#18. Dana Hall School

·       Location: Wellesley, Massachusetts

·       Enrollment: 454 (6:1 student-to-teacher ratio)

·       Niche grade: A+

#17. St. Sebastian’s School

·       Location: Needham, Massachusetts

·       Enrollment: 380 (5:1 student-to-teacher ratio)

·       Niche grade: A+

#16. The Rivers School

·       Location: Weston, Massachusetts

·       Enrollment: 534 (6:1 student-to-teacher ratio)

·       Niche grade: A+

#15. Brooks School

·       Location: North Andover, Massachusetts

·       Enrollment: 341 (5:1 student-to-teacher ratio)

·       Niche grade: A+

#14. The Winsor School

·       Location: Boston, Massachusetts

·       Enrollment: 450 (6:1 student-to-teacher ratio)

·       Niche grade: A+

#13. British International School of Boston

·       Location: Boston (Jamaica Plain), Massachusetts- Enrollment: 543 (6:1 student to teacher ratio)

·       Niche grade: A+

#12. The Roxbury Latin School

·       Location: West Roxbury, Massachusetts

·       Enrollment: 309 (6:1 student-to-teacher ratio)

·       Niche grade: A+

#11. Buckingham Browne & Nichols School

·       Location: Cambridge, Massachusetts

·       Enrollment: 1,048 (7:1 student-to-teacher ratio)

·       Niche grade: A+

#10. Concord Academy

·       Location: Concord, Massachusetts

·       Enrollment: 416 (6:1 student-to-teacher ratio)

·       Niche grade: A+

#9. Belmont Hill School

·       Location: Belmont, Massachusetts

·       Enrollment: 465 (7:1 student-to-teacher ratio)

·       Niche grade: A+

#8. Milton Academy

·       Location: Milton, Massachusetts

·       Enrollment: 1,020 (6:1 student-to-teacher ratio)

·       Niche grade: A+

#7. St. Mark’s School

·       Location: Southborough, Massachusetts

·       Enrollment: 377 (5:1 student-to-teacher ratio)

·       Niche grade: A+

#6. Boston University Academy

·       Location: Boston, Massachusetts

·       Enrollment: 245 (12:1 student-to-teacher ratio)

·       Niche grade: A+

#5. Middlesex School

·       Location: Concord, Massachusetts

·       Enrollment: 426 (5:1 student-to-teacher ratio)

·       Niche grade: A+

#4. Noble and Greenough School

·       Location: Dedham, Massachusetts

·       Enrollment: 631 (5:1 student-to-teacher ratio)

·       Niche grade: A+

#3. Commonwealth School

·       Location: Boston, Massachusetts

·       Enrollment: 157 (5:1 student-to-teacher ratio)

·       Niche grade: A+

#2. Phillips Academy Andover

·       Location: Andover, Massachusetts

·       Enrollment: 1,187 (5:1 student-to-teacher ratio)

·       Niche grade: A+

#1. Groton School

·       Location: Groton, Massachusetts

·       Enrollment: 383 (4:1 student-to-teacher ratio)

·       Niche grade: A+