#1 Largest Private Schools in Barnstable County, MA
St. John Paul II School
Diocesan school · Grades 5–12
429 students
Hyannis, MA
A+Overall grade429 students7 students per teacher
2026 lists
Largest Private Schools in Barnstable County, MA
The private schools in Barnstable County, MA with the most students. Top 11 of 11 schools.
#2 Largest Private Schools in Barnstable County, MA
Cape Cod Academy
Independent school · Grades K–12
308 students
Osterville, MA
BOverall grade308 students8 students per teacher
#3 Largest Private Schools in Barnstable County, MA
St. Pius X School
Parish school · Grades Pre-K–8
226 students
South Yarmouth, MA
BOverall grade226 students15 students per teacher
#4 Largest Private Schools in Barnstable County, MA
Riverview School
Special education school · Grades 6–12
197 students
East Sandwich, MA
B-Overall grade197 students4 students per teacher
#5 Largest Private Schools in Barnstable County, MA
Falmouth Academy
Independent school · Grades 7–12
187 students
Falmouth, MA
A+Overall grade187 students6 students per teacher
#6 Largest Private Schools in Barnstable County, MA
Trinity Christian Academy
Christian school (nondenominational) · Grades Pre-K–12
185 students
Barnstable, MA
A+Overall grade185 students8 students per teacher
#7 Largest Private Schools in Barnstable County, MA
Waldorf School of Cape Cod
Independent school · Grades Pre-K–8
77 students
Sandwich, MA
BOverall grade77 students8 students per teacher
#8 Largest Private Schools in Barnstable County, MA
Latham School
Special education school · Grades 6–12
45 students
Brewster, MA
B+Overall grade45 students5 students per teacher
#9 Largest Private Schools in Barnstable County, MA
Bridgeview Montessori School
Montessori school · Grades Pre-K–6
44 students
Sagamore, MA
A-Overall grade44 students4 students per teacher
#10 Largest Private Schools in Barnstable County, MA
Bayberry Christian School
Seventh-day Adventist school · Grades Pre-K–8
31 students
Osterville, MA
B+Overall grade31 students10 students per teacher
#11 Largest Private Schools in Barnstable County, MA
The Hundred Acre SCHL Heritage Museums and Gardens
Independent school · Grades Pre-K–2
28 students
Sandwich, MA
B+Overall grade28 students9 students per teacher
From official public records, updated October 2026.