Boarding School Review - Established 2003
Choate Rosemary Hall
Marianapolis Preparatory School
South Kent School

Best Connecticut Boarding Schools (2026)

For the 2026 school year, there are 23 college-prep and junior boarding schools serving 7,753 students located throughout Connecticut.
You can also browse our full boarding school directory or specify additional search criteria.

Quick Facts (2026)

  • # Boarding Schools: 23
  • # Students Served: 7,753
  • Average Tuition: $70,444
  • Average Acceptance Rate: 50%
  • Average Class Size: 11 students
  • % Students Boarding: 72%
  • % International Students: 25%
  • % Students of Color: 28%
  • % Students on Financial Aid: 43%
  • Average SAT Score: 1,257
  • % Faculty w/Advanced Degree: 67%
Choate Rosemary Hall
Marianapolis Preparatory School
South Kent School
Pomfret School
St. Thomas More School
Forman School
Salisbury School
Rumsey Hall School
Indian Mountain School
The Taft School
Marvelwood School
Canterbury School
Loomis Chaffee
The Ethel Walker School
Kent School
Avon Old Farms School
Westminster School
Cheshire Academy
Academy of the Holy Family
Westover School

Quick Facts (2026)

  • # Boarding Schools: 23
  • # Students Served: 7,753
  • Average Tuition: $70,444
  • Average Acceptance Rate: 50%
  • Average Class Size: 11 students
  • % Students Boarding: 72%
  • % International Students: 25%
  • % Students of Color: 28%
  • % Students on Financial Aid: 43%
  • Average SAT Score: 1,257
  • % Faculty w/Advanced Degree: 67%

Top Connecticut Boarding Schools (2026)

Academy of the Holy Family Photo - Ambassadors Club
Academy of the Holy Family
Gr: 9-12 | 40 students
Student-teacher ratio: 4:1
Avg. class size: 8 students
Acceptance rate: 90%
Tuition listed
All-girls (Roman Catholic)
54 W. Main Street Box 691
Baltic, CT 06330
(860) 822-6279
View Profile
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.
Avon Old Farms School
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)
View Profile
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.
Canterbury School
Gr: 9-12, PG | 332 students
Student-teacher ratio: 6:1
Avg. class size: 12 students
Tuition listed
Catholic heritage
101 Aspetuck Avenue
New Milford, CT 06776
(860) 210-3832
(1)
View Profile
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.
Cheshire Academy
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)
View Profile
Choate Rosemary Hall Photo
Choate Rosemary Hall
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)
View Profile
The Ethel Walker School Photo
The Ethel Walker School
Gr: 7-12, PG | 6-12, PG (day) | 226 students
Student-teacher ratio: 7:1
Avg. class size: 12 students
Acceptance rate: 47%
Tuition listed
All-girls
230 Bushy Hill Road
Simsbury, CT 06070
(860) 408-4200
View Profile
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.
Forman School
Gr: 9-12, PG | 210 students
Student-teacher ratio: 4:1
Avg. class size: 8 students
Acceptance rate: 80%
Tuition listed
12 Norfolk Road, P.O. Box 80
Litchfield, CT 06759
(860) 567-1802
(6)
View Profile
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.
The Frederick Gunn School
Gr: 9-12, PG | 330 students
Student-teacher ratio: 5:1
Avg. class size: 12 students
Tuition listed
99 Green Hill Road
Washington, CT 06793
(860) 868-7334
View Profile
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.
Indian Mountain School
Gr: 5-9 | PK-9 (day) | 300 students
Student-teacher ratio: 4:1
Avg. class size: 12 students
Acceptance rate: 40%
Tuition listed
211 Indian Mountain Road
Lakeville, CT 06039
(435) 480-0871
View Profile
Kent School Photo
Kent School
Gr: 9-12, PG | 520 students
Student-teacher ratio: 5:1
Avg. class size: 11 students
Tuition listed
Episcopalian
1 Macedonia Road
Kent, CT 06757
(860) 927-6111
View Profile
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.
Loomis Chaffee
Gr: 9-12, PG | 748 students
Student-teacher ratio: 4:1
Avg. class size: 11 students
Acceptance rate: 18%
Tuition listed
4 Batchelder Road
Windsor, CT 06095
(860) 687-6400
(30)
View Profile
Marianapolis Preparatory School Photo
Marianapolis Preparatory School
Gr: 9-12, PG | 213 students
Student-teacher ratio: 8:1
Avg. class size: 13 students
Tuition listed
Catholic
26 Chase Road
Thompson, CT
(860) 923-9565
View Profile
Marvelwood School Photo - We offer a wide variety of competitive athletics each season.
Marvelwood School
Gr: 9-12, PG | 120 students
Student-teacher ratio: 3:1
Avg. class size: 7 students
Acceptance rate: 80%
Tuition listed
476 Skiff Mountain Road
Kent, CT 06757
(860) 927-0047
(1)
View Profile
Miss Porter's School Photo
Miss Porter's School
Gr: 9-12 | 347 students
Student-teacher ratio: 6:1
Avg. class size: 12 students
Acceptance rate: 40%
Tuition listed
All-girls
60 Main Street
Farmington, CT 06032
(860) 409-3530
(5)
View Profile
Pomfret School Photo
Pomfret School
Gr: 9-12, PG | 350 students
Student-teacher ratio: 6:1
Avg. class size: 10 students
Tuition listed
PO Box 128, 398 Pomfret Street
Pomfret, CT 06258
(860) 963-6120
(8)
View Profile
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
Gr: 5-9 | PK-9 (day) | 250 students
Student-teacher ratio: 4:1
Avg. class size: 10 students
Tuition listed
P.O. Box 68 528 Pomfret Street
Pomfret, CT 06258
(860) 928-1328
(2)
View Profile
Rumsey Hall School Photo - Rumsey Hall School campus.
Rumsey Hall School
Gr: 5-9 | PK-9 (day) | 328 students
Student-teacher ratio: 5:1
Avg. class size: 12 students
Acceptance rate: 80%
Tuition listed
201 Romford Rd.
Washington, CT 06794
(860) 868-0535
View Profile
St. Thomas More School Photo - Beautiful rural campus located in Eastern Connecticut - just 2.5 hours from NYC.
St. Thomas More School
Gr: 8-12, PG | 175 students
Student-teacher ratio: 5:1
Avg. class size: 8 students
Acceptance rate: 69%
Tuition listed
45 Cottage Road
Oakdale, CT 06370
(860) 823-3861
View Profile
Salisbury School Photo
Salisbury School
Gr: 9-12, PG | 319 students
Student-teacher ratio: 5:1
Avg. class size: 12 students
Acceptance rate: 33%
Tuition listed
All-boys (Episcopalian)
251 Canaan Road
Salisbury, CT 06068
(860) 435-5732
(2)
View Profile
South Kent School Photo
South Kent School
Gr: 9-12, PG | 170 students
Student-teacher ratio: 8:1
Avg. class size: 12 students
Tuition listed
All-boys (Episcopal)
40 Bulls Bridge Rd
South Kent, CT 06785
(860) 927-3539
View Profile
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.
The Taft School
Gr: 9-12, PG | 583 students
Student-teacher ratio: 5:1
Avg. class size: 11 students
Acceptance rate: 19%
Tuition listed
110 Woodbury Road
Watertown, CT 06795
(860) 945-7700
(3)
View Profile
Westminster School Photo - Gund Reading Room in the Cole Library, a stunning place to study, meet and hold events.
Westminster School
Gr: 9-12, PG | 425 students
Student-teacher ratio: 5:1
Avg. class size: 12 students
Acceptance rate: 33%
Tuition listed
995 Hopmeadow Street
Simsbury, CT 06070
(860) 408-3060
(10)
View Profile
Westover School Photo
Westover School
Gr: 9-12 | 160 students
Student-teacher ratio: 4:1
Avg. class size: 12 students
Acceptance rate: 65%
Tuition listed
All-girls
1237 Whittemore Rd.
Middlebury, CT 06762
(203) 577-4521
(12)
View Profile

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 $70,444 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?
Westover School has the highest average SAT scores (1410) in Connecticut.
Which boarding schools in Connecticut are often viewed compared to one another?
Popular comparisons of boarding schools in Connecticut include: The Taft School vs. Choate Rosemary Hall, Loomis Chaffee vs. Choate Rosemary Hall, Salisbury School vs. Avon Old Farms School

Recent Articles

When a Boarding School Scholarship Comes With Conditions: Questions to Ask Before Accepting
When a Boarding School Scholarship Comes With Conditions: Questions to Ask Before Accepting
Learn what boarding school scholarship conditions mean, how renewal requirements work, and the questions every family should ask before accepting an award.
The Boarding School Net Price Test: What to Compare After Financial Aid Offers Arrive
The Boarding School Net Price Test: What to Compare After Financial Aid Offers Arrive
Learn how to compare boarding school financial aid offers, calculate true net cost, and identify hidden expenses before making your enrollment decision.
Building Your Boarding School Shortlist: A Data-Driven Approach
Building Your Boarding School Shortlist: A Data-Driven Approach
Learn how to compare boarding schools using a data-driven approach that helps families build a smarter, more personalized shortlist.

Featured Schools

Filter Schools

Boarding / Day
Gender
School Focus
School Size
Junior Boarding
Scholarship
Religious Affiliation

Featured Schools

Quick Links

Find:
Search:
Use:
View:

Most Popular Articles

Boarding School Myths
Boarding School Myths
 School Rankings by Category
School Rankings by Category
10 Top Reasons to Go to Boarding School
10 Top Reasons to Go to Boarding School
 Boarding School Scholarships & Financial Aid Guide 2025
Boarding School Scholarships & Financial Aid Guide 2025
 Free Boarding Schools
Free Boarding Schools

More Articles

Financing
Jobs in Boarding Schools
Archive
Why Boarding School
Admissions