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Average Private School endowment in Washington

The average private school endowment in Washington is $41.8M (2026).

The private school in Washington with the highest endowment is Willows Preparatory School, with a endowment of $500M.

Quick Facts (2026)

# WA Schools Ranked: 48
Top 20 Range (Endowment): $40–$500
WA School Avg.: $42
National School Avg.: $49

Quick Facts (2026)

# WA Schools Ranked: 48
Top 20 Range (Endowment): $40–$500
WA School Avg.: $42
National School Avg.: $49

Washington Average Endowment (Trends)

View Data

Year	Washington (WA) avg
2025	$41.7
2024	$8.1
2023	$6.5
2022	$7.0
2021	$7.1
2020	$7.1
2019	$6.7
2018	$2.5
2017	$3.3

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Show school map — Washington (endowment range: $40–$500, avg $42)

Endowment Range: $2M $500M Avg. Endowment: $56.9M

Frequently Asked Questions

What is the Washington average private schools endowment?

The Washington average private schools endowment is $41.8M for 2026.

What are the private schools with the highest endowment in Washington?

The top ranked private schools in Washington include Willows Preparatory School, Cataldo Catholic School at St. Augustine's and Paramount Christian Academy.

What is private high school and private elementary school with the highest endowment in Washington?

The private high school with the highest endowment in Washington is Willows Preparatory School, with a value of $500.0M. The private elementary school with the highest endowment is Willows Preparatory School, with a value of $500.0M.

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