#1 Largest Private Schools in Montclair, NJ
The Montclair Kimberley Academy
Independent school · Grades Pre-K–12
1,034 students
Montclair, NJ
A+Overall grade1,034 students6 students per teacher
2026 lists
Largest Private Schools in Montclair, NJ
The private schools in Montclair, NJ with the most students. Top 5 of 5 schools.
#2 Largest Private Schools in Montclair, NJ
Immaculate Conception High School
Independent Catholic school · Grades 9–12
164 students
Montclair, NJ
B+Overall grade164 students11 students per teacher
#3 Largest Private Schools in Montclair, NJ
Montclair Cooperative School
Independent school · Grades Pre-K–8
104 students
Montclair, NJ
AOverall grade104 students7 students per teacher
#4 Largest Private Schools in Montclair, NJ
Sawtelle Learning Center
Special education school · Ungraded
65 students
Montclair, NJ
B+Overall grade65 students13 students per teacher
#5 Largest Private Schools in Montclair, NJ
Fusion Academy - Montclair
Special education school · Grades 5–12
41 students
Montclair, NJ
AOverall grade41 students3 students per teacher
From official public records, updated October 2026.