#1 Largest Private Schools in the U.S.
Uta of Kiryas Joel, Kahan
Jewish day school · Grades Pre-K–11
9,214 students
Monroe, NY
B-Overall grade9,214 students
2026 lists
Largest Private Schools in the U.S.
The private schools in the U.S. with the most students. Top 50 of 18,547 schools.
#2 Largest Private Schools in the U.S.
The Keystone School
Independent school · Grades K–12
8,873 students
Reston, VA
B-Overall grade8,873 students
#3 Largest Private Schools in the U.S.
Isea International
Independent school · Grades K–12
7,818 students
Newport Beach, CA
B-Overall grade7,818 students
#4 Largest Private Schools in the U.S.
Career Online High School
Independent school · Grades 9–12
6,353 students
Pompano Beach, FL
B-Overall grade6,353 students
#5 Largest Private Schools in the U.S.
Sheri Torah V'yoel Moshe
Jewish day school · Grades Pre-K–11
5,075 students
Monroe, NY
B-Overall gradeAll boys5,075 students25 students per teacher
#6 Largest Private Schools in the U.S.
American School
Alternative school · Grades 6–12
5,049 students
Lansing, IL
B-Overall grade5,049 students
#7 Largest Private Schools in the U.S.
Ahavath Israel Viznitz
Jewish day school · Grades Pre-K–12
4,730 students
Bedford Hills, NY
B-Overall grade4,730 students13 students per teacher
#8 Largest Private Schools in the U.S.
Lighthouse Christian Academy
Christian school (nondenominational) · Grades K–12
4,316 students
Lewisville, TX
B-Overall grade4,316 students
#9 Largest Private Schools in the U.S.
Lighthouse Christian Academy
Christian school (nondenominational) · Grades K–12
4,039 students
Hendersonville, TN
B-Overall grade4,039 students
#10 Largest Private Schools in the U.S.
Enlightium Academy
Christian school (nondenominational) · Grades K–12
3,722 students
Spokane, WA
B-Overall grade3,722 students
#11 Largest Private Schools in the U.S.
Punahou School
Independent school · Grades K–12
3,700 students
Honolulu, HI
B+Overall grade3,700 students11 students per teacher
#12 Largest Private Schools in the U.S.
Aliyah Academy
Christian school (nondenominational) · Grades Pre-K–12
3,088 students
Morristown, TN
B-Overall grade3,088 students
#13 Largest Private Schools in the U.S.
Greenways Academy
Alternative school · Grades 1–12
3,015 students
Saint Louis, MO
BOverall grade3,015 students
#14 Largest Private Schools in the U.S.
American Heritage- Broward Campus
Independent school · Grades Pre-K–12
2,977 students
Plantation, FL
A+Overall grade2,977 students11 students per teacher
#15 Largest Private Schools in the U.S.
Kellenberg Memorial High School
Independent Catholic school · Grades 6–12
2,692 students
Uniondale, NY
BOverall grade2,692 students22 students per teacher
#16 Largest Private Schools in the U.S.
Woodward Academy
Independent school · Grades Pre-K–12
2,627 students
College Park, GA
A+Overall grade2,627 students10 students per teacher
#17 Largest Private Schools in the U.S.
Seton Catholic Schools
Independent Catholic school · Grades Pre-K–8
2,624 students
Saint Francis, WI
BOverall grade2,624 students15 students per teacher
#18 Largest Private Schools in the U.S.
Talmud Torah Meorhachaim Viznitz
Jewish day school · Grades Pre-K–12
2,602 students
Monsey, NY
B-Overall gradeAll girls2,602 students13 students per teacher
#19 Largest Private Schools in the U.S.
Individual Education Plan Academy
Religious school · Grades K–12
2,570 students
Kissimmee, FL
BOverall grade2,570 students10 students per teacher
#20 Largest Private Schools in the U.S.
Beth Rachel School for Girls
Jewish day school · Grades 1–8
2,509 students
Brooklyn, NY
B-Overall gradeAll girls2,509 students18 students per teacher
#21 Largest Private Schools in the U.S.
St. Francis Prep
Independent Catholic school · Grades 9–12
2,480 students
Fresh Meadows, NY
B+Overall grade2,480 students21 students per teacher
#22 Largest Private Schools in the U.S.
St. Anthony's High School
Parish school · Grades 9–12
2,435 students
Huntington Station, NY
B+Overall grade2,435 students19 students per teacher
#23 Largest Private Schools in the U.S.
Fairmont Private School
Independent school · Grades Pre-K–12
2,391 students
Anaheim, CA
B+Overall grade2,391 students11 students per teacher
#24 Largest Private Schools in the U.S.
Excel High School
Independent school · Grades 6–12
2,300 students
Minnetonka, MN
B-Overall grade2,300 students
From official public records, updated October 2026.