#1 Largest Private Schools in Potomac, MD
Bullis School
Independent school · Grades K–12
1,027 students
Potomac, MD
A+Overall grade1,027 students9 students per teacher
2026 lists
Largest Private Schools in Potomac, MD
The private schools in Potomac, MD with the most students. Top 12 of 12 schools.
#2 Largest Private Schools in Potomac, MD
St. Andrew's Episcopal School
Episcopal school · Grades Pre-K–12
673 students
Potomac, MD
A+Overall grade673 students7 students per teacher
#3 Largest Private Schools in Potomac, MD
German International School Washington DC
Independent school · Grades Pre-K–12
472 students
Potomac, MD
BOverall grade472 students10 students per teacher
#4 Largest Private Schools in Potomac, MD
MC Lean School of Maryland
Independent school · Grades K–12
469 students
Potomac, MD
A+Overall grade469 students6 students per teacher
#5 Largest Private Schools in Potomac, MD
Connelly School of the Holy Child
Religious school · Grades 6–12
350 students
Potomac, MD
A+Overall gradeAll girls350 students7 students per teacher
#6 Largest Private Schools in Potomac, MD
Our Lady of Mercy School
Diocesan school · Grades Pre-K–8
182 students
Potomac, MD
A+Overall grade182 students8 students per teacher
#7 Largest Private Schools in Potomac, MD
Muslim Community School/Alim Academy
Islamic school · Grades Pre-K–11
129 students
Potomac, MD
AOverall grade129 students7 students per teacher
#8 Largest Private Schools in Potomac, MD
Feynman School
Independent school · Grades Pre-K–8
44 students
Potomac, MD
AOverall grade44 students5 students per teacher
#9 Largest Private Schools in Potomac, MD
The Harbor School
Independent school · Grades Pre-K–3
36 students
Potomac, MD
AOverall grade36 students4 students per teacher
#10 Largest Private Schools in Potomac, MD
Geneva Day School
Early childhood program · Grades Pre-K–K
22 students
Potomac, MD
A-Overall grade22 students7 students per teacher
#11 Largest Private Schools in Potomac, MD
The Manor Montessori School
Montessori school · Grades Pre-K–3
21 students
Potomac, MD
AOverall grade21 students2 students per teacher
#12 Largest Private Schools in Potomac, MD
Georgetown Hill Potomac Village
Early childhood program · Grades Pre-K–K
20 students
Potomac, MD
B+Overall grade20 students7 students per teacher
From official public records, updated October 2026.