#1 Largest Private Schools in Westchester County, NY
Ahavath Israel Viznitz
Jewish day school · Grades Pre-K–12
4,730 students
Bedford Hills, NY
B-Overall grade4,730 students13 students per teacher
2026 lists
Largest Private Schools in Westchester County, NY
The private schools in Westchester County, NY with the most students. Top 50 of 64 schools.
#2 Largest Private Schools in Westchester County, NY
Iona Preparatory School
Independent Catholic school · Grades Pre-K–12
996 students
New Rochelle, NY
BOverall gradeAll boys996 students17 students per teacher
#3 Largest Private Schools in Westchester County, NY
The Windward School
Special education school · Grades 1–9
960 students
White Plains, NY
B+Overall grade960 students4 students per teacher
#4 Largest Private Schools in Westchester County, NY
Archbishop Stepinac High School
Independent Catholic school · Grades 9–12
769 students
White Plains, NY
A+Overall gradeAll boys769 students13 students per teacher
#5 Largest Private Schools in Westchester County, NY
The Ursuline School
Independent Catholic school · Grades 6–12
767 students
New Rochelle, NY
A+Overall gradeAll girls767 students9 students per teacher
#6 Largest Private Schools in Westchester County, NY
The Masters School
Independent school · Grades 5–12
692 students
Dobbs Ferry, NY
AOverall grade692 students7 students per teacher
#7 Largest Private Schools in Westchester County, NY
French American School of New York
Independent school · Grades Pre-K–12
685 students
Mamaroneck, NY
B+Overall grade685 students8 students per teacher
#8 Largest Private Schools in Westchester County, NY
The Leffell School
Jewish day school · Grades 6–12
491 students
Hartsdale, NY
B+Overall grade491 students7 students per teacher
#9 Largest Private Schools in Westchester County, NY
Maria Regina High School
Independent Catholic school · Grades 9–12
464 students
Hartsdale, NY
A+Overall gradeAll girls464 students12 students per teacher
#10 Largest Private Schools in Westchester County, NY
School of the Holy Child
Independent Catholic school · Grades 5–12
388 students
Rye, NY
A+Overall gradeAll girls388 students9 students per teacher
#11 Largest Private Schools in Westchester County, NY
German International School New York
Independent school · Grades Pre-K–12
384 students
White Plains, NY
B-Overall grade384 students11 students per teacher
#12 Largest Private Schools in Westchester County, NY
Annunciation School
Diocesan school · Grades Pre-K–8
364 students
Tuckahoe, NY
BOverall grade364 students13 students per teacher
#13 Largest Private Schools in Westchester County, NY
Leffell School
Jewish day school · Grades K–5
362 students
White Plains, NY
BOverall grade362 students7 students per teacher
#14 Largest Private Schools in Westchester County, NY
Salesian High School
Independent Catholic school · Grades 9–12
346 students
New Rochelle, NY
A-Overall gradeAll boys346 students16 students per teacher
#15 Largest Private Schools in Westchester County, NY
Sts. John & Paul School
Parish school · Grades Pre-K–8
340 students
Larchmont, NY
BOverall grade340 students15 students per teacher
#16 Largest Private Schools in Westchester County, NY
St. Augustine School
Diocesan school · Grades Pre-K–8
338 students
Ossining, NY
BOverall grade338 students16 students per teacher
#17 Largest Private Schools in Westchester County, NY
St. Barnabas Elementary School
Parish school · Grades K–8
327 students
Bronx, NY
B+Overall grade327 students16 students per teacher
#18 Largest Private Schools in Westchester County, NY
Resurrection Grammar School
Parish school · Grades Pre-K–8
326 students
Rye, NY
BOverall grade326 students13 students per teacher
#19 Largest Private Schools in Westchester County, NY
Rippowam Cisqua School
Independent school · Grades Pre-K–9
323 students
Bedford, NY
A-Overall grade323 students4 students per teacher
#20 Largest Private Schools in Westchester County, NY
Andalusia School
Islamic school · Grades Pre-K–12
313 students
Yonkers, NY
A+Overall grade313 students15 students per teacher
#21 Largest Private Schools in Westchester County, NY
Westchester School for Special Children
Special education school · Pre-K only
259 students
Yonkers, NY
BOverall grade259 students9 students per teacher
#22 Largest Private Schools in Westchester County, NY
Sacred Heart High School
Diocesan school · Grades 9–12
253 students
Yonkers, NY
A+Overall grade253 students9 students per teacher
#23 Largest Private Schools in Westchester County, NY
Ef Academy International Boarding School
Independent school · Grades 9–12
253 students
Thornwood, NY
A+Overall grade253 students6 students per teacher
#24 Largest Private Schools in Westchester County, NY
The Hallen School
Special education school · Grades 2–12
252 students
New Rochelle, NY
B-Overall grade252 students8 students per teacher
From official public records, updated October 2026.