Listed below are counties with the highest average endowment (2026).
The county with highest average private school endowment is Lake County, IN with $26M.
The county with lowest average private school endowment is St. Louis County, MO with $12M.
Endowment Range: $23M
$805M
Avg. Endowment: $61.6M
Average Endowment By County (2026)
County
Average Endowment
Schools with Highest Endowment
Rank: #1-31-3.
$26M
Rank: #1-31-3.
$26M
Rank: #1-31-3.
$26M
Rank: #44.
$25M
Rank: #55.
$24M
Rank: #6-96-9.
$23M
Rank: #6-96-9.
$23M
- Presidio Hill School ($1M)
- San Francisco Pacific Academy ($1M)
- San Francisco Waldorf School ($3.5M)
- St. Anne School ($4M)
- San Francisco Waldorf High School ($8M)
- The International School of San Francisco ($9M)
- The Bay School Of San Francisco ($10M)
- Katherine Delmar Burke School (Burke's) ($22M)
- Cathedral School For Boys ($25M)
- The Hamlin School ($31M)
Rank: #6-96-9.
$23M
Rank: #6-96-9.
$23M
Rank: #10-1210-12.
$22M
Rank: #10-1210-12.
$22M
Rank: #10-1210-12.
$22M
Rank: #1313.
$21M
Rank: #14-1514-15.
$20M
- Ecole Bilingue De Berkeley ($2M)
- Redwood Day ($2M)
- Saint Joseph Notre Dame High School ($3M)
- Bishop Odowd High School ($4M)
- Julia Morgan School For Girls ($5M)
- Seneca Family Of Agencies Maya Angelou Academy ($6M)
- Moreau Catholic High School ($11M)
- The College Preparatory School ($29M)
- Fusion Academy Berkeley ($32M)
- Fremont Christian School ($50M)
Rank: #14-1514-15.
$20M
Rank: #16-1716-17.
$17M
Rank: #16-1716-17.
$17M
Rank: #1818.
$15M
Rank: #19-2019-20.
$12M
Rank: #19-2019-20.
$12M
- Central Christian School ($1M)
- Ries Ballwin KinderCare ($1M)
- The Wilson School ($2M)
- Thomas Jefferson School ($3M)
- Lutheran High School North ($3.1M)
- Christian Brothers College High School ($4M)
- Rossman School ($11M)
- The Whitfield School ($15M)
- Chaminade College Prep School ($25M)
- Christ Community Lutheran School ($50M)
Frequently Asked Questions
What counties have the private schools with the highest endowment?
The counties with the highest endowment are Lake, IN ($26M average endowment), Clark, NV ($26M average endowment) and Suffolk, NY ($26M average endowment).
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