 The school is a member of Alternative Organization Structure (AOS) 96.MMHS students are residents of Machias as well as the neighboring towns of Jonesboro, Marshfield, Northfield, Roque Bluffs, Wesley, Whitneyville, East Machias, Machiasport, Cutler, and Whiting.The school mascot is a bulldog, and the school colors are orange and black.