#1 Largest Private Schools in Warren County, OH
St. Susanna Elementary School
Diocesan school · Grades K–8
628 students
Mason, OH
B-Overall grade628 students18 students per teacher
2026 lists
Largest Private Schools in Warren County, OH
The private schools in Warren County, OH with the most students. Top 13 of 13 schools.
#2 Largest Private Schools in Warren County, OH
Bishop Fenwich High School
Diocesan school · Grades 9–12
487 students
Middletown, OH
BOverall grade487 students13 students per teacher
#3 Largest Private Schools in Warren County, OH
Middletown Christian School
Baptist school · Grades K–12
487 students
Franklin, OH
BOverall grade487 students13 students per teacher
#4 Largest Private Schools in Warren County, OH
Liberty Bible Academy
Christian school (nondenominational) · Grades Pre-K–12
310 students
Mason, OH
AOverall grade310 students14 students per teacher
#5 Largest Private Schools in Warren County, OH
The Cinday Academy
Alternative school · Grades Pre-K–12
201 students
Springboro, OH
BOverall grade201 students9 students per teacher
#6 Largest Private Schools in Warren County, OH
St. Francis De Sales School
Parish school · Grades K–8
161 students
Lebanon, OH
A+Overall grade161 students11 students per teacher
#7 Largest Private Schools in Warren County, OH
Montessori Academy of Cincinnati
Montessori school · Grades Pre-K–8
158 students
Mason, OH
B+Overall grade158 students8 students per teacher
#8 Largest Private Schools in Warren County, OH
Montessori Academy of Cincinnati
Montessori school · Grades Pre-K–8
158 students
Mason, OH
AOverall grade158 students8 students per teacher
#9 Largest Private Schools in Warren County, OH
Royalmont Academy
Independent Catholic school · Grades Pre-K–12
147 students
Mason, OH
A+Overall grade147 students7 students per teacher
#10 Largest Private Schools in Warren County, OH
Kids R Kids #3 OH
Early childhood program · Grades Pre-K–K
136 students
Springboro, OH
BOverall grade136 students8 students per teacher
#11 Largest Private Schools in Warren County, OH
The Goddard School of Springboro
Early childhood program · Grades Pre-K–K
36 students
Springboro, OH
B+Overall grade36 students18 students per teacher
#12 Largest Private Schools in Warren County, OH
Cozaddale Baptist Academy
Baptist school · Grades 2–11
36 students
Goshen, OH
AOverall grade36 students5 students per teacher
#13 Largest Private Schools in Warren County, OH
Village Christian School
Special education school · Grades 7–12
20 students
Pleasant Plain, OH
AOverall grade20 students3 students per teacher
From official public records, updated October 2026.