#1 Best Private Middle 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
2026 lists
Best Private Middle Schools in Missouri
Private schools in Missouri with middle-school grades and the highest overall grades. Top 50 of 268 schools.
#2 Best Private Middle Schools in Missouri
St. Patrick School
Diocesan school · Grades Pre-K–8
Smaller classes than 96% of Catholic schools in Missouri
Kansas City, MO
A+Overall grade134 students6 students per teacher
#3 Best Private Middle 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
#4 Best Private Middle Schools in Missouri
St. Regis Academy
Diocesan school · Grades Pre-K–8
One of the most diverse private schools in Missouri
Kansas City, MO
A+Overall grade143 students9 students per teacher
#5 Best Private Middle 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 Middle Schools in Missouri
Thomas Jefferson School
Independent school · Grades 7–12
100% of graduates go to four-year colleges
Saint Louis, MO
A+Overall grade74 students4 students per teacher
#7 Best Private Middle 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
#8 Best Private Middle 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
#9 Best Private Middle 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
#10 Best Private Middle Schools in Missouri
Al-Salam Day School
Islamic school · Grades K–12
One of the 3 largest private schools in Missouri
Manchester, MO
A+Overall grade278 students9 students per teacher
#11 Best Private Middle Schools in Missouri
The Freedom School
Presbyterian school · Grades Pre-K–8
Smaller classes than 62% of Christian schools in Missouri
Saint Louis, MO
A+Overall grade115 students10 students per teacher
#12 Best Private Middle Schools in Missouri
Christ the King Catholic School
Parish school · Grades Pre-K–8
Smaller classes than 73% of Catholic schools in Missouri
Saint Louis, MO
A+Overall grade186 students9 students per teacher
#13 Best Private Middle Schools in Missouri
Christian Academy of Greater St. Louis
Church of Christ school · Grades Pre-K–12
Smaller classes than 65% of Christian schools in Missouri
Saint Louis, MO
A+Overall grade103 students8 students per teacher
#14 Best Private Middle Schools in Missouri
Mary Immaculate Elementary School
Diocesan school · Grades Pre-K–8
The only Catholic school in Kirksville
Kirksville, MO
A+Overall grade75 students6 students per teacher
#15 Best Private Middle Schools in Missouri
All Saints School
Parish school · Grades Pre-K–8
The only Catholic school in Saint Peters
Saint Peters, MO
A+Overall grade125 students7 students per teacher
#16 Best Private Middle Schools in Missouri
Tower Grove Christian Academy
Baptist school · Grades Pre-K–8
One of the most diverse private schools in Missouri
Saint Louis, MO
A+Overall grade101 students10 students per teacher
#17 Best Private Middle 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
#18 Best Private Middle Schools in Missouri
St. Gabriel Catholic School
Diocesan school · Grades Pre-K–8
Smaller classes than 63% of Catholic schools in Missouri
Kansas City, MO
A+Overall grade126 students10 students per teacher
#19 Best Private Middle 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
#20 Best Private Middle 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
#21 Best Private Middle Schools in Missouri
Heartland Christian Academy
Christian school (nondenominational) · Grades Pre-K–12
Smaller classes than 88% of Christian schools in Missouri
Bethel, MO
A+Overall grade88 students5 students per teacher
#22 Best Private Middle Schools in Missouri
St. Mary Cathedral School
Diocesan school · Grades Pre-K–8
Smaller classes than 85% of Catholic schools in Missouri
Cape Girardeau, MO
A+Overall grade89 students8 students per teacher
#23 Best Private Middle Schools in Missouri
Islamic School of Greater Kansas City
Islamic school · Grades Pre-K–12
One of the 3 largest private schools in Missouri
Kansas City, MO
A+Overall grade332 students12 students per teacher
#24 Best Private Middle 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
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.