The average private high school tuition in Illinois is $14,315 per year (2026-27).
The private high school with the lowest tuition is New Hope Christian Academy and Pana Christian Academy, each with a tuition of $2,000.
Quick Facts (26-27)
- # IL Schools Ranked: 154
- Top 20 Range (Tuition): $2,000–$4,500
- IL School Avg.: $14,315
- National School Avg.: $13,513













