#1 Most Diverse Private Schools in Washington, DC
Aidan Montessori School
Montessori school · Grades Pre-K–6
Largest group: 25% of students
Washington, DC
AOverall grade75 students8 students per teacher
2026 lists
Most Diverse Private Schools in Washington, DC
Private schools in Washington, DC with the most varied mix of students. Top 39 of 39 schools.
#2 Most Diverse Private Schools in Washington, DC
Sidwell Friends School
Quaker (Friends) school · Grades Pre-K–12
Largest group: 39% of students
Washington, DC
A+Overall grade1,123 students9 students per teacher
#3 Most Diverse Private Schools in Washington, DC
St. Johns College High School
Independent Catholic school · Grades 9–12
Largest group: 43% of students
Washington, DC
B+Overall grade1,794 students20 students per teacher
#4 Most Diverse Private Schools in Washington, DC
Sidwell Friends School
Quaker (Friends) school · Grades Pre-K–12
Largest group: 43% of students
Washington, DC
A+Overall grade1,129 students8 students per teacher
#5 Most Diverse Private Schools in Washington, DC
Templeton Academy
Alternative school · Grades 6–12
Largest group: 43% of students
Washington, DC
A-Overall grade79 students9 students per teacher
#6 Most Diverse Private Schools in Washington, DC
Washington International School
Independent school · Grades Pre-K–12
Largest group: 44% of students
Washington, DC
A+Overall grade846 students7 students per teacher
#7 Most Diverse Private Schools in Washington, DC
National Cathedral School
Episcopal school · Grades 4–12
Largest group: 47% of students
Washington, DC
A+Overall gradeAll girls597 students8 students per teacher
#8 Most Diverse Private Schools in Washington, DC
Edmund Burke School
Independent school · Grades 6–12
Largest group: 56% of students
Washington, DC
A+Overall grade315 students8 students per teacher
#9 Most Diverse Private Schools in Washington, DC
Lowell School
Independent school · Grades Pre-K–8
Largest group: 56% of students
Washington, DC
A+Overall grade270 students4 students per teacher
#10 Most Diverse Private Schools in Washington, DC
Sheridan School
Independent school · Grades K–8
Largest group: 56% of students
Washington, DC
A+Overall grade221 students7 students per teacher
#11 Most Diverse Private Schools in Washington, DC
St. Anselm's Abbey School
Diocesan school · Grades 6–12
Largest group: 57% of students
Washington, DC
A+Overall gradeAll boys224 students6 students per teacher
#12 Most Diverse Private Schools in Washington, DC
Parkmont School
Independent school · Grades 6–12
Largest group: 57% of students
Washington, DC
AOverall grade70 students6 students per teacher
#13 Most Diverse Private Schools in Washington, DC
Christian Family Montessori
Christian (nondenominational) · Montessori · Grades Pre-K–6
Largest group: 58% of students
Washington, DC
B+Overall grade67 students12 students per teacher
#14 Most Diverse Private Schools in Washington, DC
Capitol Hill Day School
Independent school · Grades Pre-K–8
Largest group: 59% of students
Washington, DC
A+Overall grade221 students4 students per teacher
#15 Most Diverse Private Schools in Washington, DC
Our Lady of Victory School
Diocesan school · Grades Pre-K–8
Largest group: 60% of students
Washington, DC
BOverall grade186 students12 students per teacher
#16 Most Diverse Private Schools in Washington, DC
Model Secondary School for the Deaf
Special education school · Grades 9–12
Largest group: 60% of students
Washington, DC
A+Overall grade101 students1 students per teacher
#17 Most Diverse Private Schools in Washington, DC
Georgetown Visitation Preparatory School
Independent Catholic school · Grades 9–12
Largest group: 62% of students
Washington, DC
A+Overall gradeAll girls512 students11 students per teacher
#18 Most Diverse Private Schools in Washington, DC
St. Jerome Institute
Independent Catholic school · Grades 9–12
Largest group: 62% of students
Washington, DC
AOverall grade61 students9 students per teacher
#19 Most Diverse Private Schools in Washington, DC
St. Anthony Catholic School
Parish school · Grades K–8
Largest group: 63% of students
Washington, DC
A+Overall grade195 students6 students per teacher
#20 Most Diverse Private Schools in Washington, DC
River School
Special education school · Grades Pre-K–5
Largest group: 63% of students
Washington, DC
AOverall grade134 students5 students per teacher
#21 Most Diverse Private Schools in Washington, DC
St. Patrick's Episcopal Day School
Episcopal school · Grades Pre-K–8
Largest group: 64% of students
Washington, DC
AOverall grade424 students7 students per teacher
#22 Most Diverse Private Schools in Washington, DC
St. Peter School
Diocesan school · Grades Pre-K–8
Largest group: 71% of students
Washington, DC
A+Overall grade210 students7 students per teacher
#23 Most Diverse Private Schools in Washington, DC
Holy Trinity School
Parish school · Grades Pre-K–8
Largest group: 72% of students
Washington, DC
A-Overall grade315 students9 students per teacher
#24 Most Diverse Private Schools in Washington, DC
Beauvoir the National Cathedral Elementary School
Episcopal school · Grades Pre-K–3
Largest group: 74% of students
Washington, DC
BOverall grade313 students15 students per teacher
From official public records, updated October 2026.