#1 Largest Private Schools in Danbury, CT
Immaculate High School
Diocesan school · Grades 9–12
375 students
Danbury, CT
A+Overall grade375 students12 students per teacher
2026 lists
Largest Private Schools in Danbury, CT
The private schools in Danbury, CT with the most students. Top 7 of 7 schools.
#2 Largest Private Schools in Danbury, CT
Wooster School
Episcopal school · Grades 5–12
310 students
Danbury, CT
A+Overall grade310 students7 students per teacher
#3 Largest Private Schools in Danbury, CT
St. Peter School
Diocesan school · Grades Pre-K–8
245 students
Danbury, CT
BOverall grade245 students14 students per teacher
#4 Largest Private Schools in Danbury, CT
St. Gregory the Great School
Parish school · Grades Pre-K–8
244 students
Danbury, CT
BOverall grade244 students18 students per teacher
#5 Largest Private Schools in Danbury, CT
Immanuel Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–8
55 students
Danbury, CT
B+Overall grade55 students7 students per teacher
#6 Largest Private Schools in Danbury, CT
Hudson Country Montessori School
Montessori school · Grades Pre-K–8
53 students
Danbury, CT
A+Overall grade53 students1 students per teacher
#7 Largest Private Schools in Danbury, CT
Hudson Country Montessori School
Montessori school · Grades Pre-K–8
52 students
Danbury, CT
A-Overall grade52 students8 students per teacher
From official public records, updated October 2026.