The average private high school endowment in Delaware is $0M (2026-27).
The private high school in Delaware with the highest endowment is Tower Hill School, with a endowment of $62M.
Quick Facts (2026-27)
- # DE Schools Ranked: 5
- Top 20 Range (Endowment): $3–$62
- DE School Avg.: $18
- National School Avg.: $31




