#1 Private Schools with the Smallest Classes in Greenwich, CT
Whitby School
Montessori school · Grades Pre-K–8
3.1 students per teacher
Greenwich, CT
A+Overall grade253 students3 students per teacher
2026 lists
Private Schools with the Smallest Classes in Greenwich, CT
Private schools in Greenwich, CT with the fewest students per teacher (not counting preschools and special education schools). Top 5 of 5 schools.
#2 Private Schools with the Smallest Classes in Greenwich, CT
Greenwich Academy
Independent school · Grades Pre-K–12
7.2 students per teacher
Greenwich, CT
A+Overall gradeAll girls802 students7 students per teacher
#3 Private Schools with the Smallest Classes in Greenwich, CT
The Greenwich Country Day School
Independent school · Grades Pre-K–12
7.9 students per teacher
Greenwich, CT
BOverall grade1,315 students8 students per teacher
#4 Private Schools with the Smallest Classes in Greenwich, CT
Greenwich Catholic School
Diocesan school · Grades Pre-K–8
9.5 students per teacher
Greenwich, CT
A+Overall grade294 students10 students per teacher
#5 Private Schools with the Smallest Classes in Greenwich, CT
Sacred Heart Greenwich
Diocesan school · Grades Pre-K–12
21.9 students per teacher
Greenwich, CT
B-Overall gradeAll girls588 students22 students per teacher
From official public records, updated October 2026.