#1 Largest Private Schools in Princeton, NJ
Princeton Day School
Independent school · Grades Pre-K–12
952 students
Princeton, NJ
A+Overall grade952 students7 students per teacher
2026 lists
Largest Private Schools in Princeton, NJ
The private schools in Princeton, NJ with the most students. Top 12 of 12 schools.
#2 Largest Private Schools in Princeton, NJ
Wilberforce School
Christian school (nondenominational) · Grades Pre-K–12
344 students
Princeton, NJ
B+Overall grade344 students18 students per teacher
#3 Largest Private Schools in Princeton, NJ
Stuart Country Day School of the Sacred Heart
Independent Catholic school · Grades Pre-K–12
283 students
Princeton, NJ
A+Overall gradeAll girls283 students4 students per teacher
#4 Largest Private Schools in Princeton, NJ
St. Paul School of Princeton
Parish school · Grades Pre-K–8
245 students
Princeton, NJ
A+Overall grade245 students10 students per teacher
#5 Largest Private Schools in Princeton, NJ
Chapin School
Independent school · Grades Pre-K–8
171 students
Princeton, NJ
A+Overall grade171 students6 students per teacher
#6 Largest Private Schools in Princeton, NJ
Princeton International SCHL of Math and Science
Independent school · Grades 9–12
120 students
Princeton, NJ
B+Overall grade120 students6 students per teacher
#7 Largest Private Schools in Princeton, NJ
French American School of Princeton
Independent school · Grades Pre-K–8
116 students
Princeton, NJ
A-Overall grade116 students8 students per teacher
#8 Largest Private Schools in Princeton, NJ
Princeton Montessori School
Montessori school · Grades Pre-K–8
93 students
Princeton, NJ
B+Overall grade93 students12 students per teacher
#9 Largest Private Schools in Princeton, NJ
Waldorf School of Princeton
Independent school · Grades Pre-K–8
93 students
Princeton, NJ
AOverall grade93 students7 students per teacher
#10 Largest Private Schools in Princeton, NJ
Princeton Friends School
Quaker (Friends) school · Grades Pre-K–8
82 students
Princeton, NJ
A+Overall grade82 students4 students per teacher
#11 Largest Private Schools in Princeton, NJ
Fusion Academy Princeton
Alternative school · Grades 7–12
38 students
Princeton, NJ
AOverall grade38 students1 students per teacher
#12 Largest Private Schools in Princeton, NJ
Princeton Child Development Institute
Special education school · Grades Pre-K–12
27 students
Princeton, NJ
AOverall grade27 students5 students per teacher
From official public records, updated October 2026.