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Average Private High School endowment in California

The average private high school endowment in California is $31.5M (2026-27).

The private high school in California with the highest endowment is The Thacher School, with a endowment of $206M.

Quick Facts (2026-27)

# CA Schools Ranked: 78
Top 20 Range (Endowment): $50–$206
CA School Avg.: $31
National School Avg.: $35

Quick Facts (2026-27)

# CA Schools Ranked: 78
Top 20 Range (Endowment): $50–$206
CA School Avg.: $31
National School Avg.: $35

California Average Endowment (Trends)

View Data

Year	California (CA) avg
2025	$30.4
2024	$24.6
2023	$24.3
2022	$25.6
2021	$24.9
2020	$23.2
2019	$23.5
2018	$16.3

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Show school map — California (endowment range: $50–$206, avg $31)

Endowment Range: $40M $206M Avg. Endowment: $57.4M

Frequently Asked Questions

What is the California average private high schools endowment?

The California average private high schools endowment is $31.5M for 2026-27.

What are the private high schools with the highest endowment in California?

The top ranked private high schools in California include The Thacher School, The Webb Schools and The Bishop's School.

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