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Georgetown Day School Top 3 · Largest Endowment (DC)
Maret School Top 3 · Largest Endowment (DC)

Average Private High School endowment in District Of Columbia

The average private high school endowment in District Of Columbia is $37.7M (2026).
The private high school in District Of Columbia with the highest endowment is Sidwell Friends School, with a endowment of $92M.

Quick Facts (2026)

  • # DC Schools Ranked: 9
  • Top 20 Range (Endowment): $1–$92
  • DC School Avg.: $38
  • National School Avg.: $42

Quick Facts (2026)

  • # DC Schools Ranked: 9
  • Top 20 Range (Endowment): $1–$92
  • DC School Avg.: $38
  • National School Avg.: $42

District Of Columbia Average Endowment (Trends)

Year District Of Columbia (DC) avg
2025 $38.9
2024 $41.4
2023 $29.5
2022 $29.5
2021 $23.3
2020 $18
2019 $6
2018 $5
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Show school map — District Of Columbia (endowment range: $1–$92, avg $38)
Endowment Range: $1M $92M Avg. Endowment: $37.7M

Average Private High School endowment in District Of Columbia (2026)

Showing 9 schools
Map of Sidwell Friends School
#1Sidwell Friends School
Gr: PK-12 | 1,142 students
Avg. class size: 12 students
Sports: 16 | Extracurriculars: 33
Friends
3825 Wisconsin Ave NW
Washington, DC 20016
(202) 537-8100
$92endowment
View Profile
Georgetown Day School Photo
#2(T2–T5)Georgetown Day School
Gr: PK-12 | 1,050 students
Avg. class size: 8 students
Sports: 19 | Extracurriculars: 26
4200 Davenport Street, NW
Washington, DC 20016
(202) 274-3200
(2)
$50endowment
View Profile
Maret School Photo
#2(T2–T5)Maret School
Gr: K-12 | 660 students
Avg. class size: 16 students
Sports: 13 | Extracurriculars: 26
3000 Cathedral Avenue NW
Washington, DC 20008
(202) 939-8814
(1)
$50endowment
View Profile
Map of St. Johns College High School
#2(T2–T5)St. Johns College High School
Gr: 9-12 | 1,279 students
Avg. class size: 21 students
Sports: 24
Catholic
2607 Military Road NW, Chevy Chase
Washington, DC 20015
(202) 363-2316
$50endowment
View Profile
Map of Ujamaa School
#2(T2–T5)Ujamaa School
Gr: K-9 | 63 students
Avg. class size: 15 students
1554 8th St Nw
Washington, DC 20001
(202) 232-2997
(2)
$50endowment
View Profile
Gonzaga College High School Photo
#6Gonzaga College High School
Gr: 9-12 | 962 students
Avg. class size: 20 students
Sports: 19
All-boys (Catholic)
19 I Street NW
Washington, DC 20001
(202) 336-7100
(5)
$30endowment
View Profile
Washington International School Photo
#7Washington International School
Gr: NS-12 | 890 students
Avg. class size: 14 students
Sports: 7 | Extracurriculars: 4
Specialized Curriculum
3100 Macomb Street NW
Washington, DC 20008
(202) 243-1800
$10endowment
View Profile
St. Albans School Photo
#8St. Albans School
Gr: 4-12 | 576 students
Avg. class size: 13 students
Sports: 10
All-boys (Episcopal)
Mount St Alban
Washington, DC 20016
(202) 537-6440
$6endowment
View Profile
St. Anselm's Abbey School Photo
#9St. Anselm's Abbey School
Gr: 6-12 | 247 students
Sports: 13
All-boys | Alternative School (Catholic)
4501 South Dakota Ave Ne
Washington, DC 20017
(202) 269-2350
$1endowment
View Profile

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 2026.
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, Georgetown Day School and Maret School.

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