#1 Fastest-Growing Private Schools in Norfolk County, MA
Dexter Southfield
Independent school · Grades Pre-K–12
Enrollment up 155% in about a decade
Brookline, MA
A+Overall grade1,038 students5 students per teacher
2026 lists
Fastest-Growing Private Schools in Norfolk County, MA
Private schools in Norfolk County, MA whose enrollment has grown the most over the past decade. Top 11 of 11 schools.
#2 Fastest-Growing Private Schools in Norfolk County, MA
Cats Academy
Independent school · Grades 8–12
Enrollment up 129% in about a decade
Braintree, MA
AOverall grade352 students8 students per teacher
#3 Fastest-Growing Private Schools in Norfolk County, MA
Boston Higashi School
Special education school · Grades 1–12
Enrollment up 100% in about a decade
Randolph, MA
A+Overall grade176 students2 students per teacher
#4 Fastest-Growing Private Schools in Norfolk County, MA
Woodside Montessori Academy
Montessori school · Grades Pre-K–8
Enrollment up 88% in about a decade
Millis, MA
A-Overall grade64 students5 students per teacher
#5 Fastest-Growing Private Schools in Norfolk County, MA
St. John School
Diocesan school · Grades Pre-K–6
Enrollment up 66% in about a decade
Wellesley, MA
AOverall grade174 students10 students per teacher
#6 Fastest-Growing Private Schools in Norfolk County, MA
Torah Academy
Jewish day school · Grades Pre-K–8
Enrollment up 41% in about a decade
Brookline, MA
B-Overall grade255 students9 students per teacher
#7 Fastest-Growing Private Schools in Norfolk County, MA
Al-Noor Academy
Islamic school · Grades Pre-K–5
Enrollment up 41% in about a decade
Sharon, MA
BOverall grade141 students6 students per teacher
#8 Fastest-Growing Private Schools in Norfolk County, MA
Archbishop Williams High School
Independent Catholic school · Grades 7–12
Enrollment up 36% in about a decade
Braintree, MA
A-Overall grade725 students12 students per teacher
#9 Fastest-Growing Private Schools in Norfolk County, MA
Montrose School
Independent Catholic school · Grades 6–12
Enrollment up 25% in about a decade
Medfield, MA
AOverall gradeAll girls244 students8 students per teacher
#10 Fastest-Growing Private Schools in Norfolk County, MA
Dedham Country Day School
Independent school · Grades Pre-K–8
Enrollment up 20% in about a decade
Dedham, MA
AOverall grade287 students7 students per teacher
#11 Fastest-Growing Private Schools in Norfolk County, MA
Beaver Country Day School
Independent school · Grades 6–12
Enrollment up 11% in about a decade
Chestnut Hill, MA
AOverall grade500 students7 students per teacher
From official public records, updated October 2026.