It was founded in 1844 by Methodist leaders.
The Lower School in Forty Fort is a day school for students through eighth grade. The Upper School in Kingston offers day and boarding programs.
Total enrollment is 738 students. Forty percent of the high school population reside on campus. “Sem” serves students from 15 states and 17 countries.
The annual tuition is $44,900 for boarding students and $22,600 for day students. Fifty-two percent of students receive financial aid.