Column chart showing voter turnout rates in Chicago's recent mayoral elections in 2015, 2019 and 2023. In 2015, there was a 7% increase in turnout from the general election to the runoff. Conversely, in 2019, there was about a slight decrease in the number of voters who turned out for the runoff. This year, turnout in the two election rounds was about the same, with about 3% more voters casting ballots in the runoff.