The average private high school endowment in District Of Columbia is $37.7M (2025-26).
The private high school in District Of Columbia with the highest endowment is Sidwell Friends School, with a endowment of $80M.
Endowment Range: $1M
$80M
Avg. Endowment: $37.7M
Average Private High School endowment in District Of Columbia (2025-26)
School
Endowment
Grades
Location
Rank: #11.
Sidwell Friends School
(Friends)
Endowment: $80 M
Grades: PK-12
3825 Wisconsin Ave NW
Washington, DC 20016
(202) 537-8100
Washington, DC 20016
(202) 537-8100
Rank: #2 - 62. - 6.
Endowment: $50 M
Grades: PK-12
2001 Wisconsin Avenue NW
Washington, DC 20007
(202) 280-6780
Washington, DC 20007
(202) 280-6780
Rank: #2 - 62. - 6.
Endowment: $50 M
Grades: PK-12
4200 Davenport Street, NW
Washington, DC 20016
(202) 274-3200
Washington, DC 20016
(202) 274-3200
Rank: #2 - 62. - 6.
Endowment: $50 M
Grades: K-12
3000 Cathedral Avenue NW
Washington, DC 20008
(202) 939-8814
Washington, DC 20008
(202) 939-8814
Rank: #2 - 62. - 6.
St. Johns College High School
(Catholic)
Endowment: $50 M
Grades: 9-12
2607 Military Road NW, Chevy Chase
Washington, DC 20015
(202) 363-2316
Washington, DC 20015
(202) 363-2316
Rank: #2 - 62. - 6.
Ujamaa School
(2)
Endowment: $50 M
Grades: K-9
1554 8th St Nw
Washington, DC 20001
(202) 232-2997
Washington, DC 20001
(202) 232-2997
Rank: #77.
Endowment: $30 M
Grades: 9-12
19 I Street NW
Washington, DC 20001
(202) 336-7100
Washington, DC 20001
(202) 336-7100
Rank: #88.
Washington International School![Washington International School Photo - The Primary School outdoor play area includes a field used for a variety of activities.]( "Washington International School Photo - The Primary School outdoor play area includes a field used for a variety of activities.")
Special Program Emphasis
Endowment: $10 M
Grades: NS-12
3100 Macomb Street NW
Washington, DC 20008
(202) 243-1800
Washington, DC 20008
(202) 243-1800
Rank: #99.
St. Albans School![St. Albans School Photo]( "St. Albans School Photo")
All-boys (Episcopal)
Endowment: $6 M
Grades: 4-12
Mount St Alban
Washington, DC 20016
(202) 537-6440
Washington, DC 20016
(202) 537-6440
Rank: #1010.
St. Anselm's Abbey School![St. Anselm's Abbey School Photo - Our rigorous curriculum is second to none. You will take 7APs to graduate from our school. Students receive over $5 million dollars in merit scholarships to college each year.]( "St. Anselm's Abbey School Photo - Our rigorous curriculum is second to none. You will take 7APs to graduate from our school. Students receive over $5 million dollars in merit scholarships to college each year.")
All-boys | Alternative School (Catholic)
Endowment: $1 M
Grades: 6-12
4501 South Dakota Ave Ne
Washington, DC 20017
(202) 269-2350
Washington, DC 20017
(202) 269-2350
Frequently Asked Questions
What is the District Of Columbia average private high schools endowment?
The District Of Columbia average private high schools endowment is $37.7M for 2025-26.
What are the private high schools with the highest endowment in District Of Columbia?
The top ranked private high schools in District Of Columbia include Sidwell Friends School, British International School of Washington and Georgetown Day School.
Recent Articles
Diversity in Private Schools: Progress & Obstacles 2025
Examining the pace of diversity in private schools—where we’ve advanced, where gaps remain, and what next steps look like.
Private School Jobs in 2025: Opportunities & Insights
Discover private school jobs in 2025, including salaries, benefits, and differences from public schools. Learn how to start your private school career.
2025 Roadmap to Starting a Private School — Guide & Strategy
A 2025 step-by-step roadmap for launching your private school: strategy, funding, legal, curriculum, staffing, and sustainability insights.
