The average private school endowment in Delaware is $30.7M (2026-27).
The private school in Delaware with the highest endowment is Tower Hill School, with a endowment of $66M.
Quick Facts (2026-27)
- # DE Schools Ranked: 7
- Top 20 Range (Endowment): $1–$66
- DE School Avg.: $14
- National School Avg.: $32





