ONS estimates that this percentage will fall to 2.8 per cent by 2016.