#1 Best Private Middle Schools in New Hampshire
Cardigan Mountain School
Independent school · Grades 6–9
Smaller classes than 86% of independent schools nationwide
Canaan, NH
A+Overall gradeAll boys231 students4 students per teacher
2026 lists
Best Private Middle Schools in New Hampshire
Private schools in New Hampshire with middle-school grades and the highest overall grades. Top 32 of 32 schools.
#2 Best Private Middle Schools in New Hampshire
Crossroads Academy
Independent school · Grades K–8
Smaller classes than 82% of independent schools in New Hampshire
Lyme, NH
A+Overall grade114 students7 students per teacher
#3 Best Private Middle Schools in New Hampshire
Holy Family Academy
Independent Catholic school · Grades 7–12
90% of graduates go to four-year colleges
Manchester, NH
A+Overall grade108 students10 students per teacher
#4 Best Private Middle Schools in New Hampshire
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
#5 Best Private Middle Schools in New Hampshire
St. Joseph Regional Jr. High School
Independent Catholic school · Grades 7–8
Smaller classes than 69% of Catholic schools nationwide
Manchester, NH
AOverall grade106 students11 students per teacher
#6 Best Private Middle Schools in New Hampshire
2nd Nature Academy
Independent school · Grades Pre-K–11
Growing: enrollment up 111% since 2011–12
Nashua, NH
AOverall grade80 students7 students per teacher
#7 Best Private Middle Schools in New Hampshire
Trinity Christian School
Lutheran (Missouri Synod) school · Grades Pre-K–8
The only Christian school in Keene
Keene, NH
AOverall grade96 students10 students per teacher
#8 Best Private Middle Schools in New Hampshire
St. Joseph Regional School
Diocesan school · Grades Pre-K–12
Growing: enrollment up 192% since 2011–12
Keene, NH
A-Overall grade286 students9 students per teacher
#9 Best Private Middle Schools in New Hampshire
St. Mary Academy
Diocesan school · Grades Pre-K–8
Smaller classes than 64% of Catholic schools in New Hampshire
Dover, NH
A-Overall grade183 students9 students per teacher
#10 Best Private Middle Schools in New Hampshire
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
#11 Best Private Middle Schools in New Hampshire
Mountain Shadows School
Alternative school · Grades K–8
Serving families in Dublin since at least 2011
Dublin, NH
B+Overall grade60 students8 students per teacher
#12 Best Private Middle Schools in New Hampshire
The Well School
Alternative school · Grades K–8
Small classes: about 8 students per teacher
Peterborough, NH
B+Overall grade102 students8 students per teacher
#13 Best Private Middle Schools in New Hampshire
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
#14 Best Private Middle Schools in New Hampshire
Laconia Christian Academy
Christian school (nondenominational) · Grades Pre-K–12
Growing: enrollment up 83% since 2011–12
Laconia, NH
B+Overall grade152 students7 students per teacher
#15 Best Private Middle Schools in New Hampshire
High Mowing School
Independent school · Grades Pre-K–12
97% of graduates go to four-year colleges
Wilton, NH
B+Overall grade333 students11 students per teacher
#16 Best Private Middle Schools in New Hampshire
Sant Bani School
Independent school · Grades Pre-K–8
Serving families in Sanbornton since at least 2011
Sanbornton, NH
B+Overall grade116 students8 students per teacher
#17 Best Private Middle Schools in New Hampshire
Crossroads Christian School
Baptist school · Grades Pre-K–12
Small classes: about 7 students per teacher
Pelham, NH
BOverall grade152 students7 students per teacher
#18 Best Private Middle Schools in New Hampshire
Tri-City Christian Academy
Calvinist school · Grades Pre-K–12
Serving families in Somersworth since at least 2011
Somersworth, NH
BOverall grade167 students10 students per teacher
#19 Best Private Middle Schools in New Hampshire
Hollis Montessori School
Montessori school · Grades Pre-K–8
Growing: enrollment up 49% since 2013–14
Hollis, NH
BOverall grade88 students10 students per teacher
#20 Best Private Middle Schools in New Hampshire
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
#21 Best Private Middle Schools in New Hampshire
Heritage Christian School
Christian school (nondenominational) · Grades K–8
Growing: enrollment up 42% since 2011–12
Rindge, NH
BOverall grade111 students13 students per teacher
#22 Best Private Middle Schools in New Hampshire
Mount Prospect Academy
Alternative school · Grades 5–12
Smaller classes than 69% of independent schools nationwide
Plymouth, NH
BOverall gradeAll boys117 students6 students per teacher
#23 Best Private Middle Schools in New Hampshire
South Merrimack Christian Academy
Baptist school · Grades Pre-K–12
Small classes: about 8 students per teacher
Merrimack, NH
BOverall grade238 students8 students per teacher
#24 Best Private Middle Schools in New Hampshire
Heronfield Academy
Independent school · Grades 6–8
An independent school in Hampton Falls
Hampton Falls, NH
BOverall grade94 students10 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.