Holderness School Photo

Best New Hampshire Private Schools Belonging to National Association of Independent Schools (NAIS) (2025-26)

For the 2025-26 school year, there are 16 private schools belonging to National Association of Independent Schools (NAIS) serving 5,081 students in New Hampshire. You can also find more schools membership associations in New Hampshire.
The top ranked private 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 $48,889, which is higher than the New Hampshire private school average tuition cost of $20,160.
25% of private schools belonging to National Association of Independent Schools (NAIS) in New Hampshire are religiously affiliated (most commonly Episcopal and Other).

Top Ranked Private Schools Belonging to National Association of Independent Schools (NAIS) in New Hampshire (2025-26)

School
Location
Quick Facts
The Derryfield School
The Derryfield School Photo - The Derryfield School is located in Manchester, NH. The 70+ acre campus boasts state-of-the-art facilities including a Science & Innovation Center, Athletic & Wellness Center, 400-seat Theater, and lighted turf field.
2108 River Road
Manchester, NH 03104
(603) 669-4524
Gr: 6-12 | 389 students Avg. class size: 15 students Sports: 16 | Extracurrculars: 50 Tuition & acceptance rate listed
World Academy
World Academy Photo
(9)
138 Spit Brook Road
Nashua, NH 03062
(603) 888-1982
Gr: NS-8 | 508 students Sports: 6 | Extracurrculars: 12 Tuition & acceptance rate listed
Brewster Academy
Brewster Academy Photo - Brewster Academy boasts strong athletic teams with 14 league titles, 17 New England tournament bids, and two national titles in the past five years.
80 Academy Drive
Wolfeboro, NH 03894
(603) 569-7200
Gr: 9-12 | 340 students Avg. class size: 12 students Sports: 19 | Extracurrculars: 17 Tuition & acceptance rate listed
Dublin School
Dublin School Photo
(2)
18 Lehmann Way
Dublin, NH 03444
(603) 563-7075
Gr: 9-12 | 162 students Avg. class size: 10 students Sports: 15 | Extracurrculars: 40 Tuition & acceptance rate listed
Hampstead Academy
Hampstead Academy Photo - Connect. Inquire. Empower. Prepared for the Future. Hampstead Academy strives to be the exemplar for experiential learning and a place to cultivate connections, ignite ideas, and empower prepared students for the future.
(5)
320 East Road
Hampstead, NH 03841
(603) 329-4406
Gr: PK-8 | 63 students Avg. class size: 6 students Extracurrculars: 7 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.
Special Program Emphasis
222 Isaac Frye Hwy
Wilton, NH 03086
(603) 654-2391
Gr: PK-12 | 361 students Avg. class size: 22 students Sports: 5 | Extracurrculars: 19 Tuition listed
Holderness School
Holderness School Photo
(Episcopal)
(2)
33 Chapel Lane
Plymouth, NH 03264
(603) 536-1257
Gr: 9-12 | 380 students Avg. class size: 12 students Sports: 21 | Extracurrculars: 20 Tuition & acceptance rate listed
Kimball Union Academy
Kimball Union Academy Photo
64 Main Street
Meriden, NH 03770
(603) 469-2100
Gr: 9-12 | 338 students Avg. class size: 12 students Sports: 22 | Extracurrculars: 38 Tuition & acceptance rate listed
My School
Special Program Emphasis
(18)
118 Locust Street
Dover, NH 03820
(603) 742-0321
Gr: PK-2 | 80 students Avg. class size: 12 students Extracurrculars: 2 Tuition & acceptance rate listed
New Hampton School
New Hampton School Photo
70 Main Street
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.
Alternative School
20 Main St
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.
(Episcopal)
325 Pleasant Street
Concord, NH 03301
(603) 229-4700
Gr: 9-12 | 540 students Avg. class size: 10 students Sports: 21 | Extracurrculars: 31 Tuition & acceptance rate listed
Sant Bani School
Sant Bani School Photo
19 Ashram Road
Sanbornton, NH 03269
(603) 934-4240
Gr: PK-8 | 150 students Avg. class size: 15 students Sports: 8 | Extracurrculars: 10 Tuition & acceptance rate listed
Tilton School
Tilton School Photo - Maloney Hall is one of Tilton's newest dormitories and provides suite-style living for mainly 12th-grade and postgraduate students.
(1)
30 School Street
Tilton, NH 03276
(603) 286-1733
Gr: 9-12 | 200 students Avg. class size: 12 students Sports: 14 | Extracurrculars: 22 Tuition listed
The Beech Hill School
The Beech Hill School Photo - The students at The Beech Hill School are fortunate to enjoy a beautiful campus in all seasons.
(6)
20 Beech Hill Rd.
Contoocook, NH 03229
(603) 715-5129
Gr: 5-8 | 44 students Avg. class size: 10 students Sports: 1 Tuition listed
Heronfield Academy
Heronfield Academy Photo
Special Program Emphasis (Episcopal)
(2)
356 Exeter Rd
Hampton Falls, NH 03844
(603) 772-9093
Gr: 6-8 | 90 students Avg. class size: 15 students Sports: 3 | Extracurrculars: 5 Tuition listed

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