#1 Largest Private Schools in New Haven, CT
The Foote School
Independent school · Grades K–9
426 students
New Haven, CT
A+Overall grade426 students4 students per teacher
2026 lists
Largest Private Schools in New Haven, CT
The private schools in New Haven, CT with the most students. Top 7 of 7 schools.
#2 Largest Private Schools in New Haven, CT
All Saints Catholic Academy
Independent Catholic school · Grades K–8
150 students
New Haven, CT
A-Overall grade150 students13 students per teacher
#3 Largest Private Schools in New Haven, CT
Cold Spring School
Montessori school · Grades Pre-K–6
136 students
New Haven, CT
BOverall grade136 students6 students per teacher
#4 Largest Private Schools in New Haven, CT
St. Thomas's Day School
Episcopal school · Grades K–6
119 students
New Haven, CT
A+Overall grade119 students6 students per teacher
#5 Largest Private Schools in New Haven, CT
St. Martin De Porres Academy
Independent Catholic school · Grades 5–8
72 students
New Haven, CT
A+Overall grade72 students9 students per teacher
#6 Largest Private Schools in New Haven, CT
The Cheder New Haven
Jewish day school · Grades K–8
60 students
New Haven, CT
B+Overall grade60 students4 students per teacher
#7 Largest Private Schools in New Haven, CT
All Nations Christian Academy
Religious school · Grades K–4
23 students
New Haven, CT
23 students7 students per teacher
From official public records, updated October 2026.