#1 Best Private Schools in Sullivan County, NH
Mount Royal Academy
Independent Catholic school · Grades Pre-K–12
Smaller classes than 86% of Catholic schools nationwide
Sunapee, NH
A+Overall grade179 students6 students per teacher
2026 lists
Best Private Schools in Sullivan County, NH
Private schools in Sullivan County, NH with the highest overall grades. Top 5 of 5 schools.
#2 Best Private Schools in Sullivan County, NH
Claremont Christian Academy
Baptist school · Grades Pre-K–12
Growing: enrollment up 154% since 2011–12
Claremont, NH
B+Overall grade132 students6 students per teacher
#3 Best Private Schools in Sullivan County, NH
Newport Montessori School
Montessori school · Grades Pre-K–8
Growing: enrollment up 150% since 2011–12
Newport, NH
B+Overall grade85 students8 students per teacher
#4 Best Private Schools in Sullivan County, NH
Claremont Christian Academy
Baptist school · Grades K–12
Smaller classes than 73% of Christian schools in New Hampshire
Claremont, NH
BOverall grade130 students6 students per teacher
#5 Best Private Schools in Sullivan County, NH
Kimball Union Academy
Independent school · Grades 9–12
One of the 3 largest independent schools in New Hampshire
Meriden, NH
BOverall grade338 students8 students per teacher
Grades compare each school's official facts, such as class size, how long it has served families and where graduates go, with similar schools. They're a starting point: visit, ask questions and trust what you see.