#1 Largest Private Schools in Montgomery County, OH
Incarnation Catholic School
Diocesan school · Grades Pre-K–8
876 students
Centerville, OH
B+Overall grade876 students14 students per teacher
2026 lists
Largest Private Schools in Montgomery County, OH
The private schools in Montgomery County, OH with the most students. Top 31 of 31 schools.
#2 Largest Private Schools in Montgomery County, OH
Dayton Christian School
Christian school (nondenominational) · Grades Pre-K–12
832 students
Miamisburg, OH
BOverall grade832 students10 students per teacher
#3 Largest Private Schools in Montgomery County, OH
Carroll High School
Diocesan school · Grades 9–12
703 students
Dayton, OH
BOverall grade703 students13 students per teacher
#4 Largest Private Schools in Montgomery County, OH
Chaminade Julienne High School
Diocesan school · Grades 9–12
702 students
Dayton, OH
A+Overall grade702 students12 students per teacher
#5 Largest Private Schools in Montgomery County, OH
Spring Valley Academy
Seventh-day Adventist school · Grades Pre-K–12
519 students
Centerville, OH
BOverall grade519 students16 students per teacher
#6 Largest Private Schools in Montgomery County, OH
St. Charles Borromeo School
Parish school · Grades Pre-K–8
476 students
Kettering, OH
BOverall grade476 students17 students per teacher
#7 Largest Private Schools in Montgomery County, OH
St. Peter Elementary School
Parish school · Grades K–8
441 students
Huber Heights, OH
BOverall grade441 students18 students per teacher
#8 Largest Private Schools in Montgomery County, OH
The Miami Valley School
Independent school · Grades Pre-K–12
428 students
Dayton, OH
A+Overall grade428 students7 students per teacher
#9 Largest Private Schools in Montgomery County, OH
St. Helen School
Diocesan school · Grades Pre-K–8
380 students
Dayton, OH
B+Overall grade380 students17 students per teacher
#10 Largest Private Schools in Montgomery County, OH
East Dayton Christian School
Christian school (nondenominational) · Grades K–12
373 students
Dayton, OH
B+Overall grade373 students13 students per teacher
#11 Largest Private Schools in Montgomery County, OH
St. Christopher
Parish school · Grades K–8
295 students
Vandalia, OH
A+Overall grade295 students11 students per teacher
#12 Largest Private Schools in Montgomery County, OH
Our Lady of the Rosary School
Diocesan school · Grades Pre-K–8
274 students
Dayton, OH
A+Overall grade274 students10 students per teacher
#13 Largest Private Schools in Montgomery County, OH
Holy Angels Elementary School
Diocesan school · Grades Pre-K–8
224 students
Dayton, OH
A+Overall grade224 students8 students per teacher
#14 Largest Private Schools in Montgomery County, OH
Bishop Leibold School
Parish school · Grades 3–8
207 students
Dayton, OH
BOverall grade207 students16 students per teacher
#15 Largest Private Schools in Montgomery County, OH
Germantown Christian School
Pentecostal school · Grades K–12
205 students
Germantown, OH
B+Overall grade205 students9 students per teacher
#16 Largest Private Schools in Montgomery County, OH
Ascension School
Parish school · Grades K–8
203 students
Kettering, OH
A+Overall grade203 students12 students per teacher
#17 Largest Private Schools in Montgomery County, OH
Mother Maria a. Brunner
Independent Catholic school · Grades Pre-K–8
180 students
Dayton, OH
AOverall grade180 students12 students per teacher
#18 Largest Private Schools in Montgomery County, OH
St. Albert the Great Catholic School
Diocesan school · Grades Pre-K–8
169 students
Kettering, OH
A+Overall grade169 students6 students per teacher
#19 Largest Private Schools in Montgomery County, OH
St. Benedict the Moor Catholic School
Parish school · Grades Pre-K–8
168 students
Dayton, OH
BOverall grade168 students14 students per teacher
#20 Largest Private Schools in Montgomery County, OH
St. Anthony Elementary School
Parish school · Grades K–8
151 students
Dayton, OH
A+Overall grade151 students8 students per teacher
#21 Largest Private Schools in Montgomery County, OH
Temple Christian School
Baptist school · Grades Pre-K–12
121 students
Dayton, OH
A+Overall grade121 students8 students per teacher
#22 Largest Private Schools in Montgomery County, OH
Bishop Leibold West
Parish school · Grades Pre-K–2
120 students
Miamisburg, OH
B-Overall grade120 students16 students per teacher
#23 Largest Private Schools in Montgomery County, OH
Montessori School of Dayton
Montessori school · Grades Pre-K–8
119 students
Kettering, OH
BOverall grade119 students9 students per teacher
#24 Largest Private Schools in Montgomery County, OH
Creative World of Montessori-Wilmington Pike
Montessori school · Grades Pre-K–12
117 students
Centerville, OH
BOverall grade117 students8 students per teacher
From official public records, updated October 2026.