St. Mark's School

Southborough, Massachusetts · Day and boarding · Co-ed · Grades 9–12

St. Mark's School is a coeducational Episcopal boarding and day school in Southborough, Massachusetts, founded in 1865 by Joseph Burnett. It enrolls about 372 students in grades 9–12 (Forms III–VI), around three-quarters of whom board, on a 210-acre campus west of Boston. About 84 students, roughly 23%, are international. The student-faculty ratio is 6:1. International applicants complete a Vericant interview first, submit the SSAT and TOEFL or IELTS, and are usually admitted to grades 9 or 10; there is no grade 12 or postgraduate entry.

• Episcopal coeducational boarding school founded in 1865
• About 75% of students board
• Student-faculty ratio 6:1, average class size 11
• 210-acre campus about 25 miles west of Boston
• Duolingo not accepted; TOEFL minimum 105 (5.5 on the new scale)