#1 Largest Private Schools in Delaware County, OH
St. Paul School
Diocesan school · Grades Pre-K–8
781 students
Westerville, OH
BOverall grade781 students15 students per teacher
2026 lists
Largest Private Schools in Delaware County, OH
The private schools in Delaware County, OH with the most students. Top 11 of 11 schools.
#2 Largest Private Schools in Delaware County, OH
Genoa Christian Academy
Baptist school · Grades Pre-K–12
495 students
Westerville, OH
B-Overall grade495 students14 students per teacher
#3 Largest Private Schools in Delaware County, OH
Creme De La Creme
Early childhood program · Grades Pre-K–K
200 students
Westerville, OH
B-Overall grade200 students13 students per teacher
#4 Largest Private Schools in Delaware County, OH
St. Mary School
Parish school · Grades Pre-K–8
122 students
Delaware, OH
A+Overall grade122 students6 students per teacher
#5 Largest Private Schools in Delaware County, OH
Tree of Life Christian Schools
Christian school (nondenominational) · Grades Pre-K–5
118 students
Lewis Center, OH
AOverall grade118 students9 students per teacher
#6 Largest Private Schools in Delaware County, OH
All the Children of the World Academy
Early childhood program · Grades Pre-K–K
71 students
Westerville, OH
B+Overall grade71 students18 students per teacher
#7 Largest Private Schools in Delaware County, OH
Avicenna Preparatory School
Islamic school · Grades K–8
39 students
Powell, OH
39 students10 students per teacher
#8 Largest Private Schools in Delaware County, OH
Dublin Montessori Academy
Montessori school · Grades Pre-K–K
26 students
Powell, OH
AOverall grade26 students3 students per teacher
#9 Largest Private Schools in Delaware County, OH
The Goddard School
Early childhood program · Grades Pre-K–K
25 students
Powell, OH
B+Overall grade25 students16 students per teacher
#10 Largest Private Schools in Delaware County, OH
The Goddard School - Lewis Center
Early childhood program · Grades Pre-K–K
23 students
Powell, OH
B+Overall grade23 students23 students per teacher
#11 Largest Private Schools in Delaware County, OH
The Goddard School
Early childhood program · Grades Pre-K–K
20 students
Westerville, OH
A-Overall grade20 students8 students per teacher
From official public records, updated October 2026.