 In April 2018, a vote of league representatives approved Burlington's request to leave following the 2018-2019 school year and join the Southeast Conference, leaving the MAC with nine schools.In April 2019, principals from the remaining nine MAC schools voted to admit Central DeWitt, bringing the league back to 10 schools.Upon them joining the league in the fall of 2020, Central DeWitt would be the smallest public school in the conference—firmly Class 3A in a league of otherwise primarily Class 4A schools—with only Davenport Assumption having a smaller enrollment.