#1 Private Schools with the Smallest Classes in Shrewsbury, MA
Shrewsbury Montessori School
Montessori school · Grades Pre-K–6
3.8 students per teacher
Shrewsbury, MA
B+Overall grade90 students4 students per teacher
2026 lists
Private Schools with the Smallest Classes in Shrewsbury, MA
Private schools in Shrewsbury, MA with the fewest students per teacher (not counting preschools and special education schools). Top 6 of 6 schools.
#2 Private Schools with the Smallest Classes in Shrewsbury, MA
Gateways Academy
Independent school · Grades Pre-K–11
4 students per teacher
Shrewsbury, MA
AOverall grade54 students4 students per teacher
#3 Private Schools with the Smallest Classes in Shrewsbury, MA
Shrewsbury Montessori School
Montessori school · Grades Pre-K–7
5.3 students per teacher
Shrewsbury, MA
BOverall grade117 students5 students per teacher
#4 Private Schools with the Smallest Classes in Shrewsbury, MA
Al-Hamra Academy
Islamic school · Grades Pre-K–8
6.9 students per teacher
Shrewsbury, MA
A+Overall grade151 students7 students per teacher
#5 Private Schools with the Smallest Classes in Shrewsbury, MA
St. John's High School
Independent Catholic school · Grades 7–12
12.1 students per teacher
Shrewsbury, MA
B+Overall gradeAll boys916 students12 students per teacher
#6 Private Schools with the Smallest Classes in Shrewsbury, MA
St. Mary School
Diocesan school · Grades Pre-K–8
16.2 students per teacher
Shrewsbury, MA
BOverall grade162 students16 students per teacher
From official public records, updated October 2026.