#1 Private Schools with the Smallest Classes in Allegheny County, PA
Shady Side Academy Junior School
Independent school · Grades Pre-K–5
4.4 students per teacher
Pittsburgh, PA
A+Overall grade263 students4 students per teacher
2026 lists
Private Schools with the Smallest Classes in Allegheny County, PA
Private schools in Allegheny County, PA with the fewest students per teacher (not counting preschools and special education schools). Top 50 of 68 schools.
#2 Private Schools with the Smallest Classes in Allegheny County, PA
The Campus Laboratory School of Carlow University
Christian school (nondenominational) · Grades Pre-K–8
4.4 students per teacher
Pittsburgh, PA
A+Overall grade150 students4 students per teacher
#3 Private Schools with the Smallest Classes in Allegheny County, PA
The Glen Montessori School
Montessori school · Grades Pre-K–6
4.7 students per teacher
Pittsburgh, PA
A+Overall grade104 students5 students per teacher
#4 Private Schools with the Smallest Classes in Allegheny County, PA
New Outlook Academy
Alternative school · Grades 7–12
4.8 students per teacher
Pittsburgh, PA
A+Overall gradeAll girls53 students5 students per teacher
#5 Private Schools with the Smallest Classes in Allegheny County, PA
Waldorf School of Pittsburgh
Independent school · Grades 1–8
5.1 students per teacher
Pittsburgh, PA
A+Overall grade121 students5 students per teacher
#6 Private Schools with the Smallest Classes in Allegheny County, PA
Shady Side Academy Country Day School
Independent school · Grades Pre-K–5
5.2 students per teacher
Pittsburgh, PA
A+Overall grade152 students5 students per teacher
#7 Private Schools with the Smallest Classes in Allegheny County, PA
Jubilee Christian School
Christian school (nondenominational) · Grades K–8
5.2 students per teacher
Pittsburgh, PA
AOverall grade42 students5 students per teacher
#8 Private Schools with the Smallest Classes in Allegheny County, PA
Ellis School
Independent school · Grades Pre-K–12
5.5 students per teacher
Pittsburgh, PA
A+Overall gradeAll girls367 students6 students per teacher
#9 Private Schools with the Smallest Classes in Allegheny County, PA
Hillel Academy-Boys H.S.
Jewish day school · Grades K–12
5.6 students per teacher
Pittsburgh, PA
BOverall grade293 students6 students per teacher
#10 Private Schools with the Smallest Classes in Allegheny County, PA
Community Day School
Jewish day school · Grades Pre-K–8
5.8 students per teacher
Pittsburgh, PA
B+Overall grade240 students6 students per teacher
#11 Private Schools with the Smallest Classes in Allegheny County, PA
Providence Heights Alpha School
Independent Catholic school · Grades Pre-K–8
5.8 students per teacher
Allison Park, PA
A+Overall grade81 students6 students per teacher
#12 Private Schools with the Smallest Classes in Allegheny County, PA
Mount Lebanon Montessori
Montessori school · Grades Pre-K–6
6.1 students per teacher
Pittsburgh, PA
A-Overall grade46 students6 students per teacher
#13 Private Schools with the Smallest Classes in Allegheny County, PA
Rhema Christian School
Christian school (nondenominational) · Grades Pre-K–8
6.3 students per teacher
Coraopolis, PA
A+Overall grade79 students6 students per teacher
#14 Private Schools with the Smallest Classes in Allegheny County, PA
Montessori Center Academy
Montessori school · Grades K–5
6.3 students per teacher
Glenshaw, PA
B+Overall grade43 students6 students per teacher
#15 Private Schools with the Smallest Classes in Allegheny County, PA
Yeshiva Girls School
Jewish day school · Grades K–12
6.5 students per teacher
Pittsburgh, PA
BOverall gradeAll girls156 students7 students per teacher
#16 Private Schools with the Smallest Classes in Allegheny County, PA
Hillcrest Christian Academy
Christian school (nondenominational) · Grades Pre-K–12
6.6 students per teacher
Bethel Park, PA
A-Overall grade170 students7 students per teacher
#17 Private Schools with the Smallest Classes in Allegheny County, PA
Falk Laboratory School
Independent school · Grades K–8
6.8 students per teacher
Pittsburgh, PA
A+Overall grade432 students7 students per teacher
#18 Private Schools with the Smallest Classes in Allegheny County, PA
Imani Christian Academy
Christian school (nondenominational) · Grades Pre-K–12
6.8 students per teacher
Pittsburgh, PA
BOverall grade149 students7 students per teacher
#19 Private Schools with the Smallest Classes in Allegheny County, PA
Hillel Academy Pittsburgh
Jewish day school · Grades Pre-K–12
7 students per teacher
Pittsburgh, PA
B-Overall grade356 students7 students per teacher
#20 Private Schools with the Smallest Classes in Allegheny County, PA
Yeshiva Boys School
Jewish day school · Grades K–11
7 students per teacher
Pittsburgh, PA
BOverall gradeAll boys146 students7 students per teacher
#21 Private Schools with the Smallest Classes in Allegheny County, PA
Sewickley Academy
Independent school · Grades Pre-K–12
7.1 students per teacher
Sewickley, PA
A+Overall grade445 students7 students per teacher
#22 Private Schools with the Smallest Classes in Allegheny County, PA
St. Anthony School Programs
Diocesan school · Grades 1–12
7.3 students per teacher
Wexford, PA
AOverall grade73 students7 students per teacher
#23 Private Schools with the Smallest Classes in Allegheny County, PA
St. Edmund's Academy
Independent school · Grades Pre-K–8
7.4 students per teacher
Pittsburgh, PA
A+Overall grade270 students7 students per teacher
#24 Private Schools with the Smallest Classes in Allegheny County, PA
City of Bridges High School
Religious school · Grades 9–12
7.7 students per teacher
Pittsburgh, PA
BOverall grade60 students8 students per teacher
From official public records, updated October 2026.