#1 Best Private High Schools in Oklahoma County, OK
Mercy School Institute
Islamic school · Grades Pre-K–12
100% of graduates go to four-year colleges
Edmond, OK
A+Overall grade393 students11 students per teacher
2026 lists
Best Private High Schools in Oklahoma County, OK
Private high schools in Oklahoma County, OK with the highest overall grades. Top 14 of 14 schools.
#2 Best Private High Schools in Oklahoma County, OK
Mount Saint Mary Catholic High School
Diocesan school · Grades 9–12
The smallest classes of any Catholic school in Oklahoma City
Oklahoma City, OK
A+Overall grade389 students9 students per teacher
#3 Best Private High Schools in Oklahoma County, OK
Casady School
Episcopal school · Grades Pre-K–12
100% of graduates go to four-year colleges
Oklahoma City, OK
A+Overall grade922 students8 students per teacher
#4 Best Private High Schools in Oklahoma County, OK
Heritage Hall
Independent school · Grades Pre-K–12
The largest of 15 independent schools in Oklahoma
Oklahoma City, OK
A+Overall grade870 students8 students per teacher
#5 Best Private High Schools in Oklahoma County, OK
Bishop McGuinness Catholic High School
Diocesan school · Grades 9–12
One of the 3 largest Catholic schools in Oklahoma
Oklahoma City, OK
A+Overall grade751 students13 students per teacher
#6 Best Private High Schools in Oklahoma County, OK
Life Christian Academy
Christian school (nondenominational) · Grades Pre-K–12
90% of graduates go to four-year colleges
Nicoma Park, OK
B+Overall grade130 students8 students per teacher
#7 Best Private High Schools in Oklahoma County, OK
Crossings Christian School
Christian school (nondenominational) · Grades Pre-K–12
One of the 3 largest Christian schools in Oklahoma
Oklahoma City, OK
B+Overall grade1,050 students12 students per teacher
#8 Best Private High Schools in Oklahoma County, OK
Oklahoma Christian Academy
Church of Christ school · Grades Pre-K–12
90% of graduates go to four-year colleges
Edmond, OK
BOverall grade547 students9 students per teacher
#9 Best Private High Schools in Oklahoma County, OK
Cristo Rey Oklahoma City Catholic High School
Independent Catholic school · Grades 9–12
One of 7 Catholic schools in Oklahoma City
Oklahoma City, OK
BOverall grade198 students12 students per teacher
#10 Best Private High Schools in Oklahoma County, OK
Oklahoma Christian School
Christian school (nondenominational) · Grades Pre-K–12
The largest of 72 Christian schools in Oklahoma
Edmond, OK
BOverall grade1,111 students13 students per teacher
#11 Best Private High Schools in Oklahoma County, OK
The Acad of Classical CHRN Studies
Christian school (nondenominational) · Grades Pre-K–12
100% of graduates go to four-year colleges
Oklahoma City, OK
BOverall grade862 students16 students per teacher
#12 Best Private High Schools in Oklahoma County, OK
The Academy of Classical Christian Studies
Christian school (nondenominational) · Grades Pre-K–12
94% of graduates go to four-year colleges
Oklahoma City, OK
B-Overall grade859 students13 students per teacher
#13 Best Private High Schools in Oklahoma County, OK
Christian Heritage Academy
Christian school (nondenominational) · Grades K–12
88% of graduates go to four-year colleges
Del City, OK
B-Overall grade640 students15 students per teacher
#14 Best Private High Schools in Oklahoma County, OK
The Academy of Classical Christian Midtown Campus
Christian school (nondenominational) · Grades Pre-K–12
88% of graduates go to four-year colleges
Oklahoma City, OK
B-Overall grade871 students13 students per teacher
Grades compare each school's official facts, such as class size, how long it has served families and where graduates go, with similar schools. They're a starting point: visit, ask questions and trust what you see.