#1 Most Diverse Private Schools in Marion County, IN
Maria Montessori International Aca
Montessori school · Grades Pre-K–5
Largest group: 30% of students
Indianapolis, IN
B+Overall grade64 students8 students per teacher
2026 lists
Most Diverse Private Schools in Marion County, IN
Private schools in Marion County, IN with the most varied mix of students. Top 50 of 66 schools.
#2 Most Diverse Private Schools in Marion County, IN
Cornerstone Baptist Academy
Baptist school · Grades Pre-K–12
Largest group: 38% of students
Indianapolis, IN
A+Overall grade79 students7 students per teacher
#3 Most Diverse Private Schools in Marion County, IN
Little Flower Catholic School
Parish school · Grades Pre-K–8
Largest group: 40% of students
Indianapolis, IN
A+Overall grade353 students12 students per teacher
#4 Most Diverse Private Schools in Marion County, IN
St. Christopher School
Parish school · Grades Pre-K–6
Largest group: 41% of students
Indianapolis, IN
A+Overall grade185 students12 students per teacher
#5 Most Diverse Private Schools in Marion County, IN
Scecina Memorial High School
Diocesan school · Grades 9–12
Largest group: 42% of students
Indianapolis, IN
A+Overall grade454 students12 students per teacher
#6 Most Diverse Private Schools in Marion County, IN
Horizon Christian School
Christian school (nondenominational) · Grades K–12
Largest group: 44% of students
Indianapolis, IN
B+Overall grade343 students10 students per teacher
#7 Most Diverse Private Schools in Marion County, IN
School of Knowledge
Islamic school · Grades Pre-K–12
Largest group: 45% of students
Indianapolis, IN
A+Overall grade422 students10 students per teacher
#8 Most Diverse Private Schools in Marion County, IN
Calvary Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
Largest group: 45% of students
Indianapolis, IN
B+Overall grade244 students14 students per teacher
#9 Most Diverse Private Schools in Marion County, IN
Islamic Academy of Indianapolis
Islamic school · Grades Pre-K–8
Largest group: 45% of students
Indianapolis, IN
A-Overall grade92 students
#10 Most Diverse Private Schools in Marion County, IN
The Oaks Academy
Christian school (nondenominational) · Grades Pre-K–8
Largest group: 46% of students
Indianapolis, IN
A+Overall grade971 students8 students per teacher
#11 Most Diverse Private Schools in Marion County, IN
Trinity Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
Largest group: 46% of students
Indianapolis, IN
B+Overall grade148 students16 students per teacher
#12 Most Diverse Private Schools in Marion County, IN
Cardinal Ritter High School
Diocesan school · Grades 7–12
Largest group: 50% of students
Indianapolis, IN
B+Overall grade585 students14 students per teacher
#13 Most Diverse Private Schools in Marion County, IN
St. Joan of Arc
Parish school · Grades Pre-K–8
Largest group: 50% of students
Indianapolis, IN
A+Overall grade155 students7 students per teacher
#14 Most Diverse Private Schools in Marion County, IN
Calvary Christian School
Pentecostal school · Grades K–12
Largest group: 51% of students
Indianapolis, IN
BOverall grade216 students12 students per teacher
#15 Most Diverse Private Schools in Marion County, IN
International School of Indiana
Independent school · Grades Pre-K–12
Largest group: 53% of students
Indianapolis, IN
A+Overall grade423 students5 students per teacher
#16 Most Diverse Private Schools in Marion County, IN
Sycamore School
Independent school · Grades Pre-K–8
Largest group: 54% of students
Indianapolis, IN
A+Overall grade366 students7 students per teacher
#17 Most Diverse Private Schools in Marion County, IN
Legacy Learning Center
Independent school · Grades Pre-K–12
Largest group: 54% of students
Indianapolis, IN
AOverall grade271 students10 students per teacher
#18 Most Diverse Private Schools in Marion County, IN
Central Christian Academy
Christian school (nondenominational) · Grades Pre-K–12
Largest group: 54% of students
Indianapolis, IN
A+Overall grade204 students10 students per teacher
#19 Most Diverse Private Schools in Marion County, IN
Trinity Christian School
Church of God school · Grades Pre-K–12
Largest group: 57% of students
Indianapolis, IN
BOverall grade171 students17 students per teacher
#20 Most Diverse Private Schools in Marion County, IN
St. Lawrence Catholic School
Diocesan school · Grades Pre-K–8
Largest group: 59% of students
Indianapolis, IN
A+Overall grade196 students12 students per teacher
#21 Most Diverse Private Schools in Marion County, IN
Park Tudor School
Alternative school · Grades Pre-K–12
Largest group: 60% of students
Indianapolis, IN
B+Overall grade956 students10 students per teacher
#22 Most Diverse Private Schools in Marion County, IN
Holy Spirit Catholic School
Independent Catholic school · Grades Pre-K–8
Largest group: 61% of students
Indianapolis, IN
BOverall grade377 students18 students per teacher
#23 Most Diverse Private Schools in Marion County, IN
Burge Terrace Christian School
Baptist school · Grades Pre-K–6
Largest group: 62% of students
Indianapolis, IN
B+Overall grade145 students15 students per teacher
#24 Most Diverse Private Schools in Marion County, IN
Geo Focus Academy
Independent school · Grades K–12
Largest group: 62% of students
Indianapolis, IN
BOverall grade125 students11 students per teacher
From official public records, updated October 2026.