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
1610 Main St
Crete, IL 60417
(708) 672-3262
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 American School Photo]()

Alternative School
2200 E 170th St
Lansing, IL 60438
(708) 418-2800
Lansing, IL 60438
(708) 418-2800
Gr: 6-12 | 6,319 students Tuition & acceptance rate listed
200 N Roselle Road
Schaumburg, IL 60194
(847) 885-3230
Schaumburg, IL 60194
(847) 885-3230
Gr: PK-12 | 889 students Avg. class size: 17 students Sports: 7 | Extracurrculars: 12 Tuition & acceptance rate listed
9300 Capitol Drive
Wheeling, IL 60090
(847) 850-5490
Wheeling, IL 60090
(847) 850-5490
Gr: NS-12 | 100 students Avg. class size: 20 students Sports: 7 | Extracurrculars: 7 Tuition listed
Recent Articles
Private School Fees Increase Mid-Year: A Parent Action Plan
A 2026 parent action plan for managing mid-year private school tuition increases, including contracts, negotiation tips, and financial options.
Private School Scholarship Scams & Red Flags to Watch Out For (2026 Guide)
Learn how to spot private school scholarship scams in 2026, including red flags, real examples, and expert tips to protect families.
Diversity in Private Schools: Progress and Obstacles in 2026
Explore how private schools are advancing diversity in 2026, key gains made, ongoing challenges, and what families should know.


