Cotter Schools Photo

Best English as a Second Language Boarding Schools (2026)

For the 2026 school year, there are 180 college-preparatory and junior boarding schools that offer ESL (English as a Second Language), serving 64,513 students.

Top English as a Second Language Boarding Schools (2026)

School
Location
Quick Facts
Admiral Farragut Academy
(9)
501 Park Street North
St. Petersburg, FL 33710
(727) 384-5504
Gr: 8-12 | K-12 (day) | 467 students Student-teacher ratio: 15:1 Avg. class size: 17 students Acceptance rate: 68% Tuition listed
Albert College
160 Dundas Street West
Belleville, Canada K8P 1A6
(613) 968-5726
Gr: 7-12 | PK-12 (day) | 308 students Student-teacher ratio: 8:1 Avg. class size: 15 students Tuition listed
Applewild School
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.
120 Prospect Street
Fitchburg, MA 01420
(978) 342-6053
Gr: 4-9 | PK-9 (day) | 345 students Student-teacher ratio: 6:1 Avg. class size: 12 students Tuition listed
Army and Navy Academy
Army and Navy Academy Photo
(secular)
(4)
2605 Carlsbad Blvd.
Carlsbad, CA 92008
(888) 762-2338
Gr: 7-12 | 275 students Student-teacher ratio: 13:1 Avg. class size: 15 students Acceptance rate: 73% Tuition listed
Ashbury College
Ashbury College Photo - Founded in 1891, Ashbury College is a proud international school in the heart of Canada's capital.
(4)
362 Mariposa Avenue
Ottawa, Canada K1M 0T3
(613) 749-9630
Gr: 9-12 | 4-12 (day) | 750 students Student-teacher ratio: 8:1 Avg. class size: 17 students Acceptance rate: 65% Tuition listed
Asia Pacific International School Hawaii
Asia Pacific International School Hawaii Photo
(Christian)
(1)
54-230 Kamehameha Hwy
Hauula, HI 96717
(808) 670-1909
Gr: 5-12, PG | K-12, PG (day) | 130 students Student-teacher ratio: 10:1 Avg. class size: 12 students Acceptance rate: 90% Tuition listed
The Athenian School
The Athenian School Photo
(1)
2100 Mt. Diablo Scenic Blvd.
Danville, CA 94506
(925) 362-7223
Gr: 9-12 | 6-12 (day) | 535 students Student-teacher ratio: 10:1 Avg. class size: 15 students Tuition listed
Athol Murray College of Notre Dame
Athol Murray College of Notre Dame Photo - One of Canada's Leading Hockey Development Programs with 12 Male and Female teams from U15 Prep to Jr. A Level. No other High School in the world has developed more Elite, Junior, NCAA, USPORTS, National, Olympic, NHL and professional hockey players then Notre Dame College. 215+ students drafted to NHL alone (played and or coached).
(rooted in Catholic Tradition)
PO Box 100
Wilcox, Canada S0G5E0
(306) 732-1203
Gr: 9-12 | 300 students Student-teacher ratio: 9:1 Avg. class size: 17 students Acceptance rate: 80% Tuition listed
1701 Brandon Hall Drive
Sandy Springs, GA 30350
(404) 841-3840
Gr: 9-12 | PK-12 (day) Tuition listed
The Bement School
The Bement School Photo
94 Old Main Street, PO Box 8
Deerfield, MA 01342
(413) 774-4209
Gr: 3-9 | K-9 (day) | 225 students Student-teacher ratio: 5:1 Avg. class size: 12 students Acceptance rate: 45% Tuition listed
Besant Hill School
Besant Hill School Photo - Besant Hill School is located in the Ojai Valley, on 500 acres of private land with beautiful vistas in every direction. Facilities include four dormitories, outdoor sports facilities including a new aquatic center, indoor theater, atelier, and classrooms nestled along winding paths and oak trees. We also have an eight acre organic farm.
(non-sectarian)
(1)
8585 Ojai Santa Paula Road
Ojai, CA 93023
(805) 646-4343
Gr: 9-12, PG | 100 students Student-teacher ratio: 4:1 Avg. class size: 8 students Acceptance rate: 50% Tuition listed
80 chemin Moulton Hill
Sherbrooke, Quebec, Canada J1M 1Z8
(819) 566-0238
Gr: 7-12 | 250 students Student-teacher ratio: 8:1 Avg. class size: 15 students Tuition listed
Blue Ridge School
Blue Ridge School Photo - Our lake offers students a chance to relax, fish, canoe - in the center of campus.
(Non-denominational Christian)
(7)
273 Mayo Drive
St. George, VA 22935
(434) 985-2811
Gr: 9-12 | 170 students Student-teacher ratio: 5:1 Avg. class size: 9 students Acceptance rate: 49% Tuition listed
Bodwell High School
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.
955 Harbourside Drive
North Vancouver, BC, Canada V7P 3S4
(604) 998-1000
Gr: 8-12 | 550 students Student-teacher ratio: 20:1 Avg. class size: 20 students Acceptance rate: 95% Tuition listed
The Bolles School
7400 San Jose Blvd.
Jacksonville, FL 32217
(904) 256-5030
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
Branksome Hall Asia
234 Global edu-ro, Daejeong-eup, Seogwipo-si
Jeju-do, South Korea 63644
82649025000
Gr: 6-12 | PK-12 (day) | 1,200 students Student-teacher ratio: 8:1 Avg. class size: 20 students Acceptance rate: 50% Tuition listed
900 South Brehm Lane
Carbondale IL, IL 62901
(618) 457-0371
Gr: 6-12, PG Student-teacher ratio: 6:1 Avg. class size: 6 students Acceptance rate: 100% Tuition listed
Brewster Academy
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.
(10)
80 Academy Drive
Wolfeboro, NH 03894
(603) 569-7200
Gr: 9-12, PG | 350 students Student-teacher ratio: 6:1 Avg. class size: 12 students Acceptance rate: 50% Tuition listed
Bridgton Academy
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.
11 Academy Lane
North Bridgton, ME 04057
(207) 647-3322
Gr: 12-12, PG | 180 students Student-teacher ratio: 4:1 Avg. class size: 12 students Acceptance rate: 70% Tuition listed
Bronte College
Bronte College Photo - Bronte College Students
(non-denominational school)
(2)
88 Bronte College Court
Mississauga, Ontario, Canada L5B1M9
(905) 270-7788
Gr: 9-12 | 400 students Student-teacher ratio: 18:1 Avg. class size: 18 students Acceptance rate: 80% Tuition listed
The Brook Hill School
The Brook Hill School Photo - The Brook Hill School. Christ-Centered. College Prep.
(non-denominational, conservative, evangelical, Christian tradition)
(3)
1051 N Houston
Bullard, TX 75757
(903) 894-5000
Gr: 8-12 | PK-12 (day) | 850 students Student-teacher ratio: 9:1 Avg. class size: 14 students Acceptance rate: 71% Tuition listed
Buxton School
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.
(1)
291 South Street
Williamstown, MA 01267
(413) 458-3919
Gr: 9-12, PG | 50 students Student-teacher ratio: 3:1 Avg. class size: 7 students Tuition listed
The Calverton School
The Calverton School Photo - Friendships are made across divisions at Calverton.
300 Calverton School Rd
Huntingtown, MD 20639
(410) 535-0216
Gr: 8-12, PG | PK-12, PG (day) | 323 students Student-teacher ratio: 7:1 Avg. class size: 12 students Tuition listed
Camden Military Academy
Camden Military Academy Photo - A proud family!
(non-sectarian)
(18)
520 Hwy. 1 North
Camden, SC 29020
(803) 432-6001
Gr: 7-12, PG | 300 students Student-teacher ratio: 7:1 Avg. class size: 12 students Acceptance rate: 80% Tuition listed
Cardigan Mountain School
Cardigan Mountain School Photo
(2)
62 Alumni Drive
Canaan, NH 03741
(603) 523-3548
Gr: 6-9 | 230 students Student-teacher ratio: 4:1 Avg. class size: 12 students Acceptance rate: 74% Tuition listed
CATS Academy Boston
CATS Academy Boston Photo - Adams Hall
(1)
2001 Washington Street
Braintree, MA 02184
(857) 400-9700
Gr: 8-12, PG | 380 students Student-teacher ratio: 9:1 Avg. class size: 14 students Acceptance rate: 70% Tuition listed
CATS Cambridge
CATS Cambridge Photo
1 High St, Chesterton
Cambridge, United Kingdom CB4 1NQ
4401223341300
Gr: 9-12, PG Avg. class size: 11 students
Chaminade College Preparatory School
Chaminade College Preparatory School Photo - Chaminade is located 20 minutes outside of Downtown St. Louis in the lovely, safe, green neighborhood of Creve Coeur. Our 55 acre campus is fun and lively throughout the school year and a wonderful place not only to study and play but also to become part of the family.
(Catholic)
425 South Lindbergh Blvd.
St. Louis, MO 63131
(314) 692-6645
Gr: 6-12 | 800 students Student-teacher ratio: 9:1 Avg. class size: 17 students Tuition listed
Chatham Hall
Chatham Hall Photo - Chatham Hall's campus was built to promote community and collaboration.
(Episcopal)
(5)
800 Chatham Hall Circle
Chatham, VA 24531
(434) 432-5516
Gr: 9-12 | 112 students Student-teacher ratio: 8:1 Avg. class size: 8 students Tuition listed
Christchurch School
(Episcopal)
49 Seahorse Lane
Christchurch, VA 23031
(804) 542-6843
Gr: 9-12 | 255 students Student-teacher ratio: 7:1 Avg. class size: 13 students Acceptance rate: 73% Tuition listed
Collège du Léman Sàrl
Collège du Léman Sàrl Photo
(1)
Route de Sauverny 74
Geneva, Switzerland 1290
41227755656
Gr: 4-12 | Pre-K-12 (day) | 1,900 students Tuition listed
500 Holden Way
Carbondale, CO 81623
(970) 963-2562
Gr: 9-12 | 174 students Student-teacher ratio: 5:1 Avg. class size: 12 students Acceptance rate: 55% Tuition listed
Colorado Timberline Academy
Colorado Timberline Academy Photo - Fall Trip in the Slot Canyons
(4)
454 Academy Drive
Durango, CO 81301
(970) 247-5898
Gr: 9-12, PG | 40 students Student-teacher ratio: 4:1 Avg. class size: 6 students Acceptance rate: 90% Tuition listed
1003 Main Street West
Hamilton, Canada L8S 4P3
(905) 572-7883
Gr: 9-12 | 1,700 students Student-teacher ratio: 15:1 Avg. class size: 17 students Acceptance rate: 86% Tuition listed
Cotter Schools
Cotter Schools Photo
(Catholic, serving persons of all faiths)
1115 West Broadway Street
Winona, MN 55987
(507) 453-5102
Gr: 7-12 | PK-12 (day) | 450 students Student-teacher ratio: 13:1 Avg. class size: 18 students Acceptance rate: 93% Tuition listed
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