For the 2025-26 school year, there are 2 college-prep and junior boarding schools serving 745 students located throughout Illinois.
You can also browse our full boarding school directory or specify additional search criteria.
Top Illinois Boarding Schools (2025-26)
School
Location
Quick Facts
1500 West Kennedy Road
Lake Forest, IL 60045
(847) 615-3267
Lake Forest, IL 60045
(847) 615-3267
Gr: 9-12, PG | 452 students Student-teacher ratio: 6:1 Avg. class size: 12 students Acceptance rate: 34% Tuition listed
Saint Bede Academy![Saint Bede Academy Photo - With an average student population of 300, our small class sizes offer students one-on-one interaction with their instructors.]( "Saint Bede Academy Photo - With an average student population of 300, our small class sizes offer students one-on-one interaction with their instructors.")
(Catholic)
24 W US Highway 6
Peru, IL 61354
(815) 250-0285
Peru, IL 61354
(815) 250-0285
Gr: 9-12 | 293 students Student-teacher ratio: 12:1 Avg. class size: 18 students Acceptance rate: 80% Tuition listed
Frequently Asked Questions
How many boarding schools are located in Illinois?
There are 2 college-preparatory boarding schools located in Illinois.
What is the oldest boarding school in Illinois?
Lake Forest Academy, founded in 1857, is the oldest boarding school in Illinois.
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