Private School Review - Established 2003
Washington International School Top 3 · Highest Avg. ACT Score (DC)
Maret School Top 3 · Largest Endowment (DC)
Gonzaga College High School Top 3 · Most AP Courses (DC)

Average Private High School ACT Scores in District Of Columbia

The averageprivate high school ACT score in District Of Columbia is 0 (2026-27).
The private high school in District Of Columbia with the highest ACT score is Washington International School, with an ACT score of 33.

Quick Facts (26-27)

  • # DC Schools Ranked: 4
  • Top 20 Range (Avg ACT): 28–33
  • DC School Avg.: 30.5
  • National School Avg.: 25

Quick Facts (26-27)

  • # DC Schools Ranked: 4
  • Top 20 Range (Avg ACT): 28–33
  • DC School Avg.: 30.5
  • National School Avg.: 25
Show school map — District Of Columbia (avg ACT range: 28–33, avg 30.5)
Act Score Range: 28 33 Avg. Act Score: 31

Average Private High School ACT Scores in District Of Columbia (2026-27)

Showing 4 schools
Washington International School Photo
#1Washington International School
Gr: NS-12 | 903 students
Avg. class size: 15 students
Sports: 7 | Extracurriculars: 4
Specialized Curriculum
3100 Macomb Street NW
Washington, DC 20008
(202) 243-1800
33avg ACT
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Map of National Cathedral School
#2National Cathedral School
Gr: 4-12 | 599 students
Avg. class size: 12 students
Sports: 16
All-girls (Episcopal)
3612 Woodley Road NW
Washington, DC 20016
(202) 537-6300
31avg ACT
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Maret School Photo
#3Maret 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)
30avg ACT
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Gonzaga College High School Photo
#4Gonzaga 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)
28avg ACT
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Frequently Asked Questions

What are the private high schools with the highest ACT score in District Of Columbia?
The top ranked private schools in District Of Columbia include Washington International School, National Cathedral School and Maret School.

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