#1 Private Schools with the Smallest Classes in Berkshire County, MA
Buxton School
Independent school · Grades 9–12
2.4 students per teacher
Williamstown, MA
A+Overall grade48 students2 students per teacher
2026 lists
Private Schools with the Smallest Classes in Berkshire County, MA
Private schools in Berkshire County, MA with the fewest students per teacher (not counting preschools and special education schools). Top 12 of 12 schools.
#2 Private Schools with the Smallest Classes in Berkshire County, MA
Miss Hall's School
Independent school · Grades 9–12
3.2 students per teacher
Pittsfield, MA
A+Overall gradeAll girls190 students3 students per teacher
#3 Private Schools with the Smallest Classes in Berkshire County, MA
Bard Academy at Simons Rock
Independent school · Grades 9–10
3.9 students per teacher
Great Barrington, MA
AOverall grade47 students4 students per teacher
#4 Private Schools with the Smallest Classes in Berkshire County, MA
Pine Cobble School
Independent school · Grades Pre-K–8
4.4 students per teacher
Williamstown, MA
A+Overall grade85 students4 students per teacher
#5 Private Schools with the Smallest Classes in Berkshire County, MA
The Montessori School of the Berkshires
Montessori school · Grades Pre-K–8
5.8 students per teacher
Lenox Dale, MA
B+Overall grade69 students6 students per teacher
#6 Private Schools with the Smallest Classes in Berkshire County, MA
Berkshire School
Independent school · Grades 9–12
6.6 students per teacher
Sheffield, MA
A+Overall grade430 students7 students per teacher
#7 Private Schools with the Smallest Classes in Berkshire County, MA
St. Agnes Academy
Parish school · Grades Pre-K–8
6.8 students per teacher
Dalton, MA
A+Overall grade106 students7 students per teacher
#8 Private Schools with the Smallest Classes in Berkshire County, MA
Berkshire Waldorf High School
Independent school · Grades 9–12
6.9 students per teacher
Stockbridge, MA
B+Overall grade40 students7 students per teacher
#9 Private Schools with the Smallest Classes in Berkshire County, MA
Berkshire Country Day School
Independent school · Grades Pre-K–8
7.3 students per teacher
Stockbridge, MA
B+Overall grade72 students7 students per teacher
#10 Private Schools with the Smallest Classes in Berkshire County, MA
Berkshire Waldorf School
Alternative school · Grades Pre-K–8
7.5 students per teacher
Great Barrington, MA
BOverall grade166 students8 students per teacher
#11 Private Schools with the Smallest Classes in Berkshire County, MA
St. Mary's School
Parish school · Grades Pre-K–8
9 students per teacher
Lee, MA
AOverall grade90 students9 students per teacher
#12 Private Schools with the Smallest Classes in Berkshire County, MA
St. Stanislaus Kostka School
Diocesan school · Grades Pre-K–8
11.3 students per teacher
Adams, MA
B+Overall grade96 students11 students per teacher
From official public records, updated October 2026.