The average private high school in New Hampshire was founded around 1947 (2025).
The oldest private high school in New Hampshire is Phillips Exeter Academy, founded in 1781.
Year Founded Range: 1781
1976
Avg. Year Founded: 1917
Oldest Private High Schools in New Hampshire (2025)
School
Founding Date
Grades
Location
Rank: #11.
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
Founding Date: 1781
Grades: 9-12
20 Main St
Exeter, NH 03833
(603) 777-3437
Exeter, NH 03833
(603) 777-3437
Rank: #2 - 32. - 3.
Founding Date: 1813
Grades: 9-12
64 Main Street
Meriden, NH 03770
(603) 469-2100
Meriden, NH 03770
(603) 469-2100
Rank: #2 - 32. - 3.
Founding Date: 1813
Grades: 9-12
7 Campus Center Drive
Meriden, NH 03770
Plainfield, NH 03781
(603) 469-2000
Plainfield, NH 03781
(603) 469-2000
Rank: #44.
Founding Date: 1814
Grades: 9-12
5 Pinkerton St
Derry, NH 03038
(603) 437-5200
Derry, NH 03038
(603) 437-5200
Rank: #55.
Founding Date: 1820
Grades: 9-12
80 Academy Drive
Wolfeboro, NH 03894
(603) 569-7200
Wolfeboro, NH 03894
(603) 569-7200
Rank: #66.
Founding Date: 1821
Grades: 9-12
70 Main Street
New Hampton, NH 03256
(603) 677-3401
New Hampton, NH 03256
(603) 677-3401
Rank: #77.
Founding Date: 1845
Grades: 9-12
30 School Street
Tilton, NH 03276
(603) 286-1733
Tilton, NH 03276
(603) 286-1733
Rank: #88.
Founding Date: 1848
Grades: 9-12
204 Main Street
Andover, NH 03216
(603) 735-6641
Andover, NH 03216
(603) 735-6641
Rank: #99.
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)
Founding Date: 1856
Grades: 9-12
325 Pleasant Street
Concord, NH 03301
(603) 229-4700
Concord, NH 03301
(603) 229-4700
Rank: #1010.
Founding Date: 1867
Grades: 9-12
907 First Nh Tpke
Northwood, NH 03261
(603) 942-5531
Northwood, NH 03261
(603) 942-5531
Rank: #1111.
Founding Date: 1879
Grades: 9-12
33 Chapel Lane
Plymouth, NH 03264
(603) 536-1257
Plymouth, NH 03264
(603) 536-1257
Rank: #1212.
Longview School
Special Education School
Founding Date: 1905
Grades: 9-12
55 Reservation Road
Deerfield, NH 03037
(603) 463-7854
Deerfield, NH 03037
(603) 463-7854
Rank: #1313.
Easterseals Lancaster School
Special Education School
Founding Date: 1907
Grades: 5-12
525 Prospect St
Lancaster, NH 03584
(603) 206-6700
Lancaster, NH 03584
(603) 206-6700
Rank: #1414.
Wolfeboro Camp School![Wolfeboro Camp School Photo - Wolfeboro offers an excellent academic program for Middle, Upper, and ESL students. Guided by dedicated and seasoned private school faculty, the Wolfeboro curriculum includes additional emphasis on pre-prep goals, pre-college goals, and intensive ESL courses.]( "Wolfeboro Camp School Photo - Wolfeboro offers an excellent academic program for Middle, Upper, and ESL students. Guided by dedicated and seasoned private school faculty, the Wolfeboro curriculum includes additional emphasis on pre-prep goals, pre-college goals, and intensive ESL courses.")
Special Program Emphasis
Founding Date: 1910
Grades: 5-12
93 Camp School Road
Wolfeboro, NH 03894
(603) 569-3451
Wolfeboro, NH 03894
(603) 569-3451
Rank: #1515.
Estabrook Christian School
(Seventh Day Adventist)
Founding Date: 1934
Grades: 1-9
1050 Route 12A
Plainfield, NH 03781
(603) 675-2455
Plainfield, NH 03781
(603) 675-2455
Rank: #1616.
Founding Date: 1935
Grades: 9-12
18 Lehmann Way
Dublin, NH 03444
(603) 563-7075
Dublin, NH 03444
(603) 563-7075
Rank: #1717.
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
Founding Date: 1942
Grades: PK-12
222 Isaac Frye Hwy
Wilton, NH 03086
(603) 654-2391
Wilton, NH 03086
(603) 654-2391
Rank: #1818.
Cardigan Mountain School![Cardigan Mountain School Photo - Campus View]( "Cardigan Mountain School Photo - Campus View")
All-boys
Founding Date: 1945
Grades: 6-9
62 Alumni Drive
Canaan, NH 03741
(603) 523-3548
Canaan, NH 03741
(603) 523-3548
Rank: #1919.
Hampshire Country School![Hampshire Country School Photo - Island Pond is regularly used for canoeing and fishing.]( "Hampshire Country School Photo - Island Pond is regularly used for canoeing and fishing.")
All-boys
Founding Date: 1948
Grades: 3-10
28 Patey Circle
Rindge, NH 03461
(603) 899-3325
Rindge, NH 03461
(603) 899-3325
Rank: #2020.
Cedarcrest School![Cedarcrest School Photo - Cedarcrest Center for Children with Disabilities provides specialized care and education for up to 26 children, birth through age 21, with complex medical and developmental needs. Cedarcrest School serves children who are residents as well as day students who are cared for at home]( "Cedarcrest School Photo - Cedarcrest Center for Children with Disabilities provides specialized care and education for up to 26 children, birth through age 21, with complex medical and developmental needs. Cedarcrest School serves children who are residents as well as day students who are cared for at home")
Special Education School
Founding Date: 1952
Grades: K-12
91 Maple Avenue
Keene, NH 03431
(603) 358-3384
Keene, NH 03431
(603) 358-3384
Rank: #2121.
Founding Date: 1960
Grades: 9-12
197 Dover Point Rd
Dover, NH 03820
(603) 742-3206
Dover, NH 03820
(603) 742-3206
Rank: #22 - 2322. - 23.
Founding Date: 1963
Grades: 9-12
25 Columbus Ave
Concord, NH 03301
(603) 224-7419
Concord, NH 03301
(603) 224-7419
Rank: #22 - 2322. - 23.
Founding Date: 1963
Grades: 9-12
194 Lund Road
Nashua, NH 03060
(603) 889-4107
Nashua, NH 03060
(603) 889-4107
Rank: #24 - 2524. - 25.
Founding Date: 1964
Grades: 6-12
2108 River Road
Manchester, NH 03104
(603) 669-4524
Manchester, NH 03104
(603) 669-4524
Rank: #24 - 2524. - 25.
Founding Date: 1964
Grades: PK-12
106 Page Rd
Dublin, NH 03444
(603) 563-8505
Dublin, NH 03444
(603) 563-8505
Rank: #2626.
Camp E-toh-anee
All-boys | Alternative School
Founding Date: 1968
Grades: 7-12
35 Eckerd Alley Way
Colebrook, NH 03576
(603) 237-8755
Colebrook, NH 03576
(603) 237-8755
Rank: #2727.
Trinity High School
(Catholic)
Founding Date: 1970
Grades: 9-12
581 Bridge St
Manchester, NH 03104
(603) 668-2910
Manchester, NH 03104
(603) 668-2910
Rank: #2828.
Waterville Valley Academy
Special Program Emphasis
Founding Date: 1972
Grades: 9-12
88 Boulder Path Rd.
Waterville Valley, NH 03215
(603) 236-4246
Waterville Valley, NH 03215
(603) 236-4246
Rank: #29 - 3229. - 32.
Founding Date: 1974
Grades: PK-12
37 Regional Dr.
Concord, NH 03301
(603) 228-8888
Concord, NH 03301
(603) 228-8888
Rank: #29 - 3229. - 32.
Founding Date: 1974
Grades: PK-12
1386 Meredith Center Rd
Laconia, NH 03246
(603) 524-3250
Laconia, NH 03246
(603) 524-3250
Rank: #29 - 3229. - 32.
Founding Date: 1974
Grades: K-12
105 Eastern Avenue
Rochester, NH 03867
(603) 332-2848
Rochester, NH 03867
(603) 332-2848
Rank: #29 - 3229. - 32.
Nfi North Country Shelter
Special Education School
Founding Date: 1974
Grades: 8-11
US-2 & Davenport Rd
Jefferson, NH 03583
(603) 586-7161
Jefferson, NH 03583
(603) 586-7161
Rank: #33 - 3533. - 35.
Calvary Christian School
(Baptist)
Founding Date: 1976
Grades: 7-11
115 Yeaton Rd
Plymouth, NH 03264
(603) 536-4022
Plymouth, NH 03264
(603) 536-4022
Rank: #33 - 3533. - 35.
Claremont Christian Academy![Claremont Christian Academy Photo]( "Claremont Christian Academy Photo")
(Baptist)
Founding Date: 1976
Grades: PK-12
97 Maple Ave
Claremont, NH 03743
(603) 542-8759
Claremont, NH 03743
(603) 542-8759
Rank: #33 - 3533. - 35.
Tabernacle Christian School
(Baptist)
Founding Date: 1976
Grades: PK-12
242 Derry Rd
Litchfield, NH 03052
(603) 883-6310
Litchfield, NH 03052
(603) 883-6310
Show 27 more private schools in NH (out of 62 total schools)
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Frequently Asked Questions
What is the New Hampshire average private high schools founding year?
The New Hampshire average private high schools founding year is 1947 for 2025.
What are the private high schools with oldest founding year in New Hampshire?
The top ranked private high schools in New Hampshire include Phillips Exeter Academy, Kimball Union Academy and Kimball Union Academy.
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