Result of voting by London borough. Red boroughs are those with a plurality of (first-preference) votes for Sadiq Khan and blue are those with a plurality for Zac Goldsmith.
The 2016 London mayoral election was held on 5 May 2016 to elect the next Mayor of London. It was the fifth London mayoral election. The sitting mayor of London Boris Johnson did not stand for re-election. The Conservative Party candidate was Zac Goldsmith[1] and the Labour Party candidate was Sadiq Khan.[2] In the election, Khan was elected mayor.
The election election used the supplementary vote system, which is where the voters choose a first and a second choice of candidates. After two rounds Khan was elected as Mayor.[3]