#1 Private Schools with the Smallest Classes in Washington, DC
Capitol Hill Day School
Independent school · Grades Pre-K–8
4 students per teacher
Washington, DC
A+Overall grade221 students4 students per teacher
2026 lists
Private Schools with the Smallest Classes in Washington, DC
Private schools in Washington, DC with the fewest students per teacher (not counting preschools and special education schools). Top 37 of 37 schools.
#2 Private Schools with the Smallest Classes in Washington, DC
Lowell School
Independent school · Grades Pre-K–8
4.2 students per teacher
Washington, DC
A+Overall grade270 students4 students per teacher
#3 Private Schools with the Smallest Classes in Washington, DC
The School for Ethics and Global Leadership
Alternative school · Grades 11–12
5.2 students per teacher
Washington, DC
AOverall grade143 students5 students per teacher
#4 Private Schools with the Smallest Classes in Washington, DC
Parkmont School
Independent school · Grades 6–12
5.6 students per teacher
Washington, DC
AOverall grade70 students6 students per teacher
#5 Private Schools with the Smallest Classes in Washington, DC
St. Anselm's Abbey School
Diocesan school · Grades 6–12
6.2 students per teacher
Washington, DC
A+Overall gradeAll boys224 students6 students per teacher
#6 Private Schools with the Smallest Classes in Washington, DC
St. Anthony Catholic School
Parish school · Grades K–8
6.2 students per teacher
Washington, DC
A+Overall grade195 students6 students per teacher
#7 Private Schools with the Smallest Classes in Washington, DC
Annunciation Catholic School
Parish school · Grades Pre-K–8
6.3 students per teacher
Washington, DC
A+Overall grade130 students6 students per teacher
#8 Private Schools with the Smallest Classes in Washington, DC
The Field School
Independent school · Grades 6–12
6.6 students per teacher
Washington, DC
A+Overall grade351 students7 students per teacher
#9 Private Schools with the Smallest Classes in Washington, DC
St. Peter School
Diocesan school · Grades Pre-K–8
6.6 students per teacher
Washington, DC
A+Overall grade210 students7 students per teacher
#10 Private Schools with the Smallest Classes in Washington, DC
Sheridan School
Independent school · Grades K–8
6.9 students per teacher
Washington, DC
A+Overall grade221 students7 students per teacher
#11 Private Schools with the Smallest Classes in Washington, DC
St. Thomas More Catholic
Diocesan school · Grades Pre-K–8
7 students per teacher
Washington, DC
B+Overall grade153 students7 students per teacher
#12 Private Schools with the Smallest Classes in Washington, DC
Washington International School
Independent school · Grades Pre-K–12
7.3 students per teacher
Washington, DC
A+Overall grade846 students7 students per teacher
#13 Private Schools with the Smallest Classes in Washington, DC
St. Patrick's Episcopal Day School
Episcopal school · Grades Pre-K–8
7.3 students per teacher
Washington, DC
AOverall grade424 students7 students per teacher
#14 Private Schools with the Smallest Classes in Washington, DC
Aidan Montessori School
Montessori school · Grades Pre-K–6
7.5 students per teacher
Washington, DC
AOverall grade75 students8 students per teacher
#15 Private Schools with the Smallest Classes in Washington, DC
Sidwell Friends School
Quaker (Friends) school · Grades Pre-K–12
7.7 students per teacher
Washington, DC
A+Overall grade1,129 students8 students per teacher
#16 Private Schools with the Smallest Classes in Washington, DC
Edmund Burke School
Independent school · Grades 6–12
7.8 students per teacher
Washington, DC
A+Overall grade315 students8 students per teacher
#17 Private Schools with the Smallest Classes in Washington, DC
Washington Jesuit Academy
Independent Catholic school · Grades 4–8
8.1 students per teacher
Washington, DC
AOverall gradeAll boys138 students8 students per teacher
#18 Private Schools with the Smallest Classes in Washington, DC
San Miguel School
Independent Catholic school · Grades 6–8
8.1 students per teacher
Washington, DC
BOverall gradeAll boys89 students8 students per teacher
#19 Private Schools with the Smallest Classes in Washington, DC
Milton Gottesman Jewish Day School of the Nation's
Jewish day school · Grades Pre-K–8
8.3 students per teacher
Washington, DC
BOverall grade449 students8 students per teacher
#20 Private Schools with the Smallest Classes in Washington, DC
National Cathedral School
Episcopal school · Grades 4–12
8.4 students per teacher
Washington, DC
A+Overall gradeAll girls597 students8 students per teacher
#21 Private Schools with the Smallest Classes in Washington, DC
Sidwell Friends School
Quaker (Friends) school · Grades Pre-K–12
8.8 students per teacher
Washington, DC
A+Overall grade1,123 students9 students per teacher
#22 Private Schools with the Smallest Classes in Washington, DC
Washington School for Girls
Independent Catholic school · Grades 3–8
8.8 students per teacher
Washington, DC
BOverall gradeAll girls105 students9 students per teacher
#23 Private Schools with the Smallest Classes in Washington, DC
Templeton Academy
Alternative school · Grades 6–12
8.8 students per teacher
Washington, DC
A-Overall grade79 students9 students per teacher
#24 Private Schools with the Smallest Classes in Washington, DC
Holy Trinity School
Parish school · Grades Pre-K–8
9.4 students per teacher
Washington, DC
A-Overall grade315 students9 students per teacher
From official public records, updated October 2026.