The average private high school tuition in Illinois is $15,969 per year (2026).
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 (2026)
- # IL Schools Ranked: 173
- Top 20 Range (Tuition): $2,000–$4,494
- IL School Avg.: $15,812
- National School Avg.: $14,500













