#1 Largest Private Schools in Pittsburgh, PA
Shady Side Academy
Independent school · Grades Pre-K–12
1,118 students
Pittsburgh, PA
B+Overall grade1,118 students21 students per teacher
2026 lists
Largest Private Schools in Pittsburgh, PA
The private schools in Pittsburgh, PA with the most students. Top 50 of 62 schools.
#2 Largest Private Schools in Pittsburgh, PA
Shady Side Academy
Independent school · Grades Pre-K–12
1,118 students
Pittsburgh, PA
A-Overall grade1,118 students8 students per teacher
#3 Largest Private Schools in Pittsburgh, PA
Central Catholic High School
Diocesan school · Grades 9–12
712 students
Pittsburgh, PA
A+Overall gradeAll boys712 students12 students per teacher
#4 Largest Private Schools in Pittsburgh, PA
Eden Christian Academy
Christian school (nondenominational) · Grades K–12
643 students
Pittsburgh, PA
BOverall grade643 students11 students per teacher
#5 Largest Private Schools in Pittsburgh, PA
St. Louise De Marillac School
Diocesan school · Grades Pre-K–8
511 students
Pittsburgh, PA
B-Overall grade511 students20 students per teacher
#6 Largest Private Schools in Pittsburgh, PA
Seton Lasalle Catholic High School
Diocesan school · Grades 9–12
433 students
Pittsburgh, PA
A-Overall grade433 students12 students per teacher
#7 Largest Private Schools in Pittsburgh, PA
Falk Laboratory School
Independent school · Grades K–8
432 students
Pittsburgh, PA
A+Overall grade432 students7 students per teacher
#8 Largest Private Schools in Pittsburgh, PA
Sacred Heart Elementary School
Parish school · Grades Pre-K–8
409 students
Pittsburgh, PA
BOverall grade409 students17 students per teacher
#9 Largest Private Schools in Pittsburgh, PA
Grace Non-Traditional Christian Academy
Alternative school · Grades 9–12
407 students
Pittsburgh, PA
B-Overall grade407 students
#10 Largest Private Schools in Pittsburgh, PA
Oakland Catholic High School
Diocesan school · Grades 9–12
400 students
Pittsburgh, PA
A+Overall gradeAll girls400 students10 students per teacher
#11 Largest Private Schools in Pittsburgh, PA
Ellis School
Independent school · Grades Pre-K–12
367 students
Pittsburgh, PA
A+Overall gradeAll girls367 students6 students per teacher
#12 Largest Private Schools in Pittsburgh, PA
Hillel Academy Pittsburgh
Jewish day school · Grades Pre-K–12
356 students
Pittsburgh, PA
B-Overall grade356 students7 students per teacher
#13 Largest Private Schools in Pittsburgh, PA
Mother of Mercy Academy
Diocesan school · Grades Pre-K–8
298 students
Pittsburgh, PA
BOverall grade298 students14 students per teacher
#14 Largest Private Schools in Pittsburgh, PA
Mother of Mercy Academy
Diocesan school · Grades Pre-K–8
297 students
Pittsburgh, PA
B+Overall grade297 students13 students per teacher
#15 Largest Private Schools in Pittsburgh, PA
Hillel Academy-Boys H.S.
Jewish day school · Grades K–12
293 students
Pittsburgh, PA
BOverall grade293 students6 students per teacher
#16 Largest Private Schools in Pittsburgh, PA
Ave Maria Academy - Bethel Campus
Diocesan school · Grades Pre-K–8
280 students
Pittsburgh, PA
B-Overall grade280 students21 students per teacher
#17 Largest Private Schools in Pittsburgh, PA
St. Edmund's Academy
Independent school · Grades Pre-K–8
270 students
Pittsburgh, PA
A+Overall grade270 students7 students per teacher
#18 Largest Private Schools in Pittsburgh, PA
Shady Side Academy Junior School
Independent school · Grades Pre-K–5
263 students
Pittsburgh, PA
A+Overall grade263 students4 students per teacher
#19 Largest Private Schools in Pittsburgh, PA
Guardian Angel Academy
Diocesan school · Grades Pre-K–8
245 students
Pittsburgh, PA
B-Overall grade245 students16 students per teacher
#20 Largest Private Schools in Pittsburgh, PA
St. Bede School
Diocesan school · Grades Pre-K–8
242 students
Pittsburgh, PA
B+Overall grade242 students13 students per teacher
#21 Largest Private Schools in Pittsburgh, PA
Community Day School
Jewish day school · Grades Pre-K–8
240 students
Pittsburgh, PA
B+Overall grade240 students6 students per teacher
#22 Largest Private Schools in Pittsburgh, PA
Grace Non-Traditional Christian Academy
Independent school · Grades 9–12
234 students
Pittsburgh, PA
B-Overall grade234 students11 students per teacher
#23 Largest Private Schools in Pittsburgh, PA
Ave Maria Academy-Mt. Lebanon Campus
Diocesan school · Grades Pre-K–8
205 students
Pittsburgh, PA
B-Overall grade205 students20 students per teacher
#24 Largest Private Schools in Pittsburgh, PA
Bishop Canevin High School
Diocesan school · Grades 9–12
204 students
Pittsburgh, PA
A+Overall grade204 students10 students per teacher
From official public records, updated October 2026.