Founded in 1922, this private boarding school and day school is housed on a 55-acre campus and accepts students in grades 7 through 12. The average class size at The Stony Brook School is 13 students and the 48 faculty members live on or around campus, forging a unique and close-knit community. Applicants are accepted based on transcripts from current and previous academic years, letters of recommendation from math and English teachers, SSAT results and interviews.