#1 Best Private High Schools in New Hampshire
Dublin School
Independent school · Grades 9–12
100% of graduates go to four-year colleges
Dublin, NH
A+Overall grade169 students6 students per teacher
2026 lists
Best Private High Schools in New Hampshire
Private high schools in New Hampshire with the highest overall grades. Top 19 of 19 schools.
#2 Best Private High Schools in New Hampshire
White Mountain School
Episcopal school · Grades 9–12
Smaller classes than 90% of Christian schools nationwide
Bethlehem, NH
A+Overall grade78 students3 students per teacher
#3 Best Private High Schools in New Hampshire
Trinity High School
Diocesan school · Grades 9–12
The smallest classes of any Catholic school in Manchester
Manchester, NH
A+Overall grade327 students9 students per teacher
#4 Best Private High Schools in New Hampshire
Phillips Exeter Academy
Independent school · Grades 9–12
The largest of 29 independent schools in New Hampshire
Exeter, NH
A+Overall grade1,055 students6 students per teacher
#5 Best Private High Schools in New Hampshire
Proctor Academy
Independent school · Grades 9–12
One of the 3 largest independent schools in New Hampshire
Andover, NH
A+Overall grade381 students5 students per teacher
#6 Best Private High Schools in New Hampshire
St. Pauls School
Episcopal school · Grades 9–12
The largest of 29 Christian schools in New Hampshire
Concord, NH
A+Overall grade548 students9 students per teacher
#7 Best Private High 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
#8 Best Private High Schools in New Hampshire
New Hampton School
Independent school · Grades 9–12
One of the most diverse private schools in New Hampshire
New Hampton, NH
A+Overall grade315 students5 students per teacher
#9 Best Private High Schools in New Hampshire
Bishop Brady High School
Diocesan school · Grades 9–12
94% of graduates go to four-year colleges
Concord, NH
AOverall grade259 students10 students per teacher
#10 Best Private High Schools in New Hampshire
St. Thomas Aquinas High School
Diocesan school · Grades 9–12
One of the 3 largest Catholic schools in New Hampshire
Dover, NH
A-Overall grade354 students12 students per teacher
#11 Best Private High Schools in New Hampshire
Tilton School
Independent school · Grades 9–12
97% of graduates go to four-year colleges
Tilton, NH
A-Overall grade175 students7 students per teacher
#12 Best Private High 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
#13 Best Private High Schools in New Hampshire
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
#14 Best Private High 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
#15 Best Private High 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
#16 Best Private High Schools in New Hampshire
Busche Academy
Independent school · Grades 9–12
One of the most diverse private schools in New Hampshire
Chester, NH
BOverall grade120 students15 students per teacher
#17 Best Private High Schools in New Hampshire
Dublin Christian Academy
Christian school (nondenominational) · Grades Pre-K–12
The only Christian school in Dublin
Dublin, NH
BOverall grade164 students10 students per teacher
#18 Best Private High Schools in New Hampshire
Concord Christian Academy
Christian school (nondenominational) · Grades Pre-K–12
One of the 3 largest Christian schools in New Hampshire
Concord, NH
B-Overall grade324 students12 students per teacher
#19 Best Private High Schools in New Hampshire
Trinity Christian School
Baptist school · Grades K–12
One of the 3 largest Christian schools in New Hampshire
Concord, NH
B-Overall grade244 students11 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.