#1 Best All-Boys Schools in the U.S.
Lasalle Academy
Independent Catholic school · Grades 9–12
Smaller classes than 92% of Catholic schools in New York
New York, NY
A+Overall gradeAll boys189 students6 students per teacher
2026 lists
Best All-Boys Schools in the U.S.
The highest-graded schools of this kind in the U.S.. Top 50 of 397 schools.
#2 Best All-Boys Schools in the U.S.
Georgetown Preparatory School
Parish school · Grades 9–12
Smaller classes than 86% of Catholic schools in Maryland
North Bethesda, MD
A+Overall gradeAll boys500 students8 students per teacher
#3 Best All-Boys Schools in the U.S.
Cathedral Preparatory School and Seminary
Diocesan school · Grades 9–12
The only all-boys school in Elmhurst
Elmhurst, NY
A+Overall gradeAll boys160 students11 students per teacher
#4 Best All-Boys Schools in the U.S.
St. Catherine's Academy
Independent Catholic school · Grades K–8
Smaller classes than 98% of Catholic schools in California
Anaheim, CA
A+Overall gradeAll boys140 students7 students per teacher
#5 Best All-Boys Schools in the U.S.
Cistercian Preparatory School
Independent Catholic school · Grades 5–12
Smaller classes than 92% of Catholic schools in Texas
Irving, TX
A+Overall gradeAll boys352 students6 students per teacher
#6 Best All-Boys Schools in the U.S.
Delbarton School
Independent Catholic school · Grades 7–12
The only all-boys school in Morristown
Morristown, NJ
A+Overall gradeAll boys646 students8 students per teacher
#7 Best All-Boys Schools in the U.S.
Cardigan Mountain School
Independent school · Grades 6–9
Smaller classes than 86% of independent schools nationwide
Canaan, NH
A+Overall gradeAll boys231 students4 students per teacher
#8 Best All-Boys Schools in the U.S.
Benedictine High School
Independent Catholic school · Grades 9–12
The only all-boys school in Cleveland
Cleveland, OH
A+Overall gradeAll boys265 students8 students per teacher
#9 Best All-Boys Schools in the U.S.
Don Bosco Preparatory High School
Independent Catholic school · Grades 9–12
Smaller classes than 91% of Catholic schools in New Jersey
Ramsey, NJ
A+Overall gradeAll boys786 students7 students per teacher
#10 Best All-Boys Schools in the U.S.
Strake Jesuit College Prep School
Independent Catholic school · Grades 9–12
The largest of 207 Catholic schools in Texas
Houston, TX
A+Overall gradeAll boys1,390 students10 students per teacher
#11 Best All-Boys Schools in the U.S.
Subiaco Academy
Independent Catholic school · Grades 7–12
Smaller classes than 94% of Catholic schools nationwide
Subiaco, AR
A+Overall gradeAll boys144 students6 students per teacher
#12 Best All-Boys Schools in the U.S.
Blue Ridge School
Episcopal school · Grades 9–12
Smaller classes than 77% of Christian schools in Virginia
St George, VA
A+Overall gradeAll boys171 students5 students per teacher
#13 Best All-Boys Schools in the U.S.
St. Augustine High School
Independent Catholic school · Grades 9–12
Smaller classes than 72% of Catholic schools in California
San Diego, CA
A+Overall gradeAll boys729 students11 students per teacher
#14 Best All-Boys Schools in the U.S.
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
#15 Best All-Boys Schools in the U.S.
Regis High School
Independent Catholic school · Grades 9–12
100% of graduates go to four-year colleges
New York, NY
A+Overall gradeAll boys529 students9 students per teacher
#16 Best All-Boys Schools in the U.S.
Cathedral School for Boys
Episcopal school · Grades K–8
Smaller classes than 88% of Christian schools in California
San Francisco, CA
A+Overall gradeAll boys256 students6 students per teacher
#17 Best All-Boys Schools in the U.S.
Town School for Boys
Independent school · Grades K–8
Smaller classes than 75% of independent schools in California
San Francisco, CA
A+Overall gradeAll boys416 students6 students per teacher
#18 Best All-Boys Schools in the U.S.
St. Lawrence Seminary High School
Independent Catholic school · Grades 9–12
The only Catholic school in Mount Calvary
Mount Calvary, WI
A+Overall gradeAll boys136 students7 students per teacher
#19 Best All-Boys Schools in the U.S.
Avalon School
Independent Catholic school · Grades K–12
95% of graduates go to four-year colleges
Silver Spring, MD
A+Overall gradeAll boys202 students8 students per teacher
#20 Best All-Boys Schools in the U.S.
Mount Carmel High School
Independent Catholic school · Grades 9–12
94% of graduates go to four-year colleges
Chicago, IL
A+Overall gradeAll boys588 students11 students per teacher
#21 Best All-Boys Schools in the U.S.
Jesuit High School
Independent Catholic school · Grades 9–12
The only all-boys school in Carmichael
Carmichael, CA
A+Overall gradeAll boys917 students11 students per teacher
#22 Best All-Boys Schools in the U.S.
The Allen-Stevenson School
Independent school · Grades K–8
Smaller classes than 89% of independent schools in New York
New York, NY
A+Overall gradeAll boys385 students3 students per teacher
#23 Best All-Boys Schools in the U.S.
Devon Preparatory School
Independent Catholic school · Grades 6–12
Smaller classes than 88% of Catholic schools in Pennsylvania
Devon, PA
A+Overall gradeAll boys333 students6 students per teacher
#24 Best All-Boys Schools in the U.S.
Bishop Hendricken High School
Diocesan school · Grades 8–12
The only all-boys school in Warwick
Warwick, RI
A+Overall gradeAll boys610 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.