For the 2026 school year, there are 4 private high schools belonging to International Baccalaureate (IB) World School serving 1,440 students in Illinois. You can also find more schools membership associations in Illinois.
The top-ranked private high schools belonging to International Baccalaureate (IB) World School in Illinois include British International School of Chicago-South Loop, Beacon Academy, and Daystar Academy.
The average acceptance rate is 92%, which is higher than the Illinois private high school average acceptance rate of 81%.
25% of private high schools belonging to International Baccalaureate (IB) World School in Illinois are religiously affiliated (most commonly Christian).
Top-Ranked Private High Schools Belonging to International Baccalaureate (IB) World School in Illinois (2026)
School
Location
Quick Facts
1726 W Berteau Ave
Chicago, IL 60613
(773) 857-3000
Chicago, IL 60613
(773) 857-3000
Gr: PK-9 | 196 students Avg. class size: 15 students Sports: 8 | Extracurrculars: 18 Tuition listed
Beacon Academy ![Beacon Academy Photo Beacon Academy Photo]()

Montessori School
1574 Sherman Avenue
Evanston, IL 60201
(224) 999-1177
Evanston, IL 60201
(224) 999-1177
Gr: 9-12 | 144 students Avg. class size: 12 students Sports: 12 | Extracurrculars: 21 Tuition listed
161 West 9th Street
Chicago, IL 60605
(773) 998-2472
Chicago, IL 60605
(773) 998-2472
Gr: NS-12 | 799 students Avg. class size: 15 students Sports: 12 Tuition & acceptance rate listed
1550 S State St
Chicago, IL 60605
(312) 791-0001
Chicago, IL 60605
(312) 791-0001
Gr: PK-12 | 301 students Avg. class size: 20 students Sports: 5 | Extracurrculars: 8 Tuition & acceptance rate listed
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