The average private high school endowment in Michigan is $41.7M (2026-27).
The private high school in Michigan with the highest endowment is Cranbrook Schools, with a endowment of $345M.
Quick Facts (2026-27)
- # MI Schools Ranked: 17
- Top 20 Range (Endowment): $1–$345
- MI School Avg.: $38
- National School Avg.: $35










