#1 Largest Private Schools in Grafton County, NH
Cardigan Mountain School
Independent school · Grades 6–9
231 students
Canaan, NH
A+Overall gradeAll boys231 students4 students per teacher
2026 lists
Largest Private Schools in Grafton County, NH
The private schools in Grafton County, NH with the most students. Top 9 of 9 schools.
#2 Largest Private Schools in Grafton County, NH
New England School of the Arts
Independent school · Grades 9–12
139 students
Lebanon, NH
B-Overall grade139 students32 students per teacher
#3 Largest Private Schools in Grafton County, NH
Mount Prospect Academy
Alternative school · Grades 5–12
117 students
Plymouth, NH
BOverall gradeAll boys117 students6 students per teacher
#4 Largest Private Schools in Grafton County, NH
Crossroads Academy
Independent school · Grades K–8
114 students
Lyme, NH
A+Overall grade114 students7 students per teacher
#5 Largest Private Schools in Grafton County, NH
White Mountain School
Episcopal school · Grades 9–12
78 students
Bethlehem, NH
A+Overall grade78 students3 students per teacher
#6 Largest Private Schools in Grafton County, NH
Oliverian School
Episcopal school · Grades 9–12
35 students
Pike, NH
AOverall grade35 students4 students per teacher
#7 Largest Private Schools in Grafton County, NH
Immersion Montessori School
Montessori school · Pre-K only
27 students
Lebanon, NH
B+Overall grade27 students7 students per teacher
#8 Largest Private Schools in Grafton County, NH
Waterville Valley Academy
Independent school · Grades 9–12
22 students
Waterville Valley, NH
AOverall grade22 students3 students per teacher
#9 Largest Private Schools in Grafton County, NH
Woodland Community School
Alternative school · Ungraded
21 students
Bethlehem, NH
AOverall grade21 students7 students per teacher
From official public records, updated October 2026.