#1 Largest Private Schools in Oklahoma City, 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
2026 lists
Largest Private Schools in Oklahoma City, OK
The private schools in Oklahoma City, OK with the most students. Top 25 of 25 schools.
#2 Largest Private Schools in Oklahoma City, OK
Casady School
Episcopal school · Grades Pre-K–12
922 students
Oklahoma City, OK
A+Overall grade922 students8 students per teacher
#3 Largest Private Schools in Oklahoma City, 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
#4 Largest Private Schools in Oklahoma City, OK
Heritage Hall
Independent school · Grades Pre-K–12
870 students
Oklahoma City, OK
A+Overall grade870 students8 students per teacher
#5 Largest Private Schools in Oklahoma City, 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
#6 Largest Private Schools in Oklahoma City, 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
#7 Largest Private Schools in Oklahoma City, OK
Bishop McGuinness Catholic High School
Diocesan school · Grades 9–12
751 students
Oklahoma City, OK
A+Overall grade751 students13 students per teacher
#8 Largest Private Schools in Oklahoma City, OK
Westminster School
Independent school · Grades Pre-K–8
511 students
Oklahoma City, OK
BOverall grade511 students9 students per teacher
#9 Largest Private Schools in Oklahoma City, OK
Christ the King Catholic School
Diocesan school · Grades Pre-K–8
436 students
Oklahoma City, OK
B-Overall grade436 students15 students per teacher
#10 Largest Private Schools in Oklahoma City, OK
Mount Saint Mary Catholic High School
Diocesan school · Grades 9–12
389 students
Oklahoma City, OK
A+Overall grade389 students9 students per teacher
#11 Largest Private Schools in Oklahoma City, OK
Bishop John Carroll School
Diocesan school · Grades Pre-K–8
203 students
Oklahoma City, OK
B+Overall grade203 students13 students per teacher
#12 Largest Private Schools in Oklahoma City, 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
#13 Largest Private Schools in Oklahoma City, OK
Trinity School
Special education school · Grades 1–12
164 students
Oklahoma City, OK
BOverall grade164 students7 students per teacher
#14 Largest Private Schools in Oklahoma City, OK
St. James Catholic School
Independent Catholic school · Grades Pre-K–8
152 students
Oklahoma City, OK
AOverall grade152 students10 students per teacher
#15 Largest Private Schools in Oklahoma City, OK
Warm World School
Early childhood program · Grades Pre-K–K
143 students
Oklahoma City, OK
143 students14 students per teacher
#16 Largest Private Schools in Oklahoma City, OK
Sacred Heart Catholic School
Parish school · Grades Pre-K–8
133 students
Oklahoma City, OK
BOverall grade133 students11 students per teacher
#17 Largest Private Schools in Oklahoma City, OK
Positive Tomorrows
Independent school · Grades Pre-K–7
108 students
Oklahoma City, OK
B+Overall grade108 students12 students per teacher
#18 Largest Private Schools in Oklahoma City, OK
St. Paul's Community School
Christian school (nondenominational) · Grades Pre-K–5
92 students
Oklahoma City, OK
BOverall grade92 students15 students per teacher
#19 Largest Private Schools in Oklahoma City, OK
Young Achievers Christian Academy
Christian school (nondenominational) · Grades 1–8
83 students
Oklahoma City, OK
B+Overall grade83 students6 students per teacher
#20 Largest Private Schools in Oklahoma City, OK
Creative Kids Learning Center
Christian school (nondenominational) · Grades Pre-K–6
75 students
Oklahoma City, OK
BOverall grade75 students13 students per teacher
#21 Largest Private Schools in Oklahoma City, OK
Messiah Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–7
64 students
Oklahoma City, OK
AOverall grade64 students7 students per teacher
#22 Largest Private Schools in Oklahoma City, OK
Parkview Adventist Academy
Seventh-day Adventist school · Grades Pre-K–12
53 students
Oklahoma City, OK
AOverall grade53 students9 students per teacher
#23 Largest Private Schools in Oklahoma City, OK
Odyssey Leadership Academy
Independent school · Grades 6–12
46 students
Oklahoma City, OK
A-Overall grade46 students7 students per teacher
#24 Largest Private Schools in Oklahoma City, OK
Light Christian Academy
Christian school (nondenominational) · Grades K–12
41 students
Oklahoma City, OK
AOverall grade41 students4 students per teacher
From official public records, updated October 2026.