Alexander Graham Bell Montessori School Photo - Math work, learning about place value.

Best Illinois Private High Schools Belonging to National Council for Private School Accreditation (2026)

For the 2026 school year, there are 4 private high schools belonging to National Council for Private School Accreditation serving 7,566 students in Illinois. You can also find more schools membership associations in Illinois.
The top-ranked private high schools belonging to National Council for Private School Accreditation in Illinois include Illinois Lutheran High School, Schaumburg Christian School, and American School.
The average acceptance rate is 98%, which is higher than the Illinois private high school average acceptance rate of 81%.
50% of private high schools belonging to National Council for Private School Accreditation in Illinois are religiously affiliated (most commonly Baptist and Wisconsin Evangelical Lutheran Synod).

Top-Ranked Private High Schools Belonging to National Council for Private School Accreditation in Illinois (2026)

School
Location
Quick Facts
Illinois Lutheran High School
Illinois Lutheran High School Photo - Educating for Time & Eternity!
(Wisconsin Evangelical Lutheran Synod)
(4)
1610 Main St
Crete, IL 60417
(708) 672-3262
Gr: PK-12 | 258 students Avg. class size: 20 students Sports: 8 | Extracurrculars: 12 Tuition & acceptance rate listed
American School
American School Photo
Alternative School
2200 E 170th St
Lansing, IL 60438
(708) 418-2800
Gr: 6-12 | 6,319 students Tuition & acceptance rate listed
Schaumburg Christian School
(Baptist)
(52)
200 N Roselle Road
Schaumburg, IL 60194
(847) 885-3230
Gr: PK-12 | 889 students Avg. class size: 17 students Sports: 7 | Extracurrculars: 12 Tuition & acceptance rate listed
Alexander Graham Bell Montessori School
Alexander Graham Bell Montessori School Photo - Math work, learning about place value.
Montessori School
(3)
9300 Capitol Drive
Wheeling, IL 60090
(847) 850-5490
Gr: NS-12 | 100 students Avg. class size: 20 students Sports: 7 | Extracurrculars: 7 Tuition listed

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