#1 Most Diverse Private Schools in St. Louis County, MO
St. Frances Cabrini Academy
Parish school · Grades K–8
Largest group: 34% of students
Saint Louis, MO
B+Overall grade185 students15 students per teacher
2026 lists
Most Diverse Private Schools in St. Louis County, MO
Private schools in St. Louis County, MO with the most varied mix of students. Top 50 of 117 schools.
#2 Most Diverse Private Schools in St. Louis County, MO
Al-Salam Day School
Islamic school · Grades K–12
Largest group: 40% of students
Manchester, MO
A+Overall grade278 students9 students per teacher
#3 Most Diverse Private Schools in St. Louis County, MO
Rosati-Kain High School
Independent Catholic school · Grades 9–12
Largest group: 40% of students
Saint Louis, MO
A+Overall gradeAll girls127 students8 students per teacher
#4 Most Diverse Private Schools in St. Louis County, MO
Crossroads College Preparatory School
Independent school · Grades 7–12
Largest group: 40% of students
Saint Louis, MO
A+Overall grade125 students6 students per teacher
#5 Most Diverse Private Schools in St. Louis County, MO
Tower Grove Christian Academy
Baptist school · Grades Pre-K–8
Largest group: 41% of students
Saint Louis, MO
A+Overall grade101 students10 students per teacher
#6 Most Diverse Private Schools in St. Louis County, MO
The Freedom School
Presbyterian school · Grades Pre-K–8
Largest group: 45% of students
Saint Louis, MO
A+Overall grade115 students10 students per teacher
#7 Most Diverse Private Schools in St. Louis County, MO
Grace Christian Academy
Christian school (nondenominational) · Grades K–8
Largest group: 46% of students
Florissant, MO
A+Overall grade54 students5 students per teacher
#8 Most Diverse Private Schools in St. Louis County, MO
Christian Academy of Greater St. Louis
Church of Christ school · Grades Pre-K–12
Largest group: 47% of students
Saint Louis, MO
A+Overall grade103 students8 students per teacher
#9 Most Diverse Private Schools in St. Louis County, MO
Thomas Jefferson School
Independent school · Grades 7–12
Largest group: 47% of students
Saint Louis, MO
A+Overall grade74 students4 students per teacher
#10 Most Diverse Private Schools in St. Louis County, MO
Montessori Lab School at Grand Center
Montessori school · Grades Pre-K–5
Largest group: 49% of students
Saint Louis, MO
BOverall grade91 students23 students per teacher
#11 Most Diverse Private Schools in St. Louis County, MO
Greenways Academy
Alternative school · Grades 1–12
Largest group: 50% of students
Saint Louis, MO
BOverall grade3,015 students
#12 Most Diverse Private Schools in St. Louis County, MO
St. Catherine Laboure School
Parish school · Grades K–8
Largest group: 50% of students
Saint Louis, MO
BOverall grade482 students18 students per teacher
#13 Most Diverse Private Schools in St. Louis County, MO
St. Roch School
Parish school · Grades Pre-K–8
Largest group: 50% of students
Saint Louis, MO
A+Overall grade130 students11 students per teacher
#14 Most Diverse Private Schools in St. Louis County, MO
Blessed Teresa of Calcutta School
Diocesan school · Grades K–8
Largest group: 52% of students
Ferguson, MO
A-Overall grade160 students12 students per teacher
#15 Most Diverse Private Schools in St. Louis County, MO
St. Ann Catholic School
Parish school · Grades Pre-K–8
Largest group: 54% of students
Saint Louis, MO
B+Overall grade184 students13 students per teacher
#16 Most Diverse Private Schools in St. Louis County, MO
Al-Manara Academy
Islamic school · Grades Pre-K–8
Largest group: 54% of students
Manchester, MO
A-Overall grade84 students8 students per teacher
#17 Most Diverse Private Schools in St. Louis County, MO
Incarnate Word Academy
Independent Catholic school · Grades 9–12
Largest group: 55% of students
Saint Louis, MO
A+Overall gradeAll girls235 students9 students per teacher
#18 Most Diverse Private Schools in St. Louis County, MO
Central Christian School
Presbyterian school · Grades Pre-K–6
Largest group: 56% of students
Saint Louis, MO
A+Overall grade171 students9 students per teacher
#19 Most Diverse Private Schools in St. Louis County, MO
Micds
Independent school · Grades Pre-K–12
Largest group: 58% of students
Saint Louis, MO
A+Overall grade1,220 students9 students per teacher
#20 Most Diverse Private Schools in St. Louis County, MO
Whitfield School
Independent school · Grades 6–12
Largest group: 58% of students
Saint Louis, MO
A+Overall grade407 students9 students per teacher
#21 Most Diverse Private Schools in St. Louis County, MO
St. Mary's South Side Catholic High School
Independent Catholic school · Grades 9–12
Largest group: 58% of students
Saint Louis, MO
A+Overall gradeAll boys203 students9 students per teacher
#22 Most Diverse Private Schools in St. Louis County, MO
Immanuel Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
Largest group: 58% of students
Olivette, MO
AOverall grade100 students11 students per teacher
#23 Most Diverse Private Schools in St. Louis County, MO
Holy Spirit Catholic School
Parish school · Grades Pre-K–8
Largest group: 59% of students
Maryland Heights, MO
B+Overall grade174 students15 students per teacher
#24 Most Diverse Private Schools in St. Louis County, MO
The Wilson School
Independent school · Grades Pre-K–6
Largest group: 59% of students
Clayton, MO
A-Overall grade147 students7 students per teacher
From official public records, updated October 2026.