Best Illinois Private High Schools Belonging to Christian Schools International (CSI) (2026)

For the 2026 school year, there are 6 private high schools belonging to Christian Schools International (CSI) serving 1,551 students in Illinois. You can also find more schools membership associations in Illinois.
The top-ranked private high schools belonging to Christian Schools International (CSI) in Illinois include Chicago Christian High School, Illiana Christian High School, and Parkview Christian Academy.
The average acceptance rate is 91%, which is higher than the Illinois private high school average acceptance rate of 81%.
100% of private high schools belonging to Christian Schools International (CSI) in Illinois are religiously affiliated (most commonly Christian and Calvinist).

Top-Ranked Private High Schools Belonging to Christian Schools International (CSI) in Illinois (2026)

School
Location
Quick Facts
Chicago Christian High School
(Christian)
12001 S Oak Park Ave
Palos Heights, IL 60463
(708) 388-7650
Gr: 9-12 | 490 students Tuition & acceptance rate listed
2261 Indiana Ave
Lansing, IL 60438
(219) 558-7066
Gr: 9-12 | 474 students Avg. class size: 22 students Tuition listed
Parkview Christian Academy
(Christian)
(3)
202 East Countryside Parkway
Yorkville, IL 60560
(630) 553-5158
Gr: PK-12 | 394 students Avg. class size: 20 students Sports: 9 | Extracurrculars: 5 Tuition listed
Elim Christian School
Special Education School (Calvinist)
(4)
13020 S Central Ave
Palos Heights, IL 60463
(708) 389-0555
Gr: 10-12 | 4 students
1236 North 10th St.
Quincy, IL 62301
(217) 223-5698
Gr: PK-12 | 39 students
Unity Christian Elementary School
(Christian)
1000 11th Ave
Fulton, IL 61252
(815) 589-3912
Gr: K-12 | 150 students Avg. class size: 12 students

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