#1 Best Private High Schools in Montgomery County, MD
Barrie School
Montessori school · Grades Pre-K–12
The largest of 33 Montessori schools in Maryland
Silver Spring, MD
2026 lists
Private high schools in Montgomery County, MD with the highest overall grades. Top 26 of 26 schools.
#1 Best Private High Schools in Montgomery County, MD
Montessori school · Grades Pre-K–12
The largest of 33 Montessori schools in Maryland
Silver Spring, MD
#2 Best Private High Schools in Montgomery County, MD
Independent Catholic school · Grades 9–12
The only all-girls school in Kensington
Kensington, MD
#3 Best Private High Schools in Montgomery County, MD
Parish school · Grades 9–12
Smaller classes than 86% of Catholic schools in Maryland
North Bethesda, MD
#4 Best Private High Schools in Montgomery County, MD
Independent Catholic school · Grades Pre-K–12
The only all-girls school in Bethesda
Bethesda, MD
#5 Best Private High Schools in Montgomery County, MD
Episcopal school · Grades Pre-K–12
The only Christian school in Potomac
Potomac, MD
#6 Best Private High Schools in Montgomery County, MD
Independent Catholic school · Grades K–12
95% of graduates go to four-year colleges
Silver Spring, MD
#7 Best Private High Schools in Montgomery County, MD
Independent school · Grades Pre-K–12
Smaller classes than 93% of independent schools in Maryland
Bethesda, MD
#8 Best Private High Schools in Montgomery County, MD
Quaker (Friends) school · Grades Pre-K–12
89% of graduates go to four-year colleges
Sandy Spring, MD
#9 Best Private High Schools in Montgomery County, MD
Independent school · Grades K–12
90% of graduates go to four-year colleges
Potomac, MD
#10 Best Private High Schools in Montgomery County, MD
Independent Catholic school · Grades 9–12
One of the 3 largest Catholic schools in Maryland
Olney, MD
#11 Best Private High Schools in Montgomery County, MD
Religious school · Grades 6–12
The only all-girls school in Potomac
Potomac, MD
#12 Best Private High Schools in Montgomery County, MD
Christian school (nondenominational) · Grades K–12
The largest Christian school in Olney
Olney, MD
#13 Best Private High Schools in Montgomery County, MD
Independent school · Grades K–12
One of the 3 largest independent schools in Maryland
Potomac, MD
#14 Best Private High Schools in Montgomery County, MD
Independent school · Grades Pre-K–12
One of the 3 largest independent schools in Maryland
Bethesda, MD
#15 Best Private High Schools in Montgomery County, MD
Jewish day school · Grades 7–12
The only all-girls school in Silver Spring
Silver Spring, MD
#16 Best Private High Schools in Montgomery County, MD
Jewish day school · Grades Pre-K–12
100% of graduates go to four-year colleges
Rockville, MD
#17 Best Private High Schools in Montgomery County, MD
Seventh-day Adventist school · Grades Pre-K–12
One of the most diverse private schools in Maryland
Spencerville, MD
#18 Best Private High Schools in Montgomery County, MD
Jewish day school · Grades Pre-K–12
One of the 3 largest Jewish day schools in Maryland
Rockville, MD
#19 Best Private High Schools in Montgomery County, MD
Christian school (nondenominational) · Grades Pre-K–12
The only Christian school in Gaithersburg
Gaithersburg, MD
#20 Best Private High Schools in Montgomery County, MD
Independent school · Grades 9–12
Growing: enrollment up 31% since 2011–12
Silver Spring, MD
#21 Best Private High Schools in Montgomery County, MD
Seventh-day Adventist school · Grades 9–12
85% of graduates go to four-year colleges
Takoma Park, MD
#22 Best Private High Schools in Montgomery County, MD
Seventh-day Adventist school · Grades K–12
The largest of 151 Christian schools in Maryland
Silver Spring, MD
#23 Best Private High Schools in Montgomery County, MD
Independent school · Grades Pre-K–12
Serving families in Potomac since at least 2011
Potomac, MD
#24 Best Private High Schools in Montgomery County, MD
Diocesan school · Grades 9–12
93% of graduates go to four-year colleges
Takoma Park, MD
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.