Illinois Boarding Schools

Based in Lake Forest, Lake Forest Academy serves 452 students in grades 9-12 as a co-ed college-preparatory boarding school. Tuition is $79,775 and 30% of students receive financial aid. Classes average 12 students.
Saint Bede Academy is a co-ed college-preparatory boarding school in Peru serving grades 9-12, with 293 students. Tuition is $25,000 and 29% of students receive financial aid. Classes average 18 students.

Quick Facts (26-27)

  • # Boarding Schools: 2
  • # Students Served: 745

Quick Facts (26-27)

  • # Boarding Schools: 2
  • # Students Served: 745

Top Illinois Boarding Schools (2026-27)

Lake Forest Academy Photo - Lake Forest Academy's 452 students are from over 19 states and 40 countries. Our student body includes 22% international students, 43% domestic students of color, and 34% of students receive financial aid.
Gr: 9-12, PG | 452 students
Student-teacher ratio: 6:1
Avg. class size: 12 students
Acceptance rate: 34%
Tuition listed
1500 West Kennedy Road
Lake Forest, IL 60045
(847) 615-3267
(2)
Saint Bede Academy Photo - With an average student population of 300, our small class sizes offer students one-on-one interaction with their instructors.
Gr: 9-12 | 293 students
Student-teacher ratio: 12:1
Avg. class size: 18 students
Acceptance rate: 80%
Tuition listed
Catholic
24 W US Highway 6
Peru, IL 61354
(815) 250-0285

Historical Statistics Overview

This State (IL)
US (avg. per state)
# Schools
2 Schools
6.4 Schools

Showing 2016–2025. Full 12-year historical data available below ↓

# Students
745 Students
2,517 Students

Showing 2016–2025. Full 12-year historical data available below ↓

Academics and Faculty

Midwest Region*
US
* Fewer than 3 schools in Illinois report these figures, so the Midwest regional average is shown.
Average Student-Teacher Ratio
9:1
8:1

Showing 2016–2025. Full 12-year historical data available below ↓

% Faculty with Advanced Degree
69%
69%

Showing 2016–2025. Full 12-year historical data available below ↓

Academic Programs

Midwest Region*
US
* Fewer than 3 schools in Illinois report these figures, so the Midwest regional average is shown.
Avg. AP Courses
20
22

Showing 2016–2025. Full 12-year historical data available below ↓

Avg. IB Courses
None reported
28
Avg. Class Size
14
13

Showing 2016–2025. Full 12-year historical data available below ↓

Academic Performance

Midwest Region*
US
* Fewer than 3 schools in Illinois report these figures, so the Midwest regional average is shown.
Avg. SAT Score
1274
1271
Avg. ACT Score
27
27

Showing 2016–2025. Full 12-year historical data available below ↓

Avg. Acceptance Rate
68%
59%

Showing 2016–2025. Full 12-year historical data available below ↓

Tuition and Finances

Midwest Region*
US
* Fewer than 3 schools in Illinois report these figures, so the Midwest regional average is shown.
Avg. Tuition (Boarding)
$45,840
$64,455

Showing 2016–2025. Full 12-year historical data available below ↓

Avg. Tuition (Day)
$26,003
$38,004

Showing 2016–2025. Full 12-year historical data available below ↓

Avg. Tuition (International)
$44,501
$62,450

Showing 2016–2025. Full 12-year historical data available below ↓

Avg. Financial Aid Rate
48%
42%

Showing 2016–2025. Full 12-year historical data available below ↓

Avg. Financial Aid Grant
$16,480
$27,075

Showing 2016–2025. Full 12-year historical data available below ↓

Avg. Endowment
$105 MM
$84 MM

Showing 2016–2025. Full 12-year historical data available below ↓

Student Diversity

Midwest Region*
US
* Fewer than 3 schools in Illinois report these figures, so the Midwest regional average is shown.
% Students of Color
32%
30%

Showing 2016–2025. Full 12-year historical data available below ↓

% International Students
21%
27%

Showing 2016–2025. Full 12-year historical data available below ↓

% Boarding Students
47%
59%

Showing 2016–2025. Full 12-year historical data available below ↓

Download state snapshot: CSV | XML | JSON Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission.

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.

Recent Articles

Teacher Office Hours and Academic Help at Boarding Schools
Teacher Office Hours and Academic Help at Boarding Schools
Explore how boarding school students access teachers, office hours, evening tutoring, and academic support. Learn what parents should ask about availability, supervision, scheduling conflicts, and help when students struggle academically.
Boarding School Academic Schedule Flexibility
Boarding School Academic Schedule Flexibility
Discover how boarding schools handle full classes, scheduling conflicts, waitlists, and alternative courses. Learn what parents should ask to protect academic progress, graduation requirements, and college preparation before enrolling their child.
How Much Free Time Do Boarding Students Get?
How Much Free Time Do Boarding Students Get?
How much free time do boarding students really have? Learn how to evaluate schedules, homework, weekend obligations, activity requirements, and everyday routines before choosing a school that fits your child.

Featured Schools