All 110 seats in the Michigan House of Representatives will be up for election in November. Republicans won a 63-47 majorities in 2014 and 2016, and a reduced 58-42 margin in 2018. There are 25 open seats, 12 held by Republicans and 13 held by democrats. There are 22 open due to term-limits, 1 just due to seeking another office, 1 due to death, and 1 pure retirement.
Democrats are hoping to take control of the state house. They may benefit from anti-Trump enthusiasm, particularly in suburban districts in Oakland County.
The following lists district number, current incumbent, geographic description, 2012, 2014, 2016, and 2018 state house results, 2012 Romney %, 2016 Trump % (if known), and political rating. The complete candidate list and recent fundraising numbers are available here: