#1 Best Private High Schools in Baltimore County, MD
The Bryn Mawr School
Independent school · Grades Pre-K–12
100% of graduates go to four-year colleges
Baltimore, MD
A+Overall gradeAll girls709 students6 students per teacher
2026 lists
Best Private High Schools in Baltimore County, MD
Private high schools in Baltimore County, MD with the highest overall grades. Top 31 of 31 schools.
#2 Best Private High Schools in Baltimore County, MD
Notre Dame Preparatory School
Independent Catholic school · Grades 6–12
The only all-girls school in Towson
Towson, MD
A+Overall gradeAll girls828 students5 students per teacher
#3 Best Private High Schools in Baltimore County, MD
Gilman School
Independent school · Grades Pre-K–12
The largest independent school in Baltimore
Baltimore, MD
A+Overall gradeAll boys1,017 students6 students per teacher
#4 Best Private High Schools in Baltimore County, MD
The Catholic High School of Baltimore
Independent Catholic school · Grades 9–12
100% of graduates go to four-year colleges
Baltimore, MD
A+Overall gradeAll girls264 students10 students per teacher
#5 Best Private High Schools in Baltimore County, MD
St. Timothy's School
Episcopal school · Grades 9–12
100% of graduates go to four-year colleges
Stevenson, MD
A+Overall gradeAll girls170 students6 students per teacher
#6 Best Private High Schools in Baltimore County, MD
Garrison Forest School
Independent school · Grades Pre-K–12
The only all-girls school in Owings Mills
Owings Mills, MD
A+Overall gradeAll girls475 students6 students per teacher
#7 Best Private High Schools in Baltimore County, MD
McDonogh School
Independent school · Grades Pre-K–12
The largest of 69 independent schools in Maryland
Owings Mills, MD
A+Overall grade1,416 students7 students per teacher
#8 Best Private High Schools in Baltimore County, MD
Mount Saint Joseph High School
Independent Catholic school · Grades 9–12
95% of graduates go to four-year colleges
Baltimore, MD
A+Overall gradeAll boys798 students10 students per teacher
#9 Best Private High Schools in Baltimore County, MD
Friends School of Baltimore
Quaker (Friends) school · Grades Pre-K–12
One of the 3 largest Christian schools in Maryland
Baltimore, MD
A+Overall grade769 students9 students per teacher
#10 Best Private High Schools in Baltimore County, MD
Calvert Hall College High School
Diocesan school · Grades 9–12
One of the 3 largest Catholic schools in Maryland
Baltimore, MD
A+Overall gradeAll boys1,249 students11 students per teacher
#11 Best Private High Schools in Baltimore County, MD
The Park School of Baltimore
Independent school · Grades Pre-K–12
99% of graduates go to four-year colleges
Baltimore, MD
A+Overall grade839 students8 students per teacher
#12 Best Private High Schools in Baltimore County, MD
Jemicy School
Independent school · Grades 1–12
Smaller classes than 83% of independent schools in Maryland
Ownings Mills, MD
A+Overall grade450 students5 students per teacher
#13 Best Private High Schools in Baltimore County, MD
Loyola Blakefield
Independent Catholic school · Grades 6–12
The only all-boys school in Towson
Towson, MD
A+Overall gradeAll boys1,018 students10 students per teacher
#14 Best Private High Schools in Baltimore County, MD
Mount De Sales Academy
Independent Catholic school · Grades 9–12
90% of graduates go to four-year colleges
Baltimore, MD
AOverall gradeAll girls450 students9 students per teacher
#15 Best Private High Schools in Baltimore County, MD
Mercy High School
Independent Catholic school · Grades 9–12
95% of graduates go to four-year colleges
Baltimore, MD
A-Overall gradeAll girls441 students12 students per teacher
#16 Best Private High Schools in Baltimore County, MD
Beth Tfiloh Dahan Community School
Jewish day school · Grades Pre-K–12
99% of graduates go to four-year colleges
Baltimore, MD
A-Overall grade689 students8 students per teacher
#17 Best Private High Schools in Baltimore County, MD
Israel Henry Beren High School
Jewish day school · Grades 9–12
100% of graduates go to four-year colleges
Baltimore, MD
B+Overall gradeAll boys239 students10 students per teacher
#18 Best Private High Schools in Baltimore County, MD
Mesivta Kesser Torah of Baltimore
Jewish day school · Grades 9–12
100% of graduates go to four-year colleges
Pikesville, MD
BOverall gradeAll boys96 students10 students per teacher
#19 Best Private High Schools in Baltimore County, MD
Bayaan Academy
Religious school · Grades 3–12
One of the 3 largest private schools in Maryland
Baltimore, MD
BOverall grade657 students11 students per teacher
#20 Best Private High Schools in Baltimore County, MD
Perry Hall Christian School
Baptist school · Grades Pre-K–12
Growing: enrollment up 101% since 2011–12
Perry Hall, MD
BOverall grade422 students11 students per teacher
#21 Best Private High Schools in Baltimore County, MD
Our Lady of Mt. Carmel School
Diocesan school · Grades Pre-K–12
Serving families in Essex since at least 2011
Essex, MD
BOverall grade498 students13 students per teacher
#22 Best Private High Schools in Baltimore County, MD
Bnos Yisroel
Jewish day school · Grades Pre-K–12
Growing: enrollment up 40% since 2011–12
Baltimore, MD
BOverall gradeAll girls518 students7 students per teacher
#23 Best Private High Schools in Baltimore County, MD
Rosedale Baptist School
Baptist school · Grades Pre-K–12
One of the 3 largest Christian schools in Maryland
Baltimore, MD
BOverall grade774 students11 students per teacher
#24 Best Private High Schools in Baltimore County, MD
Bayaan Academy
Islamic school · Grades 3–12
The largest of 14 private schools in Maryland
Nottingham, MD
BOverall grade766 students11 students per teacher
Grades compare each school's official facts, such as class size, how long it has served families and where graduates go, with similar schools. They're a starting point: visit, ask questions and trust what you see.