#1 Largest Private Schools in Naperville, IL
Saints Peter & Paul School
Diocesan school · Grades Pre-K–8
435 students
Naperville, IL
B-Overall grade435 students17 students per teacher
2026 lists
Largest Private Schools in Naperville, IL
The private schools in Naperville, IL with the most students. Top 10 of 10 schools.
#2 Largest Private Schools in Naperville, IL
All Saints Catholic Academy
Parish school · Grades Pre-K–8
414 students
Naperville, IL
A-Overall grade414 students14 students per teacher
#3 Largest Private Schools in Naperville, IL
Calvary Christian School
Christian school (nondenominational) · Grades Pre-K–8
257 students
Naperville, IL
AOverall grade257 students10 students per teacher
#4 Largest Private Schools in Naperville, IL
St. Raphael Catholic School
Diocesan school · Grades Pre-K–8
247 students
Naperville, IL
A-Overall grade247 students13 students per teacher
#5 Largest Private Schools in Naperville, IL
Bethany Lutheran Church and School
Lutheran (Missouri Synod) school · Grades Pre-K–8
165 students
Naperville, IL
BOverall grade165 students12 students per teacher
#6 Largest Private Schools in Naperville, IL
Dupage Montessori School
Montessori school · Grades Pre-K–8
137 students
Naperville, IL
B+Overall grade137 students9 students per teacher
#7 Largest Private Schools in Naperville, IL
Naperville Christian Academy
Christian school (nondenominational) · Grades Pre-K–12
126 students
Naperville, IL
A+Overall grade126 students6 students per teacher
#8 Largest Private Schools in Naperville, IL
Icn Noor Academy
Islamic school · Grades Pre-K–5
112 students
Naperville, IL
AOverall grade112 students11 students per teacher
#9 Largest Private Schools in Naperville, IL
Covenant Classical School
Christian school (nondenominational) · Grades K–8
109 students
Naperville, IL
B+Overall grade109 students10 students per teacher
#10 Largest Private Schools in Naperville, IL
Turning Pointe CN Day School
Special education school · Grades 1–12
49 students
Naperville, IL
AOverall grade49 students6 students per teacher
From official public records, updated October 2026.