#1 Largest Private Schools in Braintree, MA
Archbishop Williams High School
Independent Catholic school · Grades 7–12
725 students
Braintree, MA
A-Overall grade725 students12 students per teacher
2026 lists
Largest Private Schools in Braintree, MA
The private schools in Braintree, MA with the most students. Top 6 of 6 schools.
#2 Largest Private Schools in Braintree, MA
Cats Academy
Independent school · Grades 8–12
352 students
Braintree, MA
AOverall grade352 students8 students per teacher
#3 Largest Private Schools in Braintree, MA
Meeting House Montessori School
Montessori school · Grades Pre-K–5
70 students
Braintree, MA
B+Overall grade70 students6 students per teacher
#4 Largest Private Schools in Braintree, MA
Granite Academy
Alternative school · Grades 7–12
47 students
Braintree, MA
B+Overall grade47 students5 students per teacher
#5 Largest Private Schools in Braintree, MA
North American Hockey Academy
Independent school · Grades 8–12
25 students
Braintree, MA
B+Overall gradeAll girls25 students10 students per teacher
#6 Largest Private Schools in Braintree, MA
St. Coletta Day School
Special education school · Ungraded
23 students
Braintree, MA
A-Overall grade23 students5 students per teacher
From official public records, updated October 2026.