#1 Private Schools with the Smallest Classes in Westchester County, NY
Fusion Academy Westchester
Alternative school · Grades 6–12
2.2 students per teacher
White Plains, NY
AOverall grade44 students2 students per teacher
2026 lists
Private Schools with the Smallest Classes in Westchester County, NY
Private schools in Westchester County, NY with the fewest students per teacher (not counting preschools and special education schools). Top 49 of 49 schools.
#2 Private Schools with the Smallest Classes in Westchester County, NY
Thornton-Donovan School
Independent school · Grades K–12
4.1 students per teacher
New Rochelle, NY
AOverall grade72 students4 students per teacher
#3 Private Schools with the Smallest Classes in Westchester County, NY
Westchester Day School
Jewish day school · Grades Pre-K–8
4.3 students per teacher
Mamaroneck, NY
A-Overall grade237 students4 students per teacher
#4 Private Schools with the Smallest Classes in Westchester County, NY
Rippowam Cisqua School
Independent school · Grades Pre-K–9
4.4 students per teacher
Bedford, NY
A-Overall grade323 students4 students per teacher
#5 Private Schools with the Smallest Classes in Westchester County, NY
Hudson Lab School
Independent school · Grades K–8
4.6 students per teacher
Hastings-on-Hudson, NY
AOverall grade60 students5 students per teacher
#6 Private Schools with the Smallest Classes in Westchester County, NY
Westchester Area School
Seventh-day Adventist school · Grades Pre-K–8
5 students per teacher
New Rochelle, NY
AOverall grade44 students5 students per teacher
#7 Private Schools with the Smallest Classes in Westchester County, NY
Ef Academy International Boarding School
Independent school · Grades 9–12
5.6 students per teacher
Thornwood, NY
A+Overall grade253 students6 students per teacher
#8 Private Schools with the Smallest Classes in Westchester County, NY
The Chapel School
Lutheran (Missouri Synod) school · Grades Pre-K–8
6 students per teacher
Bronxville, NY
A+Overall grade153 students6 students per teacher
#9 Private Schools with the Smallest Classes in Westchester County, NY
Westchester Torah Academy
Jewish day school · Grades Pre-K–8
6.3 students per teacher
New Rochelle, NY
B+Overall grade169 students6 students per teacher
#10 Private Schools with the Smallest Classes in Westchester County, NY
The Leffell School
Jewish day school · Grades 6–12
6.9 students per teacher
Hartsdale, NY
B+Overall grade491 students7 students per teacher
#11 Private Schools with the Smallest Classes in Westchester County, NY
Leffell School
Jewish day school · Grades K–5
7 students per teacher
White Plains, NY
BOverall grade362 students7 students per teacher
#12 Private Schools with the Smallest Classes in Westchester County, NY
The Masters School
Independent school · Grades 5–12
7.2 students per teacher
Dobbs Ferry, NY
AOverall grade692 students7 students per teacher
#13 Private Schools with the Smallest Classes in Westchester County, NY
Transfiguration School
Diocesan school · Grades Pre-K–8
7.4 students per teacher
Tarrytown, NY
A+Overall grade88 students7 students per teacher
#14 Private Schools with the Smallest Classes in Westchester County, NY
French American School of New York
Independent school · Grades Pre-K–12
8 students per teacher
Mamaroneck, NY
B+Overall grade685 students8 students per teacher
#15 Private Schools with the Smallest Classes in Westchester County, NY
John Cardinal Oconnor School
Diocesan school · Grades K–8
8.1 students per teacher
Irvington, NY
A+Overall grade55 students8 students per teacher
#16 Private Schools with the Smallest Classes in Westchester County, NY
Sacred Heart High School
Diocesan school · Grades 9–12
8.5 students per teacher
Yonkers, NY
A+Overall grade253 students9 students per teacher
#17 Private Schools with the Smallest Classes in Westchester County, NY
St. Mark's Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
8.6 students per teacher
Yonkers, NY
AOverall grade56 students9 students per teacher
#18 Private Schools with the Smallest Classes in Westchester County, NY
The Ursuline School
Independent Catholic school · Grades 6–12
8.8 students per teacher
New Rochelle, NY
A+Overall gradeAll girls767 students9 students per teacher
#19 Private Schools with the Smallest Classes in Westchester County, NY
School of the Holy Child
Independent Catholic school · Grades 5–12
8.8 students per teacher
Rye, NY
A+Overall gradeAll girls388 students9 students per teacher
#20 Private Schools with the Smallest Classes in Westchester County, NY
Ohr Hameir Seminary - Tifereth Israel High School
Jewish day school · Grades 9–12
8.8 students per teacher
Courtland Manor, NY
B+Overall gradeAll boys128 students9 students per teacher
#21 Private Schools with the Smallest Classes in Westchester County, NY
St. Columbanus School
Diocesan school · Grades Pre-K–5
9.7 students per teacher
Cortlandt Manor, NY
A+Overall grade64 students10 students per teacher
#22 Private Schools with the Smallest Classes in Westchester County, NY
Iona Preparatory Lower School
Independent Catholic school · Grades Pre-K–8
10.8 students per teacher
New Rochelle, NY
A+Overall gradeAll boys215 students11 students per teacher
#23 Private Schools with the Smallest Classes in Westchester County, NY
Talmud Torah Bais Yechiel-Nitra
Jewish day school · Grades K–9
10.9 students per teacher
Mount Kisco, NY
BOverall gradeAll boys120 students11 students per teacher
#24 Private Schools with the Smallest Classes in Westchester County, NY
German International School New York
Independent school · Grades Pre-K–12
11.1 students per teacher
White Plains, NY
B-Overall grade384 students11 students per teacher
From official public records, updated October 2026.