#1 Private Schools with the Smallest Classes in District of Columbia
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 District of Columbia
Private schools in District of Columbia with the fewest students per teacher (not counting preschools and special education schools). Top 38 of 38 schools.
#2 Private Schools with the Smallest Classes in District of Columbia
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 District of Columbia
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 District of Columbia
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 District of Columbia
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 District of Columbia
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 District of Columbia
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 District of Columbia
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 District of Columbia
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 District of Columbia
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 District of Columbia
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 District of Columbia
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 District of Columbia
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 District of Columbia
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 District of Columbia
Sidwell Friends School
Quaker (Friends) school · Grades Pre-K–12
7.6 students per teacher
Washingon, DC
A+Overall grade1,122 students8 students per teacher
#16 Private Schools with the Smallest Classes in District of Columbia
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
#17 Private Schools with the Smallest Classes in District of Columbia
Edmund Burke School
Independent school · Grades 6–12
7.8 students per teacher
Washington, DC
A+Overall grade315 students8 students per teacher
#18 Private Schools with the Smallest Classes in District of Columbia
Washington Jesuit Academy
Independent Catholic school · Grades 4–8
8.1 students per teacher
Washington, DC
AOverall gradeAll boys138 students8 students per teacher
#19 Private Schools with the Smallest Classes in District of Columbia
San Miguel School
Independent Catholic school · Grades 6–8
8.1 students per teacher
Washington, DC
BOverall gradeAll boys89 students8 students per teacher
#20 Private Schools with the Smallest Classes in District of Columbia
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
#21 Private Schools with the Smallest Classes in District of Columbia
National Cathedral School
Episcopal school · Grades 4–12
8.4 students per teacher
Washington, DC
A+Overall gradeAll girls597 students8 students per teacher
#22 Private Schools with the Smallest Classes in District of Columbia
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
#23 Private Schools with the Smallest Classes in District of Columbia
Washington School for Girls
Independent Catholic school · Grades 3–8
8.8 students per teacher
Washington, DC
BOverall gradeAll girls105 students9 students per teacher
#24 Private Schools with the Smallest Classes in District of Columbia
Templeton Academy
Alternative school · Grades 6–12
8.8 students per teacher
Washington, DC
A-Overall grade79 students9 students per teacher
From official public records, updated October 2026.