#1 Private Schools with the Smallest Classes in Delaware County, PA
The Walden School
Montessori school · Grades Pre-K–8
2.9 students per teacher
Media, PA
AOverall grade53 students3 students per teacher
2026 lists
Private Schools with the Smallest Classes in Delaware County, PA
Private schools in Delaware County, PA with the fewest students per teacher (not counting preschools and special education schools). Top 44 of 44 schools.
#2 Private Schools with the Smallest Classes in Delaware County, PA
Main Line Classical Academy
Independent school · Grades K–11
3.5 students per teacher
Bryn Mawr, PA
A+Overall grade85 students4 students per teacher
#3 Private Schools with the Smallest Classes in Delaware County, PA
The Grayson School
Independent school · Grades Pre-K–12
4 students per teacher
Radnor, PA
A+Overall grade160 students4 students per teacher
#4 Private Schools with the Smallest Classes in Delaware County, PA
Holy Child Academy
Independent Catholic school · Grades Pre-K–8
4.8 students per teacher
Drexel Hill, PA
A+Overall grade123 students5 students per teacher
#5 Private Schools with the Smallest Classes in Delaware County, PA
Lansdowne Friends School
Quaker (Friends) school · Grades Pre-K–6
5.1 students per teacher
Lansdowne, PA
A+Overall grade88 students5 students per teacher
#6 Private Schools with the Smallest Classes in Delaware County, PA
Media-Providence Friends School
Quaker (Friends) school · Grades Pre-K–8
5.2 students per teacher
Media, PA
A+Overall grade79 students5 students per teacher
#7 Private Schools with the Smallest Classes in Delaware County, PA
St. Aloysius Academy
Independent Catholic school · Grades Pre-K–8
5.4 students per teacher
Bryn Mawr, PA
A+Overall gradeAll boys127 students5 students per teacher
#8 Private Schools with the Smallest Classes in Delaware County, PA
Frederick Douglass Christian School
Baptist school · Grades Pre-K–8
5.5 students per teacher
Chester, PA
A-Overall grade55 students6 students per teacher
#9 Private Schools with the Smallest Classes in Delaware County, PA
Sacred Heart Academy Bryn Mawr
Independent Catholic school · Grades K–12
6.1 students per teacher
Bryn Mawr, PA
A+Overall gradeAll girls190 students6 students per teacher
#10 Private Schools with the Smallest Classes in Delaware County, PA
Jack M Barrack Hebrew Academy
Jewish day school · Grades 6–12
6.5 students per teacher
Bryn Mawr, PA
A+Overall grade360 students7 students per teacher
#11 Private Schools with the Smallest Classes in Delaware County, PA
The Episcopal Academy
Episcopal school · Grades Pre-K–12
6.6 students per teacher
Newtown Square, PA
A+Overall grade1,252 students7 students per teacher
#12 Private Schools with the Smallest Classes in Delaware County, PA
The School in Rose Valley
Independent school · Grades Pre-K–5
6.6 students per teacher
Rose Valley, PA
AOverall grade86 students7 students per teacher
#13 Private Schools with the Smallest Classes in Delaware County, PA
The Agnes Irwin School
Independent school · Grades Pre-K–12
6.8 students per teacher
Bryn Mawr, PA
A+Overall gradeAll girls599 students7 students per teacher
#14 Private Schools with the Smallest Classes in Delaware County, PA
Davidson School
Independent school · Grades Pre-K–12
7.1 students per teacher
Elwyn, PA
B+Overall grade269 students7 students per teacher
#15 Private Schools with the Smallest Classes in Delaware County, PA
Ysc Academy
Independent school · Grades 7–12
7.5 students per teacher
Chester, PA
AOverall gradeAll boys82 students8 students per teacher
#16 Private Schools with the Smallest Classes in Delaware County, PA
Innovate Academy
Christian school (nondenominational) · Grades Pre-K–8
7.6 students per teacher
Chadds Ford, PA
BOverall grade145 students8 students per teacher
#17 Private Schools with the Smallest Classes in Delaware County, PA
The Episcopal Academy
Episcopal school · Grades Pre-K–12
7.9 students per teacher
Newtown Square, PA
A+Overall grade1,252 students8 students per teacher
#18 Private Schools with the Smallest Classes in Delaware County, PA
St. Piusx School
Diocesan school · Grades Pre-K–8
8.4 students per teacher
Broomall, PA
A+Overall grade323 students8 students per teacher
#19 Private Schools with the Smallest Classes in Delaware County, PA
Valley Forge Military Academy
Independent school · Grades 7–12
8.5 students per teacher
Wayne, PA
BOverall gradeAll boys128 students9 students per teacher
#20 Private Schools with the Smallest Classes in Delaware County, PA
Cheder Chabad Philadelphia
Jewish day school · Grades Pre-K–8
8.8 students per teacher
Bryn Mawr, PA
B-Overall grade172 students9 students per teacher
#21 Private Schools with the Smallest Classes in Delaware County, PA
Academy-Notre Dame De Namur
Independent Catholic school · Grades 6–12
9.4 students per teacher
Villanova, PA
B+Overall gradeAll girls541 students9 students per teacher
#22 Private Schools with the Smallest Classes in Delaware County, PA
Delaware County Christian School
Christian school (nondenominational) · Grades Pre-K–12
10.2 students per teacher
Newtown Square, PA
AOverall grade781 students10 students per teacher
#23 Private Schools with the Smallest Classes in Delaware County, PA
Sacred Heart Catholic School
Diocesan school · Grades Pre-K–8
10.6 students per teacher
Havertown, PA
A+Overall grade153 students11 students per teacher
#24 Private Schools with the Smallest Classes in Delaware County, PA
St. Mary Magdalen School
Diocesan school · Grades K–8
10.8 students per teacher
Media, PA
B+Overall grade307 students11 students per teacher
From official public records, updated October 2026.