#25 Largest Private Schools in Ohio
Carroll High School
Diocesan school · Grades 9–12
703 students
Dayton, OH
BOverall grade703 students13 students per teacher
2026 lists
Largest Private Schools in Ohio
The private schools in Ohio with the most students. Top 50 of 864 schools.
#26 Largest Private Schools in Ohio
Gilmour Academy
Independent Catholic school · Grades Pre-K–12
703 students
Gates Mills, OH
A+Overall grade703 students8 students per teacher
#27 Largest Private Schools in Ohio
Chaminade Julienne High School
Diocesan school · Grades 9–12
702 students
Dayton, OH
A+Overall grade702 students12 students per teacher
#28 Largest Private Schools in Ohio
Bishop Hartley High School
Diocesan school · Grades 9–12
697 students
Columbus, OH
A+Overall grade697 students13 students per teacher
#29 Largest Private Schools in Ohio
Stephen T Badin High School
Diocesan school · Grades 9–12
690 students
Hamilton, OH
BOverall grade690 students14 students per teacher
#30 Largest Private Schools in Ohio
St. Francis De Sales School
Independent Catholic school · Grades 7–12
674 students
Toledo, OH
A+Overall gradeAll boys674 students11 students per teacher
#31 Largest Private Schools in Ohio
Mansfield Christian School
Christian school (nondenominational) · Grades Pre-K–12
673 students
Mansfield, OH
B-Overall grade673 students16 students per teacher
#32 Largest Private Schools in Ohio
Lutheran High School West
Lutheran (Missouri Synod) school · Grades 6–12
672 students
Rocky River, OH
AOverall grade672 students12 students per teacher
#33 Largest Private Schools in Ohio
St. Joseph Academy
Independent Catholic school · Grades 9–12
671 students
Cleveland, OH
AOverall gradeAll girls671 students12 students per teacher
#34 Largest Private Schools in Ohio
Troy Christian Schools
Christian school (nondenominational) · Grades Pre-K–12
669 students
Troy, OH
B+Overall grade669 students8 students per teacher
#35 Largest Private Schools in Ohio
Delphos St. Johns
Independent Catholic school · Grades K–12
668 students
Delphos, OH
BOverall grade668 students9 students per teacher
#36 Largest Private Schools in Ohio
Hathaway Brown School
Independent school · Grades Pre-K–12
665 students
Shaker Heights, OH
A+Overall gradeAll girls665 students5 students per teacher
#37 Largest Private Schools in Ohio
Mount Notre Dame High School
Independent Catholic school · Grades 9–12
664 students
Cincinnati, OH
BOverall gradeAll girls664 students20 students per teacher
#38 Largest Private Schools in Ohio
Troy Christian High School
Christian school (nondenominational) · Grades Pre-K–12
662 students
Troy, OH
B+Overall grade662 students7 students per teacher
#39 Largest Private Schools in Ohio
Gesu School
Diocesan school · Grades Pre-K–8
639 students
University Heights, OH
BOverall grade639 students16 students per teacher
#40 Largest Private Schools in Ohio
Mother Teresa Catholic Elementary
Independent Catholic school · Grades K–8
638 students
Liberty Township, OH
B-Overall grade638 students18 students per teacher
#41 Largest Private Schools in Ohio
St. Susanna Elementary School
Diocesan school · Grades K–8
628 students
Mason, OH
B-Overall grade628 students18 students per teacher
#42 Largest Private Schools in Ohio
Archbishop McNicholas High School
Diocesan school · Grades 9–12
628 students
Cincinnati, OH
A+Overall grade628 students11 students per teacher
#43 Largest Private Schools in Ohio
St. James the Greater School
Parish school · Grades K–8
622 students
Cincinnati, OH
BOverall grade622 students15 students per teacher
#44 Largest Private Schools in Ohio
Central Catholic High School
Diocesan school · Grades 9–12
616 students
Toledo, OH
BOverall grade616 students15 students per teacher
#45 Largest Private Schools in Ohio
Toledo Christian Schools
Christian school (nondenominational) · Grades Pre-K–12
615 students
Toledo, OH
BOverall grade615 students15 students per teacher
#46 Largest Private Schools in Ohio
St. Ursula Academy
Independent Catholic school · Grades 9–12
614 students
Cincinnati, OH
A-Overall gradeAll girls614 students12 students per teacher
#47 Largest Private Schools in Ohio
St. Ursula Academy of Cincinnati
Independent Catholic school · Grades 9–12
614 students
Cincinnati, OH
A-Overall gradeAll girls614 students12 students per teacher
#48 Largest Private Schools in Ohio
Liberty Christian Academy
Christian school (nondenominational) · Grades Pre-K–12
585 students
Etna, OH
B-Overall grade585 students18 students per teacher
From official public records, updated October 2026.