The Linsly School Photo - Linsly offers athletics for both Lower and Upper School students. Linsly's Upper School offers a superior athletic program, with more than 20 interscholastic teams competing in the Ohio Valley Athletic Conference

Best Non-denominational Boarding Schools (2026)

For the 2026 school year, there are 188 non-denominational boarding schools serving 73,028 students located throughout the United States and Canada.

Top Non-denominational Boarding Schools (2026)

A+ World Academy Photo - #climbinghigh to get to the top of the mast at A+ World Academy
Gr: 11-12, PG | 64 students
Student-teacher ratio: 7:1
Avg. class size: 12 students
Tuition listed
International (on a Tall Ship)
Kristiansand, Norway 4610
3475677083
(8)
The Academy at SOAR Photo - The Academy at SOAR is an accredited private boarding school. Students will graduate with a high school diploma.
Gr: 7-12 | 32 students
Student-teacher ratio: 8:1
Avg. class size: 8 students
Tuition listed
PO Box 388
Balsam, NC 28707
(828) 456-3435
Admiral Farragut Academy Photo - Steeped in history, with alumni in the White House, on the surface of the moon, professional athletes, and in key leadership positions around the world, Admiral Farragut Academy is an international university preparatory school offering elite academics and outstanding global leadership development. AFA's global headquarters and international boarding school is located on the waterfront in tropical St. Petersburg, Florida.
Gr: 8-12 | K-12 (day) | 467 students
Student-teacher ratio: 15:1
Avg. class size: 17 students
Acceptance rate: 68%
Tuition listed
501 Park Street North
St. Petersburg, FL 33710
(727) 384-5504
(9)
Belleville,
Gr: 7-12 | PK-12 (day) | 308 students
Student-teacher ratio: 8:1
Avg. class size: 15 students
Tuition listed
160 Dundas Street West
Belleville, Canada K8P 1A6
(613) 968-5726
Tacoma, WA
Gr: 9-12 | Pre-K-12 (day) | 880 students
Student-teacher ratio: 6.5:1
Avg. class size: 17 students
Tuition listed
827 N Tacoma Ave
Tacoma, WA 98403
(253) 284-8603
Applewild School Photo - Upper School students participate in challenging courses in English, math, and social studies. They study science through experiential work and collaborative experiments.
Gr: 4-9 | PK-9 (day) | 345 students
Student-teacher ratio: 6:1
Avg. class size: 12 students
Tuition listed
120 Prospect Street
Fitchburg, MA 01420
(978) 342-6053
Ashbury College Photo - Founded in 1891, Ashbury College is a proud international school in the heart of Canada's capital.
Gr: 9-12 | 4-12 (day) | 750 students
Student-teacher ratio: 8:1
Avg. class size: 17 students
Acceptance rate: 65%
Tuition listed
362 Mariposa Avenue
Ottawa, Canada K1M 0T3
(613) 749-9630
(4)
The Athenian School Photo
Gr: 9-12 | 6-12 (day) | 535 students
Student-teacher ratio: 10:1
Avg. class size: 15 students
Tuition listed
2100 Mt. Diablo Scenic Blvd.
Danville, CA 94506
(925) 362-7223
(1)
Sandy Springs, GA
Gr: 9-12 | PK-12 (day)
Tuition listed
1701 Brandon Hall Drive
Sandy Springs, GA 30350
(404) 841-3840
Avon, CT
Gr: 9-12, PG | 405 students
Student-teacher ratio: 6:1
Avg. class size: 12 students
Acceptance rate: 45%
Tuition listed
All-boys
500 Old Farms Road
Avon, CT 06001
(800) 464-2866
(6)
Baylor School Photo - Baylor School is situated on 690 acres along the Tennessee River.
Gr: 9-12 | 6-12 (day) | 1,050 students
Student-teacher ratio: 9:1
Avg. class size: 14 students
Acceptance rate: 40%
Tuition listed
171 Baylor School Road
Chattanooga, TN 37405
(423) 267-5902
(4)
The Bement School Photo
Gr: 3-9 | K-9 (day) | 225 students
Student-teacher ratio: 5:1
Avg. class size: 12 students
Acceptance rate: 45%
Tuition listed
94 Old Main Street, PO Box 8
Deerfield, MA 01342
(413) 774-4209
Berkshire School Photo - Founded in 1907, Berkshire School is a coed college preparatory boarding and day school for 400 ninth-12th graders and post-graduates, offering a forward-thinking curriculum and state-of-the-art facilities on a 400-acre campus in Sheffield, Mass.
Gr: 9-12, PG | 425 students
Student-teacher ratio: 4:1
Avg. class size: 12 students
Acceptance rate: 20%
Tuition listed
245 North Undermountain Road
Sheffield, MA 01257
(413) 229-1003
(17)
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
Gr: 7-12 | 250 students
Student-teacher ratio: 8:1
Avg. class size: 15 students
Tuition listed
80 chemin Moulton Hill
Sherbrooke, Quebec, Canada J1M 1Z8
(819) 566-0238
Blair Academy Photo
Gr: 9-12, PG | 475 students
Student-teacher ratio: 6:1
Avg. class size: 11 students
Acceptance rate: 15%
Tuition listed
2 Park St
Blairstown, NJ 07825
(908) 362-2009
(9)
Bodwell High School Photo - Bodwell High School is located in North Vancouver, overlooking the Vancouver skyline. The modern campus boasts space for 600+ boarders and has extensive facilities throughout.
Gr: 8-12 | 550 students
Student-teacher ratio: 20:1
Avg. class size: 20 students
Acceptance rate: 95%
Tuition listed
955 Harbourside Drive
North Vancouver, BC, Canada V7P 3S4
(604) 998-1000
Jacksonville, FL
Gr: 9-12, PG | PK-12, PG (day) | 1,756 students
Student-teacher ratio: 10:1
Avg. class size: 15 students
Acceptance rate: 34%
Tuition listed
7400 San Jose Blvd.
Jacksonville, FL 32217
(904) 256-5030
Branksome Hall Photo
Gr: 7-12 | PK-12 (day) | 910 students
Student-teacher ratio: 12:1
Avg. class size: 19 students
Acceptance rate: 33%
Tuition listed
All-girls
10 Elm Avenue
Toronto, Canada m4w 1n4
(416) 920-9741
Jeju-do,
Gr: 6-12 | PK-12 (day) | 1,200 students
Student-teacher ratio: 8:1
Avg. class size: 20 students
Acceptance rate: 50%
Tuition listed
234 Global edu-ro, Daejeong-eup, Seogwipo-si
Jeju-do, South Korea 63644
82649025000
Carbondale IL, IL
Gr: 6-12, PG
Student-teacher ratio: 6:1
Avg. class size: 6 students
Acceptance rate: 100%
Tuition listed
900 South Brehm Lane
Carbondale IL, IL 62901
(618) 457-0371
Brentwood College School Photo - Crooks Hall, our oceanfront dining room and student services centre, is designed to be a warm, welcoming, west coast style facility, which is student friendly and environmentally responsible.For students, it is a one-stop social experience and the heart of campus where everyone can eat, relax, socialize, buy school supplies, pick up laundry, and host meetings.
Gr: 9-12, PG | 8-12, PG (day) | 535 students
Student-teacher ratio: 8:1
Avg. class size: 16 students
Acceptance rate: 30%
Tuition listed
2735 Mt. Baker Road
Mill Bay, BC V8H 1K8, Canada 1
(250) 743-5521
(1)
Brewster Academy Photo - Welcome to Wolfeboro! Brewster's lakeside location provides students with a variety of resources on and off campus. Our outdoor facilities include six athletic fields, nine tennis courts, and a boathouse which provides storage and work areas for rowing shells and "420" racing sailboats.
Gr: 9-12, PG | 350 students
Student-teacher ratio: 6:1
Avg. class size: 12 students
Acceptance rate: 50%
Tuition listed
80 Academy Drive
Wolfeboro, NH 03894
(603) 569-7200
(10)
Bridgton Academy Photo - Our Humanities Center is one of two academic buildings on campus, and the hub for our academic administration, Focused Academic Coaching, Academic Support, and the Marcella/Sands Lecture Hall.
Gr: 12-12, PG | 180 students
Student-teacher ratio: 4:1
Avg. class size: 12 students
Acceptance rate: 70%
Tuition listed
All-boys
11 Academy Lane
North Bridgton, ME 04057
(207) 647-3322
Buxton School Photo - At Buxton, we provide the time, experience, and environment that inspire young people to learn more and go deeper. Our students are doers, both in school and in life. Education at Buxton is not passive; it is a stimulating and constant process of questioning, discovering, synthesizing and sharing.
Gr: 9-12, PG | 50 students
Student-teacher ratio: 3:1
Avg. class size: 7 students
Tuition listed
291 South Street
Williamstown, MA 01267
(413) 458-3919
(1)
The Calverton School Photo - Friendships are made across divisions at Calverton.
Gr: 8-12, PG | PK-12, PG (day) | 323 students
Student-teacher ratio: 7:1
Avg. class size: 12 students
Tuition listed
300 Calverton School Rd
Huntingtown, MD 20639
(410) 535-0216
The Cambridge School of Weston Photo - With over 250 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."
Gr: 9-12, PG | 315 students
Student-teacher ratio: 7:1
Avg. class size: 14 students
Tuition listed
45 Georgian Road
Weston, MA 02493
(781) 642-8650
(15)
Cardigan Mountain School Photo
Gr: 6-9 | 230 students
Student-teacher ratio: 4:1
Avg. class size: 12 students
Acceptance rate: 74%
Tuition listed
All-boys
62 Alumni Drive
Canaan, NH 03741
(603) 523-3548
(2)
Cate School Photo - Day Walk
Gr: 9-12 | 311 students
Student-teacher ratio: 5:1
Avg. class size: 10 students
Acceptance rate: 17%
Tuition listed
1960 Cate Mesa Road, P.O. Box 5005
Carpinteria, CA 93013
(805) 684-4127
(19)
CATS Academy Boston Photo - Adams Hall
Gr: 8-12, PG | 380 students
Student-teacher ratio: 9:1
Avg. class size: 14 students
Acceptance rate: 70%
Tuition listed
2001 Washington Street
Braintree, MA 02184
(857) 400-9700
(1)
CATS Cambridge Photo
Gr: 9-12, PG
Avg. class size: 11 students
1 High St, Chesterton
Cambridge, United Kingdom CB4 1NQ
4401223341300
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.
Gr: 9-12, PG | 343 students
Student-teacher ratio: 6:1
Avg. class size: 10 students
Acceptance rate: 45%
Tuition listed
10 Main Street
Cheshire, CT 06410
(203) 439-7250
(5)
Choate Rosemary Hall Photo
Gr: 9-12, PG | 859 students
Student-teacher ratio: 6:1
Avg. class size: 11 students
Acceptance rate: 16%
Tuition listed
333 Christian Street
Wallingford, CT 06492
(203) 697-2239
(30)
Collège du Léman Sàrl Photo
Gr: 4-12 | Pre-K-12 (day) | 1,900 students
Tuition listed
Route de Sauverny 74
Geneva, Switzerland 1290
41227755656
(1)
Carbondale, CO
Gr: 9-12 | 174 students
Student-teacher ratio: 5:1
Avg. class size: 12 students
Acceptance rate: 55%
Tuition listed
500 Holden Way
Carbondale, CO 81623
(970) 963-2562
(8)
Colorado Timberline Academy Photo - Fall Trip in the Slot Canyons
Gr: 9-12, PG | 40 students
Student-teacher ratio: 4:1
Avg. class size: 6 students
Acceptance rate: 90%
Tuition listed
454 Academy Drive
Durango, CO 81301
(970) 247-5898
(4)
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