#1 Largest Private Schools in Maryland
Boys Latin School of Maryland
Early childhood program · Kindergarten only
1,451 students
Baltimore, MD
BOverall gradeAll boys1,451 students14 students per teacher
2026 lists
Largest Private Schools in Maryland
The private schools in Maryland with the most students. Top 50 of 430 schools.
#2 Largest Private Schools in Maryland
McDonogh School
Independent school · Grades Pre-K–12
1,416 students
Owings Mills, MD
A+Overall grade1,416 students7 students per teacher
#3 Largest Private Schools in Maryland
Archbishop Spalding High School
Diocesan school · Grades 9–12
1,295 students
Severn, MD
BOverall grade1,295 students14 students per teacher
#4 Largest Private Schools in Maryland
Calvert Hall College High School
Diocesan school · Grades 9–12
1,249 students
Baltimore, MD
A+Overall gradeAll boys1,249 students11 students per teacher
#5 Largest Private Schools in Maryland
Our Lady of Good Counsel High School
Independent Catholic school · Grades 9–12
1,246 students
Olney, MD
A+Overall grade1,246 students12 students per teacher
#6 Largest Private Schools in Maryland
Rochambeau-The French Intl School
Independent school · Grades Pre-K–12
1,085 students
Bethesda, MD
AOverall grade1,085 students10 students per teacher
#7 Largest Private Schools in Maryland
Bullis School
Independent school · Grades K–12
1,027 students
Potomac, MD
A+Overall grade1,027 students9 students per teacher
#8 Largest Private Schools in Maryland
Loyola Blakefield
Independent Catholic school · Grades 6–12
1,018 students
Towson, MD
A+Overall gradeAll boys1,018 students10 students per teacher
#9 Largest Private Schools in Maryland
Gilman School
Independent school · Grades Pre-K–12
1,017 students
Baltimore, MD
A+Overall gradeAll boys1,017 students6 students per teacher
#10 Largest Private Schools in Maryland
Talmudical Academy of Baltimore
Jewish day school · Grades Pre-K–12
906 students
Baltimore, MD
B-Overall gradeAll boys906 students15 students per teacher
#11 Largest Private Schools in Maryland
Bishop McNamara High School
Independent Catholic school · Grades 9–12
887 students
Forestville, MD
A-Overall grade887 students12 students per teacher
#12 Largest Private Schools in Maryland
The Park School of Baltimore
Independent school · Grades Pre-K–12
839 students
Baltimore, MD
A+Overall grade839 students8 students per teacher
#13 Largest Private Schools in Maryland
Dematha Catholic High School
Independent Catholic school · Grades 9–12
838 students
Hyattsville, MD
A+Overall gradeAll boys838 students11 students per teacher
#14 Largest Private Schools in Maryland
Charles E Smith Jewish Day School
Jewish day school · Grades Pre-K–12
829 students
Rockville, MD
A-Overall grade829 students6 students per teacher
#15 Largest Private Schools in Maryland
Notre Dame Preparatory School
Independent Catholic school · Grades 6–12
828 students
Towson, MD
A+Overall gradeAll girls828 students5 students per teacher
#16 Largest Private Schools in Maryland
Griggs International Academy
Seventh-day Adventist school · Grades K–12
826 students
Silver Spring, MD
BOverall grade826 students
#17 Largest Private Schools in Maryland
Mount Saint Joseph High School
Independent Catholic school · Grades 9–12
798 students
Baltimore, MD
A+Overall gradeAll boys798 students10 students per teacher
#18 Largest Private Schools in Maryland
St. Mary Elementary School
Diocesan school · Grades Pre-K–8
789 students
Annapolis, MD
AOverall grade789 students9 students per teacher
#19 Largest Private Schools in Maryland
Rosedale Baptist School
Baptist school · Grades Pre-K–12
774 students
Baltimore, MD
BOverall grade774 students11 students per teacher
#20 Largest Private Schools in Maryland
Friends School of Baltimore
Quaker (Friends) school · Grades Pre-K–12
769 students
Baltimore, MD
A+Overall grade769 students9 students per teacher
#21 Largest Private Schools in Maryland
Bayaan Academy
Islamic school · Grades 3–12
766 students
Nottingham, MD
BOverall grade766 students11 students per teacher
#22 Largest Private Schools in Maryland
Stone Ridge School of the Sacred Heart
Independent Catholic school · Grades Pre-K–12
738 students
Bethesda, MD
A+Overall gradeAll girls738 students6 students per teacher
#23 Largest Private Schools in Maryland
Torah Institute
Jewish day school · Grades Pre-K–8
736 students
Owings Mills, MD
B-Overall gradeAll boys736 students15 students per teacher
#24 Largest Private Schools in Maryland
John Carroll School
Independent Catholic school · Grades 9–12
734 students
Bel Air, MD
B+Overall grade734 students11 students per teacher
From official public records, updated October 2026.