Voter turnout during Michigan's 2018 midterms was the highest it's been in 56 years. The unofficial results released by the State of Michigan put 2018 turnout at 58% of registered voters. That stands in sharp contrast to 2014, when turnout was the lowest it had been in 24 years -- just 43% of registered voters.
Every county in Michigan saw an increase in turnout of at least seven percent between 2014 and 2018. The biggest change happened in Oceana, Grand Traverse, and Kent counties, with voter turnout increases of 23%, 19%, and 19%, respectively. It's also worth noting that Leelanau and Keweenaw counties held onto the top 2 spots for overall turnout from 2014 to 2018, although they reversed places.
The first interactive map below shows 2014 voter turnout by county. The second map shows 2018 turnout, and also contains nformation on percent change between the two years if you click on a county.