For the 2025-26 school year, there are 10 private high schools belonging to National Association of Independent Schools (NAIS) serving 4,146 students in New Hampshire. You can also find more schools membership associations in New Hampshire.
The top ranked private high schools belonging to National Association of Independent Schools (NAIS) in New Hampshire include St. Paul's School, Kimball Union Academy, and Holderness School.
The average tuition cost is $67,597, which is higher than the New Hampshire private high school average tuition cost of $30,526.
20% of private high schools belonging to National Association of Independent Schools (NAIS) in New Hampshire are religiously affiliated (most commonly Episcopal).
Top Ranked Private High Schools Belonging to National Association of Independent Schools (NAIS) in New Hampshire (2025-26)
School
Location
Quick Facts
2108 River Road
Manchester, NH 03104
(603) 669-4524
Manchester, NH 03104
(603) 669-4524
Gr: 6-12 | 389 students Avg. class size: 15 students Sports: 16 | Extracurrculars: 50 Tuition & acceptance rate listed
80 Academy Drive
Wolfeboro, NH 03894
(603) 569-7200
Wolfeboro, NH 03894
(603) 569-7200
Gr: 9-12 | 340 students Avg. class size: 12 students Sports: 19 | Extracurrculars: 17 Tuition & acceptance rate listed
18 Lehmann Way
Dublin, NH 03444
(603) 563-7075
Dublin, NH 03444
(603) 563-7075
Gr: 9-12 | 162 students Avg. class size: 10 students Sports: 15 | Extracurrculars: 40 Tuition & acceptance rate listed
High Mowing School![High Mowing School Photo - The only International Waldorf boarding & day school in North America, High Mowing welcomes students from across the globe. Explore our 300-acre classroom. Become a citizen of the world, a steward of the land with a global perspective. Join us, get connected.]( "High Mowing School Photo - The only International Waldorf boarding & day school in North America, High Mowing welcomes students from across the globe. Explore our 300-acre classroom. Become a citizen of the world, a steward of the land with a global perspective. Join us, get connected.")
Special Program Emphasis
222 Isaac Frye Hwy
Wilton, NH 03086
(603) 654-2391
Wilton, NH 03086
(603) 654-2391
Gr: PK-12 | 361 students Avg. class size: 22 students Sports: 5 | Extracurrculars: 19 Tuition listed
33 Chapel Lane
Plymouth, NH 03264
(603) 536-1257
Plymouth, NH 03264
(603) 536-1257
Gr: 9-12 | 380 students Avg. class size: 12 students Sports: 21 | Extracurrculars: 20 Tuition & acceptance rate listed
64 Main Street
Meriden, NH 03770
(603) 469-2100
Meriden, NH 03770
(603) 469-2100
Gr: 9-12 | 338 students Avg. class size: 12 students Sports: 22 | Extracurrculars: 38 Tuition & acceptance rate listed
70 Main Street
New Hampton, NH 03256
(603) 677-3401
New Hampton, NH 03256
(603) 677-3401
Gr: 9-12 | 330 students Avg. class size: 11 students Sports: 17 | Extracurrculars: 18 Tuition & acceptance rate listed
Phillips Exeter Academy![Phillips Exeter Academy Photo - Exeter students live and learn all over the world by participating in 40 off-campus programs from Iceland (shown) to South Africa to Washington, DC.]( "Phillips Exeter Academy Photo - Exeter students live and learn all over the world by participating in 40 off-campus programs from Iceland (shown) to South Africa to Washington, DC.")
Alternative School
20 Main St
Exeter, NH 03833
(603) 777-3437
Exeter, NH 03833
(603) 777-3437
Gr: 9-12 | 1,106 student Avg. class size: 12 students Sports: 22 Tuition & acceptance rate listed
St. Paul's School![St. Paul's School Photo - Students walking to class after Chapel.]( "St. Paul's School Photo - Students walking to class after Chapel.")
(Episcopal)
325 Pleasant Street
Concord, NH 03301
(603) 229-4700
Concord, NH 03301
(603) 229-4700
Gr: 9-12 | 540 students Avg. class size: 10 students Sports: 21 | Extracurrculars: 31 Tuition & acceptance rate listed
30 School Street
Tilton, NH 03276
(603) 286-1733
Tilton, NH 03276
(603) 286-1733
Gr: 9-12 | 200 students Avg. class size: 12 students Sports: 14 | Extracurrculars: 22 Tuition listed
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