#1 Largest Private Schools in Elgin, IL
Harvest Christian Academy
Christian school (nondenominational) · Grades Pre-K–12
438 students
Elgin, IL
BOverall grade438 students12 students per teacher
2026 lists
Largest Private Schools in Elgin, IL
The private schools in Elgin, IL with the most students. Top 9 of 9 schools.
#2 Largest Private Schools in Elgin, IL
Westminster Christian School
Christian school (nondenominational) · Grades Pre-K–12
289 students
Elgin, IL
BOverall grade289 students13 students per teacher
#3 Largest Private Schools in Elgin, IL
St. Edward Central Catholic High School
Diocesan school · Grades 9–12
207 students
Elgin, IL
A+Overall grade207 students10 students per teacher
#4 Largest Private Schools in Elgin, IL
Elgin Academy
Independent school · Grades Pre-K–12
171 students
Elgin, IL
B+Overall grade171 students7 students per teacher
#5 Largest Private Schools in Elgin, IL
St. Thomas More Elementary School
Diocesan school · Grades Pre-K–8
145 students
Elgin, IL
A+Overall grade145 students12 students per teacher
#6 Largest Private Schools in Elgin, IL
St. Mary School
Diocesan school · Grades Pre-K–8
111 students
Elgin, IL
A+Overall grade111 students10 students per teacher
#7 Largest Private Schools in Elgin, IL
St. Edward Catholic Preparatory Academy
Diocesan school · Grades Pre-K–8
90 students
Elgin, IL
A-Overall grade90 students5 students per teacher
#8 Largest Private Schools in Elgin, IL
Institute of Islamic Education
Islamic · Montessori · Grades 6–12
73 students
Elgin, IL
BOverall grade73 students12 students per teacher
#9 Largest Private Schools in Elgin, IL
Summit School
Special education school · Grades 1–12
53 students
Elgin, IL
AOverall grade53 students6 students per teacher
From official public records, updated October 2026.