Connecticut Boarding Schools

Connecticut has 22 boarding schools serving 7,702 students. They include 16 co-ed schools, 3 all-boys schools and 3 all-girls schools.
Average tuition is $73,618, based on 22 reporting schools, 10% above the national average of $67,131.
42% of students receive financial aid, based on 20 reporting schools, against a national average of 43%.
The average class size is 11 students, based on 22 reporting schools, compared with 12 nationally.

Quick Facts (26-27)

  • # Boarding Schools: 22
  • # Students Served: 7,702
  • Average Tuition: $73,618
  • % Students on Financial Aid: 42%
  • Average Acceptance Rate: 46%
  • Average Class Size: 11 students
  • Average SAT Score: 1,266
  • % Faculty w/Advanced Degree: 68%
  • % Students Boarding: 73%
  • % International Students: 26%
  • % Students of Color: 30%

Quick Facts (26-27)

  • # Boarding Schools: 22
  • # Students Served: 7,702
  • Average Tuition: $73,618
  • % Students on Financial Aid: 42%
  • Average Acceptance Rate: 46%
  • Average Class Size: 11 students
  • Average SAT Score: 1,266
  • % Faculty w/Advanced Degree: 68%
  • % Students Boarding: 73%
  • % International Students: 26%
  • % Students of Color: 30%

Top Connecticut Boarding Schools (2026-27)

Academy of the Holy Family Photo - Ambassadors Club
Gr: 9-12 | 40 students
Student-teacher ratio: 4:1
Avg. class size: 8 students
Acceptance rate: 90%
Tuition listed
All-girls (Catholic)
54 W. Main Street Box 691
Baltic, CT 06330
(860) 822-6279
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.
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)
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.
Gr: 9-12, PG | 332 students
Student-teacher ratio: 6:1
Avg. class size: 12 students
Tuition listed
Catholic
101 Aspetuck Avenue
New Milford, CT 06776
(860) 210-3832
(1)
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 | 376 students
Student-teacher ratio: 6:1
Avg. class size: 10 students
Acceptance rate: 40%
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: 12 students
Acceptance rate: 16%
Tuition listed
333 Christian Street
Wallingford, CT 06492
(203) 697-2239
(30)
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.
Gr: 9-12, PG | 175 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)
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.
Gr: 9-12, PG | 350 students
Student-teacher ratio: 5:1
Avg. class size: 12 students
Tuition listed
99 Green Hill Road
Washington, CT 06793
(860) 868-7334
Indian Mountain School Photo - Aerial View of IMS Upper Campus
Gr: 6-9 | PK-9 (day) | 300 students
Student-teacher ratio: 4:1
Avg. class size: 12 students
Acceptance rate: 35%
Tuition listed
211 Indian Mountain Road
Lakeville, CT 06039
(435) 480-0871
Kent School Photo
Gr: 9-12, PG | 520 students
Student-teacher ratio: 5:1
Avg. class size: 11 students
Tuition listed
Episcopal
1 Macedonia Road
Kent, CT 06757
(860) 927-6111
(1)
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.
Gr: 9-12, PG | 736 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)
Marianapolis Preparatory School Photo
Gr: 9-12, PG | 300 students
Student-teacher ratio: 7:1
Avg. class size: 15 students
Tuition listed
Catholic
26 Chase Road
Thompson, CT
(860) 923-9565
(1)
Marvelwood School Photo - We offer a wide variety of competitive athletics each season.
Gr: 9-12, PG | 115 students
Student-teacher ratio: 4:1
Avg. class size: 7 students
Tuition listed
476 Skiff Mountain Road
Kent, CT 06757
(860) 927-0047
Miss Porter's School Photo
Gr: 9-12 | 345 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
(6)
Pomfret School Photo
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
(10)
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.
Gr: 5-9 | K-9 (day) | 250 students
Student-teacher ratio: 5:1
Avg. class size: 12 students
Acceptance rate: 40%
Tuition listed
P.O. Box 68 528 Pomfret Street
Pomfret, CT 06258
(860) 928-1328
(2)
Rumsey Hall School Photo
Gr: 6-9 | PK-9 (day) | 356 students
Student-teacher ratio: 6:1
Avg. class size: 12 students
Tuition listed
201 Romford Rd.
Washington, CT 06794
(860) 868-0535
St. Thomas More School Photo - Beautiful rural campus located in Eastern Connecticut - just 2.5 hours from NYC.
Gr: 8-12, PG | 195 students
Student-teacher ratio: 5:1
Avg. class size: 9 students
Acceptance rate: 69%
Tuition listed
45 Cottage Road
Oakdale, CT 06370
(860) 823-3861
Salisbury School Photo
Gr: 9-12, PG | 319 students
Student-teacher ratio: 5:1
Avg. class size: 12 students
Acceptance rate: 33%
Tuition listed
All-boys
251 Canaan Road
Salisbury, CT 06068
(860) 435-5732
(2)
South Kent School Photo
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
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.
Gr: 9-12, PG | 592 students
Student-teacher ratio: 4:1
Avg. class size: 11 students
Tuition listed
110 Woodbury Road
Watertown, CT 06795
(860) 945-7700
(3)
Westminster School Photo - Gund Reading Room in the Cole Library, a stunning place to study, meet and hold events.
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)
Westover School Photo
Gr: 9-12, PG | 192 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)

Historical Statistics Overview

This State (CT)
US (avg. per state)
# Schools
23 Schools
6.5 Schools

Showing 2016–2025. View full 21-year historical data

# Students
7,889 Students
2,532 Students

Showing 2016–2025. View full 21-year historical data

Academics and Faculty

This State (CT)
US
Average Student-Teacher Ratio
5:1
8:1

Showing 2016–2025. View full 21-year historical data

% Faculty with Advanced Degree
69%
69%

Showing 2016–2025. View full 21-year historical data

Academic Programs

This State (CT)*
US
* Fewer than 3 schools in Connecticut report Avg. IB Courses, so the Northeast regional average is shown for that row.
Avg. AP/Advanced Courses
25
21

Showing 2016–2025. View full 21-year historical data

Avg. IB Courses
23
28

Showing 2016–2025. View full 14-year historical data

Avg. Class Size
11
13

Showing 2016–2025. View full 21-year historical data

Academic Performance

This State (CT)
US
Avg. SAT Score
1256
1268
Avg. ACT Score
28
27

Showing 2016–2025. View full 18-year historical data

Avg. Acceptance Rate
46%
58%

Showing 2016–2025. View full 21-year historical data

Tuition and Finances

This State (CT)
US
Avg. Tuition (Boarding)
$71,454
$64,659

Showing 2016–2025. View full 21-year historical data

Avg. Tuition (Day)
$48,106
$38,029

Showing 2016–2025. View full 21-year historical data

Avg. Tuition (International)
$61,496
$62,844

Showing 2016–2025. View full 17-year historical data

Avg. Financial Aid Rate
43%
42%

Showing 2016–2025. View full 21-year historical data

Avg. Financial Aid Grant
$34,290
$27,222

Showing 2016–2025. View full 21-year historical data

Avg. Endowment
$97 MM
$84 MM

Showing 2016–2025. View full 21-year historical data

Student Diversity

This State (CT)
US
% Students of Color
28%
30%

Showing 2016–2025. View full 21-year historical data

% International Students
26%
27%

Showing 2016–2025. View full 21-year historical data

% Boarding Students
72%
59%

Showing 2016–2025. View full 21-year historical data

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Frequently Asked Questions

How many boarding schools are located in Connecticut?
There are 22 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 $73,618 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?

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