Groton School holds the rank #5 in the list of Best Private High Schools In America out of 4290 eligible schools. Groton School is a Episcopal School situated in GROTON city of MASSACHUSETTS state. There are total 380 students in the school. The student teacher ratio of Groton School is 4:1. There are total 182 days in a single academic year. The average school hours are 6.42 hours. The lowest grade teaching in the school is 8th grade & the highest grade teaching in the school is 12th grade. The school level is 2 Secondary (school has one or more of grades 7 12 and does not have any grade lower than 7th grade)..