Best Illinois Private High Schools Belonging to Middle States Association of Colleges and Secondary Schools (2026)
For the 2026 school year, there is 1 private high school belonging to Middle States Association of Colleges and Secondary School serving 6,319 students in Illinois. You can also find more schools membership associations in Illinois.
The top-ranked private high school belonging to Middle States Association of Colleges and Secondary School in Illinois is American School.
Learn how private schools assess leadership, grit, resilience, and character, and why these soft skills are becoming increasingly important in admissions.