Mackinac Island Public School is a K-12 school with an enrollment of fewer than 100 students. The elementary classes are divided so two grades are in each class (kindergarten/first and second/third). The middle school holds grades four through seven and also has two grades in each class (fourth/fifth and sixth/seventh). Two teachers split teaching duties with one teaching language arts and social studies classes while the other teaches math and science classes. The high school consists of grades eight through twelve. The average number of students in a class is about six.