#1 Largest Private Schools in Orange, CA
St. Johns Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
724 students
Orange, CA
BOverall grade724 students20 students per teacher
2026 lists
Largest Private Schools in Orange, CA
The private schools in Orange, CA with the most students. Top 12 of 12 schools.
#2 Largest Private Schools in Orange, CA
Salem Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
408 students
Orange, CA
BOverall grade408 students20 students per teacher
#3 Largest Private Schools in Orange, CA
St. Paul's Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
399 students
Orange, CA
B+Overall grade399 students18 students per teacher
#4 Largest Private Schools in Orange, CA
Holy Family Catholic School
Diocesan school · Grades Pre-K–8
392 students
Orange, CA
A+Overall grade392 students18 students per teacher
#5 Largest Private Schools in Orange, CA
St. Norbert Catholic School
Parish school · Grades Pre-K–8
272 students
Orange, CA
A+Overall grade272 students14 students per teacher
#6 Largest Private Schools in Orange, CA
Oakridge Private School
Christian school (nondenominational) · Grades Pre-K–8
203 students
Orange, CA
A+Overall grade203 students10 students per teacher
#7 Largest Private Schools in Orange, CA
Covenant Christian School
Christian school (nondenominational) · Grades Pre-K–8
197 students
Orange, CA
AOverall grade197 students14 students per teacher
#8 Largest Private Schools in Orange, CA
Spirit Academy
Christian school (nondenominational) · Grades Pre-K–12
143 students
Orange, CA
A+Overall grade143 students6 students per teacher
#9 Largest Private Schools in Orange, CA
La Purisima School
Parish school · Grades K–8
127 students
Orange, CA
A+Overall grade127 students11 students per teacher
#10 Largest Private Schools in Orange, CA
Adelphia Classical Christian Academy
Christian school (nondenominational) · Grades K–12
125 students
Orange, CA
A-Overall grade125 students9 students per teacher
#11 Largest Private Schools in Orange, CA
International School of Orange County
Independent school · Grades Pre-K–6
105 students
Orange, CA
AOverall grade105 students7 students per teacher
#12 Largest Private Schools in Orange, CA
Rossier Elementary School
Special education school · Grades K–8
59 students
Orange, CA
B+Overall grade59 students11 students per teacher
From official public records, updated October 2026.