Boarding School Review - Established 2003
Harrow International School New York
West Nottingham Academy
Linden Hall School for Girls

Oldest Founding Date

The average founding year across the 272 ranked boarding schools is 1909 (2026-27).
The boarding school with the oldest founding date is Harrow International School New York, with 1572.

Quick Facts (26-27)

  • # Boarding Schools Ranked: 272
  • Top 20 Range (Year Founded): 1572–1814

Quick Facts (26-27)

  • # Boarding Schools Ranked: 272
  • Top 20 Range (Year Founded): 1572–1814
Show school map — National (Year Founded range: 1572–2022, avg 1909)
Year Founded Range: 1572 2022 Avg. Year Founded: 1909

Oldest Founding Date (2026-27)

Sorted by range (alphabetically within range)
Harrow International School New York Photo - Harrow New York is located outside of New York City on a historic 170 acre waterfront campus.
#1Harrow International School New York
Gr: 6-12
500 Montauk Highway
Oakdale, NY 11769
(631) 869-1572
1572Year Founded
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West Nottingham Academy Photo - Nestled on 100 acres in northeast Maryland, WNA is geographically situated among Washington DC, Baltimore, MD, Wilmington, DE, Philadelphia, PA New York City, and the Delaware beaches. A campus where students learn and play.
#2West Nottingham Academy
Gr: 9-12, PG
1079 Firetower Road
Colora, MD 21917
(410) 658-9224
(10)
1744Year Founded
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Linden Hall School for Girls Photo
#3Linden Hall School for Girls
Gr: 6-12, PG
All-girls
212 E Main Street
Lititz, PA 17543
(717) 626-8512
1746Year Founded
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The Governor's Academy (formerly Governor Dummer Academy) Photo - Beautiful Setting: A 456-acre campus with extensive facilities for academics, athletics, and visual and performing arts.
#4The Governor's Academy (formerly Governor Dummer Academy)
Gr: 9-12
1 Elm Street
Byfield, MA 01922
(978) 499-3120
(8)
1763Year Founded
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Phillips Academy Andover Photo - The quintessential New England campus is 21 miles to Boston by car or train, and a 10 minute walk to downtown Andover.
#5Phillips Academy Andover
Gr: 9-12, PG
180 Main Street
Andover, MA 01810
(978) 749-4050
(16)
1778Year Founded
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Map of Phillips Exeter Academy
#6Phillips Exeter Academy
Gr: 9-12, PG
20 Main Street
Exeter, NH 03833
(603) 777-3437
(30)
1781Year Founded
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Georgetown Preparatory School Photo - Just a few miles from the heart of Washington, D.C., Georgetown Prep's 90-acre campus feels more like a small college than a high school.
#7Georgetown Preparatory School
Gr: 9-12
All-boys (Catholic)
10900 Rockville Pike
North Bethesda, MD 20852
(301) 214-1215
(4)
1789Year Founded
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Fryeburg Academy Photo
#8(T8–T9)Fryeburg Academy
Gr: 9-12, PG
745 Main Street
Fryeburg, ME 04037
(207) 935-2013
(1)
1792Year Founded
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Washington Academy Photo - Washington Academy, established in 1792, is one of the oldest day & boarding co-ed high schools in the USA. It is located on the Downeast Maine coast, and boast 425 total students from 25 different countries. The Alumni Building is one of nine buildings on its 75+ acre campus.
#8(T8–T9)Washington Academy
Gr: 9-12, PG
PO Box 190, 66 Cutler Road
East Machias, ME 04630
(207) 255-8301
1792Year Founded
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Lawrence Academy Photo
#10Lawrence Academy
Gr: 9-12
26 Powderhouse Road, P.O. Box 992
Groton, MA 01450
(978) 448-1530
(1)
1793Year Founded
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Cheshire Academy Photo - Our 104 acre (0.42 sq km) campus is in the center of the quiet, beautiful Town of Cheshire, CT. Though just a two hour drive to both Boston and New York, Cheshire is a quiet small town where students are in walking distance of a few area shops and cafes.
#11Cheshire Academy
Gr: 9-12, PG
10 Main Street
Cheshire, CT 06410
(203) 439-7250
(5)
1794Year Founded
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Oakwood Friends School Photo - Autumn colors on campus
#12Oakwood Friends School
Gr: 9-12 | 6-12 (day)
Quaker
22 Spackenkill Road
Poughkeepsie, NY 12603
(845) 462-4200
1796Year Founded
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Deerfield Academy Photo
#13Deerfield Academy
Gr: 9-12, PG
7 Boyden Lane
Deerfield, MA 01342
(413) 774-1400
(14)
1797Year Founded
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Westtown School Photo - Campus Photo
#14Westtown School
Gr: 9-12 | PK-12 (day)
Quaker
975 Westtown Rd
West Chester, PA 19382
(610) 399-7900
(44)
1799Year Founded
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Lincoln Academy Photo - Lincoln Academy's campus is large, safe, and beautiful. Located near the ocean and within a 10 minute walk of a vibrant small town, our students love living here!
#15Lincoln Academy
Gr: 9-12, PG
81 Academy Hill
Newcastle, ME 04553
(207) 563-3596
(1)
1801Year Founded
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Wilbraham & Monson Academy Photo
#16Wilbraham & Monson Academy
Gr: 8-12, PG | 6-12, PG (day)
423 Main Street
Wilbraham, MA 01095
(413) 596-9107
(11)
1804Year Founded
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Bridgton Academy Photo
#17Bridgton Academy
Gr: 12-12, PG
All-boys
11 Academy Lane
North Bridgton, ME 04057
(207) 647-3322
1808Year Founded
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Lawrenceville School Photo - The Bowl is an iconic spot on campus and is the natural gathering place for ninth grade students, who live on either side of The Bowl
#18Lawrenceville School
Gr: 9-12, PG
2500 Main Street
Lawrenceville, NJ 08648
(609) 895-2030
(6)
1810Year Founded
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Kimball Union Academy Photo
#19Kimball Union Academy
Gr: 9-12, PG
7 Campus Center Drive
Meriden, NH 03770
(603) 469-2100
(6)
1813Year Founded
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Emma Willard School Photo
#20(T20–T22)Emma Willard School
Gr: 9-12, PG
All-girls
285 Pawling Avenue
Troy, NY 12180
(518) 833-1320
(9)
1814Year Founded
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The Linsly School Photo - Linsly's lower school (grades 5-8) program of studies emphasizes the mastery of fundamental concepts through innovative cross-curricular programs and regimented learning, all of which are designed to prepare students for college preparatory curriculum of the upper school (grades 9-12).
#20(T20–T22)The Linsly School
Gr: 7-12 | 5-12 (day)
60 Knox Lane
Wheeling, WV 26003
(304) 233-1436
1814Year Founded
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North Yarmouth Academy Photo - North Yarmouth Academy Curtis Building at 148 Main Street, Yarmouth, Maine, U.S.A. This building houses the main office and many Upper School classrooms, Safford Center dining hall, art studio, and the Bicentennial Learning Commons.
#20(T20–T22)North Yarmouth Academy
Gr: 9-12, PG | PK-12, PG (day)
148 Main St
Yarmouth, ME 04096
(207) 846-2376
1814Year Founded
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Brewster Academy Photo - Brewster Academy is a private, coeducational boarding and day prep school in New Hampshire serving students in grades 912 and postgraduate. Known for its supportive community and team-based learning approach, Brewster prepares diverse thinkers for lives of purpose through rigorous academics, meaningful relationships, and opportunities that extend well beyond the classroom.
#23Brewster Academy
Gr: 9-12, PG
80 Academy Drive
Wolfeboro, NH 03894
(603) 569-7200
(10)
1820Year Founded
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New Hampton School Photo - Beautiful, 340-acre campus
#24New Hampton School
Gr: 9-12, PG
70 Main Street
New Hampton, NH 03256
(603) 677-3401
(8)
1821Year Founded
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Foxcroft Academy Photo - www.foxcroftacademy.org or follow us on Twitter @foxcroftacademy
#25Foxcroft Academy
Gr: 9-12, PG
975 West Main Street
Dover Foxcroft, ME 04426
(207) 564-8664
(2)
1823Year Founded
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Kents Hill School Photo - Our idyllic, 400-acre campus is nestled in the midst of the Belgrade Lakes and provides sweeping views of the mountains of Maine and New Hampshire.
#26Kents Hill School
Gr: 9-12, PG
PO Box 257, 1614 Main St., Rte. 17
Kents Hill, ME 04349
(207) 685-1606
(1)
1824Year Founded
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Western Reserve Academy Photo
#27Western Reserve Academy
Gr: 9-12, PG
115 College Street
Hudson, OH 44236
(330) 650-9717
1826Year Founded
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Chapel Hill-Chauncy Hall Photo
#28Chapel Hill-Chauncy Hall
Gr: 9-12, PG | 8-12, PG (day)
785 Beaver Street
Waltham, MA 02452
(781) 314-0804
1828Year Founded
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St. Timothy's School Photo - Completed in 2012, Dixon Hall is our state-of-the-art academic building. The technology-rich facility features the Taft Lecture Hall, the Coleman World Languages and Cultures Center, and a Center for Learning and Teaching.
#29St. Timothy's School
Gr: 9-12, PG
All-girls (Episcopal)
8400 Greenspring Avenue
Stevenson, MD 21153
(410) 486-7401
(2)
1832Year Founded
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Worcester Academy Photo - With over 180 courses, 45 honors and Advanced Placement (AP) courses and an immersive middle school curriculum, you are sure to find a course of instruction that excites you.
#30Worcester Academy
Gr: 9-12, PG | 6-12, PG (day)
81 Providence Street
Worcester, MA 01604
(508) 459-5481
(1)
1834Year Founded
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Bishop's College School Photo - Our mission is simple: to create a caring community of learning and development where cultures connect and individuals matter. Our commitment to excellence in academics, wellness, athletics, creativity, and service contribute to a lifetime of engagement and global competence
#31(T31–T32)Bishop's College School
Gr: 7-12
80 chemin Moulton Hill
Sherbrooke, Quebec, Canada J1M 1Z8
(819) 566-0238
1836Year Founded
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Gould Academy Photo - Gould offers amazing outdoor opportunities in the Mountains of Western Maine and at Sunday River, but at it's core Gould is a traditional New England Boarding School with remarkable faculty mentors.
#31(T31–T32)Gould Academy
Gr: 9-12, PG
39 Church Street
Bethel, ME 04217
(207) 824-7777
(2)
1836Year Founded
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Episcopal High School Photo - EHS
#33Episcopal High School
Gr: 9-12
Episcopal
1200 N. Quaker Lane
Alexandria, VA 22302
(703) 933-4062
(12)
1839Year Founded
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The Williston Northampton School Photo - Williston has 10 dorms, five for girls and five for boys. Freshmen live in separate ninth grade dorms but all other dorms are mixed grades. Outside of the dorms, students can enjoy fires around our campus fire pits, play spikeball on one of our myriad setups, and enjoy the beauty of Western Massachusetts in an Adirondack chair.
#34The Williston Northampton School
Gr: 9-12, PG | 7-12, PG (day)
19 Payson Avenue
Easthampton, MA 01027
(413) 529-3241
(18)
1841Year Founded
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Pickering College Photo - Independent Co-educational Day and Boarding School
#35(T35–T38)Pickering College
Gr: 9-12
16945 Bayview Ave
Newmarket, Ontario, Canada L3Y4X2
(905) 895-1700
(4)
1842Year Founded
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Saint James School Photo - Founded in 1842, Saint James School is a coeducational, Episcopal boarding and day school for students in grades 8-12 located in Hagerstown, Maryland.
#35(T35–T38)Saint James School
Gr: 8-12
Episcopal
17641 College Road
Hagerstown, MD 21740
(301) 733-9330
1842Year Founded
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St. Johnsbury Academy Photo - One of the most beautiful campuses in America, in one of the most beautiful states.
#35(T35–T38)St. Johnsbury Academy
Gr: 9-12, PG
1000 Main Street, PO Box 906
St. Johnsbury, VT 05819
(802) 751-2130
(3)
1842Year Founded
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Saint Mary's School Photo - At Saint Mary's School, girls take center stage. We know girls and we know the all-girl learning environment at Saint Mary's School inspires girls to step outside their comfort zone, engage their minds, amplify their voices, and discover who they are and who they want to become!
#35(T35–T38)Saint Mary's School
Gr: 9-12
All-girls (Episcopal)
900 Hillsborough Street
Raleigh, NC 27603
(919) 424-4100
(1)
1842Year Founded
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Miss Porter's School Photo
#39Miss Porter's School
Gr: 9-12
All-girls
60 Main Street
Farmington, CT 06032
(860) 409-3530
(6)
1843Year Founded
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Stuart Hall School Photo - Students come together in the Arcade before celebrating our annual Ring Ceremony
#40Stuart Hall School
Gr: 8-12, PG | 6-12, PG (day)
Episcopal
235 West Frederick Street
Staunton, VA 24401
(540) 213-7098
1844Year Founded
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Tilton School Photo - Tilton School is an independent, coeducational, college preparatory school serving students from 9th to 12th grade and postgraduates. Tilton's student body of 220 consists of day students and boarding students from 19 states and 16 countries. Although the Tilton Experience is different for every student, it challenges all students to try new things, learn new skills, and try new things.
#41Tilton School
Gr: 9-12, PG
30 School Street
Tilton, NH 03276
(603) 286-1733
(1)
1845Year Founded
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Blair Academy Photo
#42(T42–T43)Blair Academy
Gr: 9-12, PG
2 Park St
Blairstown, NJ 07825
(908) 362-2009
(9)
1848Year Founded
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Proctor Academy Photo - Students discover their sense of belonging on Proctor's beautiful New Hampshire campus, where our close-knit community helps each individual understand who they are and who they can become.
#42(T42–T43)Proctor Academy
Gr: 9-12, PG
204 Main Street - P.O. Box 500
Andover, NH 03216
(603) 735-6652
(12)
1848Year Founded
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The Frederick Gunn School Photo - The Frederick Gunn School, founded in 1850, is a co-ed boarding and day school for 350 students in grades 9-12 as well as a post-graduate year located in Washington, Connecticut.
#44(T44–T45)The Frederick Gunn School
Gr: 9-12, PG
99 Green Hill Road
Washington, CT 06793
(860) 868-7334
1850Year Founded
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San Domenico School Photo
#44(T44–T45)San Domenico School
Gr: 9-12 | K-12 (day)
1500 Butterfield Road
San Anselmo, CA 94960
(415) 258-1990
1850Year Founded
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Buffalo Seminary Photo - Our oldest tradition may be forward thinking but we are anchored in many other traditions too. Roses and white dresses for commencement. Our Social & Academic Honor Code. Morning Meeting to start the day. ..
#46(T46–T47)Buffalo Seminary
Gr: 9-12, PG
All-girls
205 Bidwell Parkway
Buffalo, NY 14222
(716) 885-6780
1851Year Founded
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The Hill School Photo - The Hill School sets a high standard for students in their dress and appearance to express pride in themselves and their respect for one another. Academic Dress is worn throughout the academic day whenever students are in an academic or public area, chapel services, sit-down meals, required evening performance, or any other designated occasion.
#46(T46–T47)The Hill School
Gr: 9-12, PG
860 Beech Street
Pottstown, PA 19464
(610) 326-1000
(8)
1851Year Founded
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Oak Ridge Military Academy Photo - Cadets gathering for the annual Corps Day Parade!
#48Oak Ridge Military Academy
Gr: 7-12
2317 Oak Ridge Road
Oak Ridge, NC 27310
(336) 515-8040
1852Year Founded
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Grier School Photo
#49Grier School
Gr: 7-12, PG | 5-12, PG (day)
All-girls
2522 Grier School Road
Birmingham, PA 16686
(814) 684-3000
(6)
1853Year Founded
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Saint Stanislaus High School Photo - We make the most of our location right on the Bay, developing unique programs, clubs, and activities for our students to enjoy. Our scuba and sailing clubs enjoy time in the water, while our environmental club focuses on care for our oceans, too.
#50Saint Stanislaus High School
Gr: 7-12
All-boys (Catholic)
304 S. Beach Blvd.
Bay St. Louis, MS 39520
(228) 467-9057
1854Year Founded
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Wayland Academy Photo - Wayland Hall, the most historic buildings on campus, currently houses first-year and sophomore boys. The interior was remodeled recently and offers some of the nicest rooms and gathering spaces on any campus in America.
#51Wayland Academy
Gr: 9-12, PG
101 North University
Beaver Dam, WI 53916
(800) 860-7725
(4)
1855Year Founded
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St. Paul's School Photo
#52St. Paul's School
Gr: 9-12
Episcopal
325 Pleasant Street
Concord, NH 03301
(603) 229-4700
(4)
1856Year Founded
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Albert College Photo - We are Canada's oldest co-ed boarding and day school, established in 1857. Our Senior School is a beautiful historic building, built in 1923.
#53(T53–T55)Albert College
Gr: 7-12 | PK-12 (day)
160 Dundas Street West
Belleville, Canada K8P 1A6
(613) 968-5726
(14)
1857Year Founded
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Lake Forest Academy Photo - Lake Forest Academy's 452 students are from over 19 states and 40 countries. Our student body includes 22% international students, 43% domestic students of color, and 34% of students receive financial aid.
#53(T53–T55)Lake Forest Academy
Gr: 9-12, PG
1500 West Kennedy Road
Lake Forest, IL 60045
(847) 615-3267
(2)
1857Year Founded
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Saint John's Preparatory School Photo - We are located on 2900 of woodlands and lakes in Collegeville, MN
#53(T53–T55)Saint John's Preparatory School
Gr: 8-12, PG | 6-12, PG (day)
Catholic
2280 Watertower Road
Collegeville, MN 56321
(320) 363-3315
1857Year Founded
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St. Lawrence Seminary High School Photo
#56St. Lawrence Seminary High School
Gr: 9-12
All-boys (Catholic)
301 Church Street
Mt. Calvary, WI 53057
(920) 753-7570
1860Year Founded
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Iolani School Photo
#57(T57–T58)Iolani School
Gr: 9-12 | K-12 (day)
Episcopal
563 Kamoku Street
Honolulu, HI 96826
(808) 943-2379
1863Year Founded
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Maur Hill - Mount Academy (MH-MA) Photo
#57(T57–T58)Maur Hill - Mount Academy (MH-MA)
Gr: 9-12
Catholic
1000 Green St.
Atchison, KS 66002
(913) 367-5482
1863Year Founded
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The Peddie School Photo
#59The Peddie School
Gr: 9-12, PG
201 South Main Street
Hightstown, NJ 08520
(609) 944-7501
1864Year Founded
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Cushing Academy Photo - Cushing Academy is located on a 162-acre campus in Ashburnham, Massachusetts
#60(T60–T62)Cushing Academy
Gr: 9-12, PG
39 School Street
Ashburnham, MA 01430
(978) 827-7300
(3)
1865Year Founded
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St. Mary's School Photo
#60(T60–T62)St. Mary's School
Gr: 6-12 | 5-12 (day)
Catholic
816 Black Oak Drive
Medford, OR 97504
(541) 773-7877
1865Year Founded
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Trinity College School Photo
#60(T60–T62)Trinity College School
Gr: 9-12 | 5-12 (day)
Anglican
55 Deblaquire St N.
Port Hope, Canada L1A4K7
(905) 885-3209
(5)
1865Year Founded
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Fay School Photo - Fay School is an independent, co-educational school 25 miles from Boston serving students in kindergarten through grade 9, with boarding available for grades 7-9. Our school is a place of discovery, challenge, collaboration, and growth - a closely-knit learning community where our skillful, dedicated faculty inspires students to achieve excellence in all pursuits.
#63Fay School
Gr: 7-9 | K-9 (day)
48 Main Street
Southborough, MA 01772
(508) 490-8201
(1)
1866Year Founded
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Lyndon Institute Photo
#64(T64–T65)Lyndon Institute
Gr: 9-12, PG
PO Box 127, 168 Institute Circle
Lyndon Center, VT 05850
(802) 535-3700
1867Year Founded
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Oldfields School Photo - Oldfields School`s Mission is to embrace each student`s authentic self, educate through collaboration, empower the individual voice, and inspire confidence and continual growth, leading to a life of purpose.
#64(T64–T65)Oldfields School
Gr: 8-12, PG
All-girls
1500 Glencoe Road
Sparks Glencoe, MD 21152
(443) 662-1009
(13)
1867Year Founded
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St. Andrew's-Sewanee School Photo - Founded in 1868, St. Andrew's-Sewanee and its students enjoy many long held traditions like the Morning Watch, ringing the Chapel Bells after a victory, Creative Expression Assemblies, Winterim, and the International Flag Ceremony. Recent additions include the Tri-Tree Competition, the pancake race, and the Blessing of the Animals.
#66St. Andrew's-Sewanee School
Gr: 7-12 | 6-12 (day)
Episcopal
290 Quintard Rd.
Sewanee, TN 37375
(931) 598-5651
(6)
1868Year Founded
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Oregon Episcopal School Photo - Since 1869, our mission has been to inspire intellectual, physical, social, emotional, artistic, and spiritual growth so that students realize their power for good as citizens of local and world communities.
#67Oregon Episcopal School
Gr: 9-12, PG | PK-12, PG (day)
Episcopal
6300 SW Nicol Road
Portland, OR 97223
(503) 768-3115
1869Year Founded
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The Webb School Photo
#68The Webb School
Gr: 7-12 | 6-12 (day)
319 Webb Road East
Bell Buckle, TN 37020
(931) 389-6003
(10)
1870Year Founded
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Stanstead College Photo
#69Stanstead College
Gr: 7-12, PG
450 Dufferein
Stanstead, Canada 05830
(819) 876-2223
(2)
1872Year Founded
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Academy of the Holy Family Photo - Ambassadors Club
#70(T70–T71)Academy of the Holy Family
Gr: 9-12
All-girls (Catholic)
54 W. Main Street Box 691
Baltic, CT 06330
(860) 822-6279
1874Year Founded
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Loomis Chaffee Photo - Loomis` beautiful 300-acre campus is located at the confluence of the Farmington and Connecticut rivers in Windsor, Connecticut. Affectionately referred to as the Island, Loomis is within walking distance of the town`s center, Amtrak train station, and other areas of interest.
#70(T70–T71)Loomis Chaffee
Gr: 9-12, PG
4 Batchelder Road
Windsor, CT 06095
(860) 687-6400
(30)
1874Year Founded
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Perkiomen School Photo - Innovation Center
#72(T72–T73)Perkiomen School
Gr: 6-12, PG
200 Seminary Street
Pennsburg, PA 18073
(215) 679-9511
(5)
1875Year Founded
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Wasatch Academy Photo - Wasatch Academy sits on a beautiful 35-acre campus located in central Utah, 90 minutes south of Salt Lake City in the quaint town of Mt. Pleasant, Utah.
#72(T72–T73)Wasatch Academy
Gr: 8-12, PG
120 South 100 West
Mt. Pleasant, UT 84647
(435) 462-1400
(5)
1875Year Founded
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Tabor Academy Photo
#74Tabor Academy
Gr: 9-12
226 Front Street
Marion, MA 02738
(508) 291-8300
1876Year Founded
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The Masters School Photo
#75The Masters School
Gr: 9-12 | 5-12 (day)
49 Clinton Avenue
Dobbs Ferry, NY 10522
(914) 479-6400
(10)
1877Year Founded
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Miller School of Albemarle Photo - Miller School of Albemarle, a coeducational day and boarding college preparatory school for students in grades 8-12 and post-graduate, opened its doors in 1878 with 33 students. Girls first enrolled in 1884, making it one of the nation`s oldest coeducational boarding schools. The school is situated 12 miles west of Charlottesville on a gently rolling campus of 1600 pristine acres.
#76(T76–T77)Miller School of Albemarle
Gr: 8-12, PG
1000 Samuel Miller Loop
Charlottesville, VA 22903
(434) 818-1385
1878Year Founded
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Oak Hill Academy Photo
#76(T76–T77)Oak Hill Academy
Gr: 8-12
Baptist
2635 Oak Hill Road
Mouth of Wilson, VA 24363
(276) 579-2619
(1)
1878Year Founded
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Fishburne Military School Photo - Fishburne Military School is the smallest all-boys military boarding school in Virginia. Our cadets come from 18 different states and 4 countries. Located in Waynesboro VA, Fishburne continues to be a pillar of all-boys education since Fishburne's founding in 1879.
#78(T78–T80)Fishburne Military School
Gr: 8-12 | 6-12 (day)
All-boys
225 S. Wayne Avenue
Waynesboro, VA 22980
(540) 946-7706
(7)
1879Year Founded
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Holderness School Photo - In the Holderness classroom, each student is literally in the front row, with an average class size of 12. We offer AP courses spanning multiple disciplines and encourage students to pursue an intellectual passion of their own in their twelfth-grade year as part of the Senior Thesis program.
#78(T78–T80)Holderness School
Gr: 9-12, PG
Episcopal
PO Box 1879
Plymouth, NH 03264
(603) 536-1747
(9)
1879Year Founded
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Northfield Mount Hermon Photo - NMH is a coed boarding school serving 650 students in grades 9-12. We also offer a postgraduate year. Our wooded campus borders the Connecticut River in western Massachusetts, and in this beautiful setting, we challenge young people to think hard, work hard, discover new talents, and hone the ones they already possess.
#78(T78–T80)Northfield Mount Hermon
Gr: 9-12, PG
One Lamplighter Way
Mount Hermon, MA 01354
(413) 498-3227
(15)
1879Year Founded
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The King's Academy Photo - 65-Acres located in the foothills of The Great Smoky Mountains.
#81The King's Academy
Gr: 7-12 | PK-12 (day)
Christian
202 Smothers Road
Seymour, TN 37865
(865) 573-8321
(3)
1880Year Founded
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Dana Hall School Photo
#82Dana Hall School
Gr: 9-12 | 5-12 (day)
All-girls
45 Dana Road
Wellesley, MA 02482
(781) 489-1331
(6)
1881Year Founded
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Annie Wright Schools Photo - Annie Wright Schools, located in Tacoma, WA serves students pre-kindergarten through 12th grade. Our upper schools program provides boarding for 9-12th students and a co-educational model of classroom learning
#83(T83–T84)Annie Wright Schools
Gr: 9-12 | PK-12 (day)
827 N Tacoma Ave
Tacoma, WA 98403
(253) 284-8603
1884Year Founded
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St. John's Northwestern Academy Photo - Students walking through campus.
#83(T83–T84)St. John's Northwestern Academy
Gr: 7-12, PG
Episcopal
1101 Genesee Street
Delafield, WI 53018
(262) 646-7199
(4)
1884Year Founded
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The Cambridge School of Weston Photo - With over 200 courses to choose from, our dynamic curriculum allows students to balance engaging foundational courses with exploration and in-depth study as they choose from offerings like: "Multivariable Calculus," "The Biology of Cancer," "Wearable Art," "Japanese Women Writers," and "U.S. Cold War and Vietnam."
#85The Cambridge School of Weston
Gr: 9-12, PG
45 Georgian Road
Weston, MA 02493
(781) 642-8650
(17)
1886Year Founded
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Subiaco Academy Photo - Named by Architecture Digest as one of "The World's Most Beautiful Boarding Schools," the modified Romanesque style architecture was rebuilt in 1959 using native sandstone taken from our own quarries about a mile northeast of the Abbey.
#86Subiaco Academy
Gr: 7-12
All-boys (Catholic)
405 North Subiaco Avenue
Subiaco, AR 72865
(479) 934-1000
(4)
1887Year Founded
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The Kiski School Photo - Beginning in 2024, Kiski will offer co-education, extending our outstanding opportunities and unique educational environment to both boys and girls.
#87(T87–T88)The Kiski School
Gr: 9-12, PG
1888 Brett Lane
Saltsburg, PA 15681
(724) 639-8035
1888Year Founded
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Westminster School Photo - Gund Reading Room in the Cole Library, a stunning place to study, meet and hold events.
#87(T87–T88)Westminster School
Gr: 9-12, PG
995 Hopmeadow Street
Simsbury, CT 06070
(860) 408-3060
(10)
1888Year Founded
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Hoosac School Photo - Hoosac School was founded in 1889.
#89(T89–T94)Hoosac School
Gr: 8-12, PG
Episcopal
14 Pine Valley Road
Hoosick, NY 12089
(518) 686-7331
1889Year Founded
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Missouri Military Academy Photo - Established in 1889, Missouri Military Academy has transformed young men into leaders who are well-educated, prepared gentlemen of character. Our long history and distinct traditions inspire a sense of pride and duty among the young men who seek to fulfill their potential at MMA.
#89(T89–T94)Missouri Military Academy
Gr: 7-12, PG
All-boys (Non-denom. / Christian)
204 Grand Street
Mexico, MO 65265
(573) 581-1776
(7)
1889Year Founded
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New York Military Academy Photo - New York Military Academy, established in 1889 in Cornwall-on-Hudson, New York, is a private, international boarding school serving grades 7 through 12. NYMA is dedicated to a comprehensive and substantive process of developing young leaders who are `Set Apart for Excellence`. Our goal is to prepare our cadets for success and fulfillment in college and in life.
#89(T89–T94)New York Military Academy
Gr: 9-12, PG
78 Academy Ave.
Cornwall-on-Hudson, NY 12520
(845) 618-7335
(2)
1889Year Founded
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Ridley College Photo
#89(T89–T94)Ridley College
Gr: 6-12, PG | PK-12, PG (day)
2 Ridley Road
St.Catharines, Canada L2R7C3
(905) 684-1889
(17)
1889Year Founded
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The Thacher School Photo - In courses designed for intellectual and creative expansion, students and teachers meet in seminar circles, studios, and laboratories to create a learning environment that is vigorous and supportive, galvanizing and nurturing.
#89(T89–T94)The Thacher School
Gr: 9-12
5025 Thacher Road
Ojai, CA 93023
(805) 640-3210
(26)
1889Year Founded
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Woodberry Forest School Photo
#89(T89–T94)Woodberry Forest School
Gr: 9-12
All-boys (Non-denom. / Christian)
241 Woodberry Station
Woodberry Forest, VA 22989
(888) 798-9371
(2)
1889Year Founded
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Choate Rosemary Hall Photo
#95(T95–T98)Choate Rosemary Hall
Gr: 9-12, PG
333 Christian Street
Wallingford, CT 06492
(203) 697-2239
(30)
1890Year Founded
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The MacDuffie School Photo - Aerial view of MacDuffie's 250 acre campus
#95(T95–T98)The MacDuffie School
Gr: 6-12, PG
66 School Street
Granby, MA 01033
(413) 255-0000
(1)
1890Year Founded
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Saint Bede Academy Photo - With an average student population of 300, our small class sizes offer students one-on-one interaction with their instructors.
#95(T95–T98)Saint Bede Academy
Gr: 9-12
Catholic
24 W US Highway 6
Peru, IL 61354
(815) 250-0285
1890Year Founded
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The Taft School Photo - Our beautiful campus features facilities that rival those of many small colleges, including a library with 55,000 print volumes; a 45,000 square foot science and mathematics building; two theaters; two ice hockey rinks; and an 18-hole golf course.
#95(T95–T98)The Taft School
Gr: 9-12, PG
110 Woodbury Road
Watertown, CT 06795
(860) 945-7700
(3)
1890Year Founded
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Ashbury College Photo - Founded in 1891, Ashbury College is a proud international school in the heart of Canada's capital.
#99(T99–T101)Ashbury College
Gr: 9-12 | 3-12 (day)
362 Mariposa Avenue
Ottawa, Canada K1M 0T3
(613) 749-9630
(15)
1891Year Founded
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New Mexico Military Institute Photo - Cadets forge lifelong friendships at NMMI.
#99(T99–T101)New Mexico Military Institute
Gr: 9-12, PG
101 West College Blvd
Roswell, NM 88201
(800) 421-5376
(7)
1891Year Founded
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Frequently Asked Questions

Which boarding schools have the oldest founding dates?
The boarding schools with the oldest founding dates are Harrow International School New York, West Nottingham Academy and Linden Hall School for Girls.
How many boarding schools are ranked for the oldest founding dates?
272 boarding schools are ranked for the oldest founding dates.

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The "founding dates" below are the dates that schools have traditionally.
Note that the definition of "founding date" may differ slightly from school to school (e.g., whether it selects the year the school first received its charter or the year it first admitted students - regardless, the differences between the two are often small).

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