#1 Largest Private Schools in Rockford, IL
Rockford Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–12
695 students
Rockford, IL
BOverall grade695 students13 students per teacher
2026 lists
Largest Private Schools in Rockford, IL
The private schools in Rockford, IL with the most students. Top 15 of 15 schools.
#2 Largest Private Schools in Rockford, IL
Rockford Christian Schools
Christian school (nondenominational) · Grades Pre-K–12
639 students
Rockford, IL
BOverall grade639 students13 students per teacher
#3 Largest Private Schools in Rockford, IL
Boylan Catholic H. S.
Diocesan school · Grades 9–12
586 students
Rockford, IL
A+Overall grade586 students13 students per teacher
#4 Largest Private Schools in Rockford, IL
Christian Life Schools
Assembly of God school · Grades Pre-K–12
363 students
Rockford, IL
B-Overall grade363 students15 students per teacher
#5 Largest Private Schools in Rockford, IL
Holy Family Catholic School
Parish school · Grades Pre-K–8
321 students
Rockford, IL
AOverall grade321 students13 students per teacher
#6 Largest Private Schools in Rockford, IL
Keith Country Day School
Independent school · Grades Pre-K–12
195 students
Rockford, IL
AOverall grade195 students8 students per teacher
#7 Largest Private Schools in Rockford, IL
Berean Baptist Christian School
Baptist school · Grades Pre-K–12
124 students
Rockford, IL
B+Overall grade124 students11 students per teacher
#8 Largest Private Schools in Rockford, IL
Rockford Iqra' School
Islamic school · Grades Pre-K–12
109 students
Rockford, IL
AOverall grade109 students7 students per teacher
#9 Largest Private Schools in Rockford, IL
Cathedral Baptist School
Baptist school · Grades Pre-K–12
94 students
Rockford, IL
AOverall grade94 students9 students per teacher
#10 Largest Private Schools in Rockford, IL
Our Lady Sacred Heart Academy
Independent Catholic school · Grades Pre-K–12
86 students
Rockford, IL
A+Overall grade86 students6 students per teacher
#11 Largest Private Schools in Rockford, IL
Alpine Academy
Lutheran (ELCA) school · Grades Pre-K–7
80 students
Rockford, IL
A+Overall grade80 students9 students per teacher
#12 Largest Private Schools in Rockford, IL
Montessori Private Academy
Montessori school · Grades Pre-K–6
54 students
Rockford, IL
AOverall grade54 students5 students per teacher
#13 Largest Private Schools in Rockford, IL
Spectrum School
Independent school · Grades Pre-K–9
40 students
Rockford, IL
B+Overall grade40 students9 students per teacher
#14 Largest Private Schools in Rockford, IL
Alpine Christian School
Seventh-day Adventist school · Grades K–8
37 students
Rockford, IL
B+Overall grade37 students12 students per teacher
#15 Largest Private Schools in Rockford, IL
Veritas Christi Hybrid Academy
Christian school (nondenominational) · Grades 6–12
35 students
Rockford, IL
AOverall grade35 students4 students per teacher
From official public records, updated October 2026.