#25 Largest Private Schools in Dupage County, IL
Glenoaks Therapeutic Day Schools
Special education school · Grades 6–12
163 students
Glendale Heights, IL
B-Overall grade163 students13 students per teacher
2026 lists
Largest Private Schools in Dupage County, IL
The private schools in Dupage County, IL with the most students. Top 50 of 64 schools.
From official public records, updated October 2026.