#1 Private Schools with the Smallest Classes in Orange, CA
Spirit Academy
Christian school (nondenominational) · Grades Pre-K–12
5.9 students per teacher
Orange, CA
A+Overall grade143 students6 students per teacher
2026 lists
Private Schools with the Smallest Classes in Orange, CA
Private schools in Orange, CA with the fewest students per teacher (not counting preschools and special education schools). Top 11 of 11 schools.
#2 Private Schools with the Smallest Classes in Orange, CA
International School of Orange County
Independent school · Grades Pre-K–6
7.3 students per teacher
Orange, CA
AOverall grade105 students7 students per teacher
#3 Private Schools with the Smallest Classes in Orange, CA
Adelphia Classical Christian Academy
Christian school (nondenominational) · Grades K–12
9.1 students per teacher
Orange, CA
A-Overall grade125 students9 students per teacher
#4 Private Schools with the Smallest Classes in Orange, CA
Oakridge Private School
Christian school (nondenominational) · Grades Pre-K–8
9.5 students per teacher
Orange, CA
A+Overall grade203 students10 students per teacher
#5 Private Schools with the Smallest Classes in Orange, CA
La Purisima School
Parish school · Grades K–8
11.2 students per teacher
Orange, CA
A+Overall grade127 students11 students per teacher
#6 Private Schools with the Smallest Classes in Orange, CA
St. Norbert Catholic School
Parish school · Grades Pre-K–8
13.7 students per teacher
Orange, CA
A+Overall grade272 students14 students per teacher
#7 Private Schools with the Smallest Classes in Orange, CA
Covenant Christian School
Christian school (nondenominational) · Grades Pre-K–8
13.8 students per teacher
Orange, CA
AOverall grade197 students14 students per teacher
#8 Private Schools with the Smallest Classes in Orange, CA
Holy Family Catholic School
Diocesan school · Grades Pre-K–8
17.8 students per teacher
Orange, CA
A+Overall grade392 students18 students per teacher
#9 Private Schools with the Smallest Classes in Orange, CA
St. Paul's Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
17.9 students per teacher
Orange, CA
B+Overall grade399 students18 students per teacher
#10 Private Schools with the Smallest Classes in Orange, CA
Salem Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
19.5 students per teacher
Orange, CA
BOverall grade408 students20 students per teacher
#11 Private Schools with the Smallest Classes in Orange, CA
St. Johns Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
19.8 students per teacher
Orange, CA
BOverall grade724 students20 students per teacher
From official public records, updated October 2026.