#25 Best Private 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
2026 lists
Best Private Schools in Missouri
Private schools in Missouri with the highest overall grades. Top 50 of 313 schools.
#26 Best Private 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
#27 Best Private 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
#28 Best Private 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
#29 Best Private 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
#30 Best Private 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
#31 Best Private Schools in Missouri
Rohan Woods School
Independent school · Grades Pre-K–6
The smallest classes of any independent school in Saint Louis
Saint Louis, MO
A+Overall grade68 students3 students per teacher
#32 Best Private Schools in Missouri
Lynwood Christian Academy
Christian school (nondenominational) · Grades Pre-K–8
The smallest classes of any Christian school in Cape Girardeau
Cape Girardeau, MO
A+Overall grade101 students8 students per teacher
#33 Best Private 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
#34 Best Private Schools in Missouri
Academy of the Sacred Heart
Independent Catholic school · Grades Pre-K–8
Smaller classes than 68% of Catholic schools in Missouri
Saint Charles, MO
A+Overall grade164 students10 students per teacher
#35 Best Private Schools in Missouri
Christian Chapel Academy
Christian school (nondenominational) · Grades Pre-K–8
Smaller classes than 65% of Christian schools in Missouri
Columbia, MO
A+Overall grade153 students9 students per teacher
#36 Best Private Schools in Missouri
St. Andrew School
Diocesan school · Grades Pre-K–8
Smaller classes than 76% of Catholic schools in Missouri
Tipton, MO
A+Overall grade93 students9 students per teacher
#37 Best Private Schools in Missouri
The St. Michael School of Clayton
Episcopal school · Grades Pre-K–8
Smaller classes than 98% of Christian schools in Missouri
Saint Louis, MO
A+Overall grade71 students3 students per teacher
#38 Best Private Schools in Missouri
St. Roch School
Parish school · Grades Pre-K–8
Serving families in Saint Louis since at least 2011
Saint Louis, MO
A+Overall grade130 students11 students per teacher
#39 Best Private Schools in Missouri
St. Cletus School
Parish school · Grades Pre-K–8
Smaller classes than 70% of Catholic schools in Missouri
Saint Charles, MO
A+Overall grade176 students10 students per teacher
#40 Best Private Schools in Missouri
St. Charles Borromeo Accadmy
Diocesan school · Grades Pre-K–8
Serving families in Kansas City since at least 2011
Kansas City, MO
A+Overall grade162 students12 students per teacher
#41 Best Private Schools in Missouri
St. Francis Xavier School
Parish school · Grades Pre-K–8
The only Catholic school in Sikeston
Sikeston, MO
A+Overall grade63 students7 students per teacher
#42 Best Private 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
#43 Best Private Schools in Missouri
St. James School
Parish school · Grades Pre-K–8
The smallest classes of any Catholic school in Saint Joseph
Saint Joseph, MO
A+Overall grade88 students7 students per teacher
#44 Best Private Schools in Missouri
St. Therese School
Diocesan school · Grades K–8
Smaller classes than 75% of Catholic schools in Missouri
Kansas City, MO
A+Overall grade604 students9 students per teacher
#45 Best Private Schools in Missouri
Little Flower Catholic School
Parish school · Grades K–8
Smaller classes than 82% of Catholic schools in Missouri
Saint Louis, MO
A+Overall grade80 students8 students per teacher
#46 Best Private Schools in Missouri
St. John the Baptist School
Parish school · Grades Pre-K–8
Smaller classes than 81% of Catholic schools in Missouri
Villa Ridge, MO
A+Overall grade92 students8 students per teacher
#47 Best Private Schools in Missouri
Salem Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
Smaller classes than 76% of Christian schools in Missouri
Affton, MO
A+Overall grade84 students7 students per teacher
#48 Best Private Schools in Missouri
Heritage Academy
Christian school (nondenominational) · Grades Pre-K–12
The smallest classes of any Christian school in Columbia
Columbia, MO
AOverall grade74 students4 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.