#1 Largest Private Schools in Oklahoma County, OK
Oklahoma Christian School
Christian school (nondenominational) · Grades Pre-K–12
1,111 students
Edmond, OK
BOverall grade1,111 students13 students per teacher
2026 lists
Largest Private Schools in Oklahoma County, OK
The private schools in Oklahoma County, OK with the most students. Top 37 of 37 schools.
#2 Largest Private Schools in Oklahoma County, OK
Crossings Christian School
Christian school (nondenominational) · Grades Pre-K–12
1,050 students
Oklahoma City, OK
B+Overall grade1,050 students12 students per teacher
#3 Largest Private Schools in Oklahoma County, OK
Casady School
Episcopal school · Grades Pre-K–12
922 students
Oklahoma City, OK
A+Overall grade922 students8 students per teacher
#4 Largest Private Schools in Oklahoma County, OK
The Academy of Classical Christian Midtown Campus
Christian school (nondenominational) · Grades Pre-K–12
871 students
Oklahoma City, OK
B-Overall grade871 students13 students per teacher
#5 Largest Private Schools in Oklahoma County, OK
Heritage Hall
Independent school · Grades Pre-K–12
870 students
Oklahoma City, OK
A+Overall grade870 students8 students per teacher
#6 Largest Private Schools in Oklahoma County, OK
The Acad of Classical CHRN Studies
Christian school (nondenominational) · Grades Pre-K–12
862 students
Oklahoma City, OK
BOverall grade862 students16 students per teacher
#7 Largest Private Schools in Oklahoma County, OK
The Academy of Classical Christian Studies
Christian school (nondenominational) · Grades Pre-K–12
859 students
Oklahoma City, OK
B-Overall grade859 students13 students per teacher
#8 Largest Private Schools in Oklahoma County, OK
Bishop McGuinness Catholic High School
Diocesan school · Grades 9–12
751 students
Oklahoma City, OK
A+Overall grade751 students13 students per teacher
#9 Largest Private Schools in Oklahoma County, OK
Christian Heritage Academy
Christian school (nondenominational) · Grades K–12
640 students
Del City, OK
B-Overall grade640 students15 students per teacher
#10 Largest Private Schools in Oklahoma County, OK
Oklahoma Christian Academy
Church of Christ school · Grades Pre-K–12
547 students
Edmond, OK
BOverall grade547 students9 students per teacher
#11 Largest Private Schools in Oklahoma County, OK
Westminster School
Independent school · Grades Pre-K–8
511 students
Oklahoma City, OK
BOverall grade511 students9 students per teacher
#12 Largest Private Schools in Oklahoma County, OK
Christ the King Catholic School
Diocesan school · Grades Pre-K–8
436 students
Oklahoma City, OK
B-Overall grade436 students15 students per teacher
#13 Largest Private Schools in Oklahoma County, OK
Mercy School Institute
Islamic school · Grades Pre-K–12
393 students
Edmond, OK
A+Overall grade393 students11 students per teacher
#14 Largest Private Schools in Oklahoma County, OK
Mount Saint Mary Catholic High School
Diocesan school · Grades 9–12
389 students
Oklahoma City, OK
A+Overall grade389 students9 students per teacher
#15 Largest Private Schools in Oklahoma County, OK
St. Elizabeth Ann Seton
Parish school · Grades Pre-K–8
363 students
Edmond, OK
B-Overall grade363 students12 students per teacher
#16 Largest Private Schools in Oklahoma County, OK
St. Elizabeth Ann Seton
Parish school · Grades Pre-K–8
363 students
Edmond, OK
BOverall grade363 students12 students per teacher
#17 Largest Private Schools in Oklahoma County, OK
Bishop John Carroll School
Diocesan school · Grades Pre-K–8
203 students
Oklahoma City, OK
B+Overall grade203 students13 students per teacher
#18 Largest Private Schools in Oklahoma County, OK
Cristo Rey Oklahoma City Catholic High School
Independent Catholic school · Grades 9–12
198 students
Oklahoma City, OK
BOverall grade198 students12 students per teacher
#19 Largest Private Schools in Oklahoma County, OK
Holy Trinity Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
195 students
Edmond, OK
B+Overall grade195 students9 students per teacher
#20 Largest Private Schools in Oklahoma County, OK
St. Marys Episcopal School
Episcopal school · Grades Pre-K–5
172 students
Edmond, OK
A+Overall grade172 students5 students per teacher
#21 Largest Private Schools in Oklahoma County, OK
Trinity School
Special education school · Grades 1–12
164 students
Oklahoma City, OK
BOverall grade164 students7 students per teacher
#22 Largest Private Schools in Oklahoma County, OK
St. James Catholic School
Independent Catholic school · Grades Pre-K–8
152 students
Oklahoma City, OK
AOverall grade152 students10 students per teacher
#23 Largest Private Schools in Oklahoma County, OK
St. Philip Neri School
Parish school · Grades Pre-K–8
151 students
Midwest City, OK
A+Overall grade151 students10 students per teacher
#24 Largest Private Schools in Oklahoma County, OK
Warm World School
Early childhood program · Grades Pre-K–K
143 students
Oklahoma City, OK
143 students14 students per teacher
From official public records, updated October 2026.