The former home of Lewistown Middle School, Lewistown Intermediate School was renovated and re-opened in 1989.  LIS now houses approximately 615 students, and a building staff of around 70 personnel. 

Third grade graduates from Buchanan, Highland, East Derry, Strodes and LES begin their intermediate careers here, and prepare to continue their educations at Mifflin County Middle School after completion of fifth grade.

Students are offered core academic courses, while also having the opportunity to be exposed to other disciplines including Music, Art, Computer Courses, and Physical Education.