#1 Largest Private Schools in Norfolk County, MA
Dexter Southfield
Independent school · Grades Pre-K–12
1,038 students
Brookline, MA
A+Overall grade1,038 students5 students per teacher
2026 lists
Largest Private Schools in Norfolk County, MA
The private schools in Norfolk County, MA with the most students. Top 50 of 58 schools.
#2 Largest Private Schools in Norfolk County, MA
Milton Academy
Independent school · Grades K–12
1,030 students
Milton, MA
A+Overall grade1,030 students5 students per teacher
#3 Largest Private Schools in Norfolk County, MA
Xaverian Brothers High School
Independent Catholic school · Grades 7–12
966 students
Westwood, MA
BOverall gradeAll boys966 students15 students per teacher
#4 Largest Private Schools in Norfolk County, MA
Archbishop Williams High School
Independent Catholic school · Grades 7–12
725 students
Braintree, MA
A-Overall grade725 students12 students per teacher
#5 Largest Private Schools in Norfolk County, MA
The Park School
Independent school · Grades Pre-K–8
533 students
Brookline, MA
B+Overall grade533 students8 students per teacher
#6 Largest Private Schools in Norfolk County, MA
Beaver Country Day School
Independent school · Grades 6–12
500 students
Chestnut Hill, MA
AOverall grade500 students7 students per teacher
#7 Largest Private Schools in Norfolk County, MA
Dana Hall School
Independent school · Grades 5–12
462 students
Wellesley, MA
B+Overall gradeAll girls462 students8 students per teacher
#8 Largest Private Schools in Norfolk County, MA
St. Sebastians School
Independent Catholic school · Grades 7–12
388 students
Needham, MA
A+Overall gradeAll boys388 students5 students per teacher
#9 Largest Private Schools in Norfolk County, MA
Ursuline Academy
Independent Catholic school · Grades 7–12
359 students
Dedham, MA
A+Overall gradeAll girls359 students9 students per teacher
#10 Largest Private Schools in Norfolk County, MA
St. Joseph School
Diocesan school · Grades Pre-K–8
358 students
Needham, MA
A-Overall grade358 students11 students per teacher
#11 Largest Private Schools in Norfolk County, MA
Cats Academy
Independent school · Grades 8–12
352 students
Braintree, MA
AOverall grade352 students8 students per teacher
#12 Largest Private Schools in Norfolk County, MA
Maimonides School
Jewish day school · Grades Pre-K–12
318 students
Brookline, MA
A+Overall grade318 students6 students per teacher
#13 Largest Private Schools in Norfolk County, MA
Maimonides
Jewish day school · Grades Pre-K–12
318 students
Brookline, MA
B+Overall grade318 students5 students per teacher
#14 Largest Private Schools in Norfolk County, MA
Fontbonne Academy
Independent Catholic school · Grades 7–12
317 students
Milton, MA
A+Overall gradeAll girls317 students9 students per teacher
#15 Largest Private Schools in Norfolk County, MA
St. Catherine of Siena School
Parish school · Grades Pre-K–8
306 students
Norwood, MA
A+Overall grade306 students7 students per teacher
#16 Largest Private Schools in Norfolk County, MA
Dedham Country Day School
Independent school · Grades Pre-K–8
287 students
Dedham, MA
AOverall grade287 students7 students per teacher
#17 Largest Private Schools in Norfolk County, MA
The Rashi School
Jewish day school · Grades Pre-K–8
280 students
Dedham, MA
B-Overall grade280 students9 students per teacher
#18 Largest Private Schools in Norfolk County, MA
Star Academy for the Gifted and Talented
Independent school · Grades Pre-K–11
269 students
Wellesley, MA
B-Overall grade269 students5 students per teacher
#19 Largest Private Schools in Norfolk County, MA
Torah Academy
Jewish day school · Grades Pre-K–8
255 students
Brookline, MA
B-Overall grade255 students9 students per teacher
#20 Largest Private Schools in Norfolk County, MA
St. Agatha School
Parish school · Grades Pre-K–8
253 students
Milton, MA
B+Overall grade253 students13 students per teacher
#21 Largest Private Schools in Norfolk County, MA
Montrose School
Independent Catholic school · Grades 6–12
244 students
Medfield, MA
AOverall gradeAll girls244 students8 students per teacher
#22 Largest Private Schools in Norfolk County, MA
South Shore Christian Academy
Christian school (nondenominational) · Grades Pre-K–12
222 students
Weymouth, MA
B+Overall grade222 students10 students per teacher
#23 Largest Private Schools in Norfolk County, MA
St. John the Evangelist School
Parish school · Grades Pre-K–8
218 students
Canton, MA
A+Overall grade218 students9 students per teacher
#24 Largest Private Schools in Norfolk County, MA
Quincy Catholic Academy
Diocesan school · Grades Pre-K–8
210 students
Quincy, MA
A+Overall grade210 students9 students per teacher
From official public records, updated October 2026.