At TCS, our 100-acre campus and state-of-the-art facilities provide enriching spaces for our students to realize all that's possible.
Students can discover new areas for growth and focus on (Personal interests or) meaningful pursuits across our connective academics, arts, athletics and Service Learning programs.
Day (Grade 5-12) and boarding (Grade 9-12) families alike realize that our campus is 100 acres of home, where our students quickly become a close-knit, extended family.
Students in our care are surrounded by dedicated teachers, advisors, coaches and house staff to provide the right amount of challenge and encouragement along the way.
We believe that healthy habits and universal values developed now go a long way in developing confident and caring global citizens who are ready to make a positive impact wherever their journey takes them.
Graduates develop that rare confidence that comes from knowing that they have been deeply understood and they start truly valuing themselves as well as others.
Quick Facts (2026)
- Grades: (Boarding Students) 9-12
- Grades: (Day Students) 5-12
- Enrollment: 578 students
- Yearly Tuition (Boarding Students): $59,750
- Average class size: 15 students
- Application Deadline: None / Rolling
- Source: Verified school update
Top Rankings
Trinity College School ranks among the top 10 schools with > 400 students (out of 102 schools) for:
Category
Attribute
School Overview
Definition of Terms | 2025 School Data
Trinity College School
School Focus
College Preparatory
Grades Offered (Boarding)
9-12
Grades Offered (Day)
5-12
School Type
Co-ed
ADD/ADHD Support
Supports Learning Differences (LD)
Religious Affiliation
Year Founded
1865
Campus Size
100 acres
Colors
White, Black, Maroon
Student Body
Enrollment
578 students
% International Students
30%
% Students Boarding
60%
Offers Post-Grad Year
No
Academics and Faculty
Saturday Classes
No
Classroom Dress Code
Average Class Size
15 students
Student-Teacher Ratio
7:1
# of AP / Advanced Courses Offered
19
ESL Courses Offered
Summer Program Offered
Summer Program Details
Tuition Cost
Endowment Size
$53 million
Yearly Tuition
(Boarding Students)
(Boarding Students)
$59,750
Tuition international students
$68,500
% Students on Financial Aid
30%
Avg. Financial Aid Grant
$20,000
Merit Scholarships Offered
No
Admissions
Application Deadline
None / Rolling
Director of Admissions
Kathy LaBranche
Associate Director of Admissions
Jon Holmes
Application URL
College Matriculation
10 Most Popular College Choices (# Enrolled)
School Notes
- At Trinity College School, each student is valued for what they uniquely bring to the community because individuality matters here. TCS attracts motivated students locally, nationally, and internationally because we respect each person as we do their cultures. Day (Grade 5-12) and boarding (Grade 9-12) families alike realize that our campus is 100 acres of home, where our students quickly become a close-knit, extended family.
- Our students are surrounded by mentors, advisors, coaches and house staff who only want the best for them and support them on their personal path. Our faculty work with each student, using the right amount of challenge and encouragement to help each student realize what's possible because at TCS students achieve great things when they feel supported.
- TCS offers an impressive breadth and depth of academic courses and electives, so you can discover new interests and go deeper into the ones you love. Our educators are experts in their fields, who care about your development and will inspire you to realize all that's possible. Our academic program, modelled on a liberal arts philosophy, is collaborative, rich in discussion and writing-intensive. With over 120 courses offered, students can explore new pathways and concentrate studies in areas of personal interest. In Grades 9 and 10, students participate equally in arts and sciences, while those in Grades 11 and 12 begin to specialize as they plan for university, and many take options from our 17+ Advanced Placement (AP) courses.
- Trinity College School accreditations: TABS, CAIS, CIS
- Sample of notable school alumni/alumnae:
- David McCart '67 - Participated in the golf tournament held by the school. -
- School Mascot: Trina The Polar Bear
Source: Verified school update
Frequently Asked Questions
How much does Trinity College School cost?
Trinity College School's tuition is approximately $59,750 for boarding students.
Who are famous alumni from Trinity College School?
Trinity College School famous alumni include: David McCart '67 - Participated in the golf tournament held by the school..
Does Trinity College School offer a summer program?
Yes, Trinity College School offers a summer program. Visit their summer school page for more information.
What is Trinity College School's ranking?
Trinity College School ranks among the top 20 boarding schools for High percentage of international students.
When is the application deadline for Trinity College School?
The application deadline for Trinity College School is rolling (applications are reviewed as they are received year-round).
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