Boarding School Review - Established 2003
Rectory School Photo - Being a member of a large, close-knit community lends itself to increased leadership skills, empathy, and understanding of one's self and those around them.
Rectory School

Best Connecticut Boarding Schools (2025-26)

For the 2025-26 school year, there are 23 college-prep and junior boarding schools serving 7,890 students located throughout Connecticut.
You can also browse our full boarding school directory or specify additional search criteria.

Top Connecticut Boarding Schools (2025-26)

School
Location
Quick Facts
Academy of the Holy Family
Academy of the Holy Family Photo - Ambassadors Club
(Catholic)
54 W. Main Street Box 691
Baltic, CT 06330
(860) 822-6279
Gr: 9-12 | 40 students Student-teacher ratio: 4:1 Avg. class size: 8 students Acceptance rate: 90% Tuition listed
Avon Old Farms School
Avon Old Farms School Photo - Nestled among Cotswold-inspired architecture on 860 acres in the Farmington Valley, Avon Old Farms stands as the leader in preparing boys to become men.
(6)
500 Old Farms Road
Avon, CT 06001
(800) 464-2866
Gr: 9-12, PG | 405 students Student-teacher ratio: 6:1 Avg. class size: 12 students Acceptance rate: 45% Tuition listed
Canterbury School
Canterbury School Photo - At Canterbury School, a balanced educational experience integrates academic achievement, personal growth, and community engagement. As a welcoming interfaith community, Canterbury fosters a sense of belonging, providing passionate educators and transformative opportunities that guide you toward your fullest potential. This is what makes Canterbury School more than just a place to learn-it's a place to become your best self.
(Catholic)
(1)
101 Aspetuck Avenue
New Milford, CT 06776
(860) 210-3832
Gr: 9-12, PG | 332 students Student-teacher ratio: 6:1 Avg. class size: 12 students Tuition listed
Cheshire Academy
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.
(5)
10 Main Street
Cheshire, CT 06410
(203) 439-7250
Gr: 9-12, PG | 343 students Student-teacher ratio: 6:1 Avg. class size: 10 students Acceptance rate: 45% Tuition listed
Choate Rosemary Hall
Choate Rosemary Hall Photo
(30)
333 Christian Street
Wallingford, CT 06492
(203) 697-2239
Gr: 9-12, PG | 860 students Student-teacher ratio: 6:1 Avg. class size: 12 students Acceptance rate: 16% Tuition listed
The Ethel Walker School
The Ethel Walker School Photo
230 Bushy Hill Road
Simsbury, CT 06070
(860) 408-4200
Gr: 7-12, PG | 226 students Student-teacher ratio: 6:1 Avg. class size: 12 students Acceptance rate: 47% Tuition listed
Forman School
Forman School Photo - The Forman Green is at the center of campus life. Surrounded by dorms and faculty homes, it reflects the traditional charm of an historic New England community.
(6)
12 Norfolk Road, P.O. Box 80
Litchfield, CT 06759
(860) 567-1802
Gr: 9-12, PG | 210 students Student-teacher ratio: 4:1 Avg. class size: 8 students Acceptance rate: 80% Tuition listed
The Frederick Gunn School
The Frederick Gunn School Photo - The Frederick Gunn School, founded in 1850, is a co-ed boarding and day school for 315 students in grades 9-12 as well as a post-graduate year located in Washington, Connecticut.
99 Green Hill Road
Washington, CT 06793
(860) 868-7334
Gr: 9-12, PG | 330 students Student-teacher ratio: 5:1 Avg. class size: 12 students Tuition listed
Indian Mountain School
Indian Mountain School Photo - As one of the most popular spring sports at IMS, the varsity boys and girls programs have sent athletes to compete at the highest levels of high school and college.
211 Indian Mountain Road
Lakeville, CT 06039
(435) 480-0871
Gr: 5-9 | PK-9 (day) | 300 students Student-teacher ratio: 4:1 Avg. class size: 12 students Acceptance rate: 40% Tuition listed
Kent School
Kent School Photo
(Episcopal)
1 Macedonia Road
Kent, CT 06757
(860) 927-6111
Gr: 9-12, PG | 520 students Student-teacher ratio: 5:1 Avg. class size: 11 students Tuition listed
Loomis Chaffee
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.
(30)
4 Batchelder Road
Windsor, CT 06095
(860) 687-6400
Gr: 9-12, PG | 736 students Student-teacher ratio: 4:1 Avg. class size: 11 students Acceptance rate: 18% Tuition listed
Marianapolis Preparatory School
Marianapolis Preparatory School Photo
(Catholic)
26 Chase Road
Thompson, CT
(860) 923-9565
Gr: 9-12, PG | 300 students Student-teacher ratio: 7:1 Avg. class size: 15 students Tuition listed
Marvelwood School
Marvelwood School Photo - We offer a wide variety of competitive athletics each season.
476 Skiff Mountain Road
Kent, CT 06757
(860) 927-0047
Gr: 9-12, PG | 115 students Student-teacher ratio: 4:1 Avg. class size: 7 students Tuition listed
Miss Porter's School
Miss Porter's School Photo
(6)
60 Main Street
Farmington, CT 06032
(860) 409-3530
Gr: 9-12 | 345 students Student-teacher ratio: 6:1 Avg. class size: 12 students Acceptance rate: 40% Tuition listed
Pomfret School
Pomfret School Photo
(10)
PO Box 128, 398 Pomfret Street
Pomfret, CT 06258
(860) 963-6120
Gr: 9-12, PG | 350 students Student-teacher ratio: 6:1 Avg. class size: 10 students Tuition listed
Rectory School
Rectory School Photo - Being a member of a large, close-knit community lends itself to increased leadership skills, empathy, and understanding of one's self and those around them.
(2)
P.O. Box 68 528 Pomfret Street
Pomfret, CT 06258
(860) 928-1328
Gr: 5-9 | PK-9 (day) | 250 students Student-teacher ratio: 4:1 Avg. class size: 10 students Tuition listed
Rumsey Hall School
Rumsey Hall School Photo - Rumsey Hall School campus.
201 Romford Rd.
Washington, CT 06794
(860) 868-0535
Gr: 6-9 | PK-9 (day) | 338 students Student-teacher ratio: 5:1 Avg. class size: 12 students Tuition listed
St. Thomas More School
St. Thomas More School Photo - Beautiful rural campus located in Eastern Connecticut - just 2.5 hours from NYC.
45 Cottage Road
Oakdale, CT 06370
(860) 823-3861
Gr: 8-12, PG | 175 students Student-teacher ratio: 5:1 Avg. class size: 9 students Acceptance rate: 69% Tuition listed
Salisbury School
Salisbury School Photo
(2)
251 Canaan Road
Salisbury, CT 06068
(860) 435-5732
Gr: 9-12, PG | 319 students Student-teacher ratio: 5:1 Avg. class size: 12 students Acceptance rate: 33% Tuition listed
South Kent School
South Kent School Photo
(Episcopal)
40 Bulls Bridge Rd
South Kent, CT 06785
(860) 927-3539
Gr: 9-12, PG | 170 students Student-teacher ratio: 8:1 Avg. class size: 12 students Tuition listed
The Taft School
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.
(3)
110 Woodbury Road
Watertown, CT 06795
(860) 945-7700
Gr: 9-12, PG | 609 students Student-teacher ratio: 5:1 Avg. class size: 11 students Acceptance rate: 19% Tuition listed
Westminster School
Westminster School Photo - Gund Reading Room in the Cole Library, a stunning place to study, meet and hold events.
(10)
995 Hopmeadow Street
Simsbury, CT 06070
(860) 408-3060
Gr: 9-12, PG | 425 students Student-teacher ratio: 5:1 Avg. class size: 12 students Acceptance rate: 33% Tuition listed
Westover School
Westover School Photo
(12)
1237 Whittemore Rd.
Middlebury, CT 06762
(203) 577-4521
Gr: 9-12, PG | 192 students Student-teacher ratio: 4:1 Avg. class size: 12 students Acceptance rate: 65% Tuition listed

Frequently Asked Questions

How many boarding schools are located in Connecticut?
There are 23 college-preparatory boarding schools located in Connecticut.
What is the average tuition cost of boarding school in Connecticut?
The average Connecticut boarding school tuition cost is $71,454 per year.
What is the oldest boarding school in Connecticut?
Cheshire Academy, founded in 1794, is the oldest boarding school in Connecticut.
What boarding school in Connecticut has the lowest acceptance rates?
Choate Rosemary Hall has the lowest boarding school acceptance rate (16%) in Connecticut.
What boarding school in Connecticut has the highest average SAT scores?
Choate Rosemary Hall has the highest average SAT scores (1401) in Connecticut.
Which boarding schools in Connecticut are often viewed compared to one another?
Popular comparisons of boarding schools in Connecticut include: Rumsey Hall School vs. Rectory School, Indian Mountain School vs. Rectory School, The Taft School vs. Choate Rosemary Hall

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