#1 Best Private High Schools in Missouri
Rosati-Kain High School
Independent Catholic school · Grades 9–12
Smaller classes than 87% of Catholic schools in Missouri
Saint Louis, MO
A+Overall gradeAll girls127 students8 students per teacher
2026 lists
Best Private High Schools in Missouri
Private high schools in Missouri with the highest overall grades. Top 50 of 73 schools.
#2 Best Private High Schools in Missouri
Incarnate Word Academy
Independent Catholic school · Grades 9–12
100% of graduates go to four-year colleges
Saint Louis, MO
A+Overall gradeAll girls235 students9 students per teacher
#3 Best Private High Schools in Missouri
Villa Duchesne School
Independent Catholic school · Grades Pre-K–12
The smallest classes of any Catholic school in Saint Louis
Saint Louis, MO
A+Overall grade459 students4 students per teacher
#4 Best Private High Schools in Missouri
Notre Dame De Sion School
Independent Catholic school · Grades Pre-K–12
100% of graduates go to four-year colleges
Kansas City, MO
A+Overall grade544 students8 students per teacher
#5 Best Private High Schools in Missouri
Crossroads College Preparatory School
Independent school · Grades 7–12
100% of graduates go to four-year colleges
Saint Louis, MO
A+Overall grade125 students6 students per teacher
#6 Best Private High Schools in Missouri
Micds
Independent school · Grades Pre-K–12
One of the 3 largest independent schools in Missouri
Saint Louis, MO
A+Overall grade1,220 students9 students per teacher
#7 Best Private High Schools in Missouri
St. Louis Priory School
Independent Catholic school · Grades 7–12
100% of graduates go to four-year colleges
Saint Louis, MO
A+Overall gradeAll boys299 students8 students per teacher
#8 Best Private High Schools in Missouri
Kansas City Academy
Independent school · Grades 6–12
Smaller classes than 83% of independent schools in Missouri
Kansas City, MO
A+Overall grade80 students6 students per teacher
#9 Best Private High Schools in Missouri
Cor Jesu Academy
Independent Catholic school · Grades 9–12
100% of graduates go to four-year colleges
Saint Louis, MO
A+Overall gradeAll girls519 students11 students per teacher
#10 Best Private High Schools in Missouri
Thomas Jefferson Independent Day School
Independent school · Grades Pre-K–12
The only independent school in Joplin
Joplin, MO
A+Overall grade294 students9 students per teacher
#11 Best Private High Schools in Missouri
St. Teresa's Academy
Independent Catholic school · Grades 9–12
The only all-girls school in Kansas City
Kansas City, MO
A+Overall gradeAll girls570 students11 students per teacher
#12 Best Private High Schools in Missouri
Missouri Military Academy
Independent school · Grades 7–12
Small classes: about 6 students per teacher
Mexico, MO
A+Overall gradeAll boys182 students6 students per teacher
#13 Best Private High Schools in Missouri
Duchesne High School
Diocesan school · Grades 9–12
Smaller classes than 83% of Catholic schools in Missouri
Saint Charles, MO
A+Overall grade225 students8 students per teacher
#14 Best Private High Schools in Missouri
Principia School
Religious school · Grades Pre-K–12
The largest of 36 private schools in Missouri
Saint Louis, MO
A+Overall grade423 students8 students per teacher
#15 Best Private High Schools in Missouri
Clinton Christian Academy
Christian school (nondenominational) · Grades K–12
Smaller classes than 78% of Christian schools in Missouri
Clinton, MO
A+Overall grade162 students6 students per teacher
#16 Best Private High Schools in Missouri
St. Mary's South Side Catholic High School
Independent Catholic school · Grades 9–12
Smaller classes than 74% of Catholic schools in Missouri
Saint Louis, MO
A+Overall gradeAll boys203 students9 students per teacher
#17 Best Private High Schools in Missouri
Whitfield School
Independent school · Grades 6–12
98% of graduates go to four-year colleges
Saint Louis, MO
A+Overall grade407 students9 students per teacher
#18 Best Private High Schools in Missouri
St. Louis University High School
Independent Catholic school · Grades 9–12
One of the 3 largest Catholic schools in Missouri
Saint Louis, MO
AOverall gradeAll boys1,036 students12 students per teacher
#19 Best Private High Schools in Missouri
Visitation Academy
Independent Catholic school · Grades Pre-K–12
100% of graduates go to four-year colleges
Saint Louis, MO
AOverall gradeAll girls555 students9 students per teacher
#20 Best Private High Schools in Missouri
Westminster Christian Academy
Presbyterian school · Grades 7–12
One of the 3 largest Christian schools in Missouri
Town and Country, MO
AOverall grade940 students11 students per teacher
#21 Best Private High Schools in Missouri
Trinity Christian Academy
Christian school (nondenominational) · Grades Pre-K–12
95% of graduates go to four-year colleges
Hollister, MO
AOverall grade101 students8 students per teacher
#22 Best Private High Schools in Missouri
Lutheran High School of Kansas City
Lutheran (Missouri Synod) school · Grades 9–12
90% of graduates go to four-year colleges
Kansas City, MO
AOverall grade118 students11 students per teacher
#23 Best Private High Schools in Missouri
St. John Vianney High School
Independent Catholic school · Grades 9–12
The only all-boys school in Kirkwood
Kirkwood, MO
A-Overall gradeAll boys581 students12 students per teacher
#24 Best Private High Schools in Missouri
St. Paul Lutheran High School
Lutheran (Missouri Synod) school · Grades 9–12
Serving families in Concordia since at least 2011
Concordia, MO
A-Overall grade165 students10 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.