The average private high school endowment in Washington is $16.7M (2026-27).
The private high school in Washington with the highest endowment is Charles Wright Academy, with a endowment of $40M.
Quick Facts (26-27)
- # WA Schools Ranked: 14
- Top 20 Range (Endowment): $1M–$40M
- WA School Avg.: $17M
- National School Avg.: $30M










