#1 Largest Private Schools in Dorchester, MA
Boston College High School
Independent Catholic school · Grades 7–12
1,439 students
Dorchester, MA
AOverall gradeAll boys1,439 students13 students per teacher
2026 lists
Largest Private Schools in Dorchester, MA
The private schools in Dorchester, MA with the most students. Top 7 of 7 schools.
#2 Largest Private Schools in Dorchester, MA
St. John Paul Lower Mills
Diocesan school · Grades Pre-K–8
340 students
Dorchester, MA
B-Overall grade340 students14 students per teacher
#3 Largest Private Schools in Dorchester, MA
St. John Paul II Academy, Neponset
Diocesan school · Grades Pre-K–8
292 students
Dorchester, MA
BOverall grade292 students13 students per teacher
#4 Largest Private Schools in Dorchester, MA
Cristo Rey Boston High School
Diocesan school · Grades 9–12
230 students
Dorchester, MA
B+Overall grade230 students15 students per teacher
#5 Largest Private Schools in Dorchester, MA
St. John Paul II Catholic Academy Columbia Camp
Diocesan school · Grades Pre-K–8
214 students
Dorchester, MA
A+Overall grade214 students11 students per teacher
#6 Largest Private Schools in Dorchester, MA
St. Brendan School
Parish school · Grades Pre-K–6
152 students
Dorchester, MA
B+Overall grade152 students12 students per teacher
#7 Largest Private Schools in Dorchester, MA
Mother Caroline Academy & Education Center
Independent Catholic school · Grades 3–8
69 students
Dorchester, MA
AOverall gradeAll girls69 students8 students per teacher
From official public records, updated October 2026.