J. Addison School is an independent day and boarding school in Markham, Ontario, serving students from K12 in purpose-built, privately owned facilities with on-campus residences.
Grounded in the Ontario Curriculum and enriched with inquiry-based, hands-on learning, the Elementary program blends methodologies to meet diverse learning styles, while the Secondary program prepares students for post-secondary success.
J. Addison is known for strong character development, a supportive community, and a 100 % university acceptance rate, with graduates recognized for their readiness, maturity, and adaptability in post-secondary pathways.
The ideal student for J. Addison School is one who will thrive in a challenging, academically oriented, multicultural environment.
Quick Facts (26-27)
- Grades: (Boarding Students) 7-12
- Grades: (Day Students) K-12
- Enrollment: 150 students
- Yearly Tuition (Boarding Students): $22,500
- Yearly Tuition (Day Students): $25,500
- Acceptance rate: 100%
- Average class size: 15 students
- Application Deadline: None / Rolling
- Source: Verified school update
Top Rankings
J. Addison School ranks among the top 20 boarding schools (out of 272 schools) for:
Category
Attribute
Affordability
School Overview
Definition of Terms | 2026 School Data
J. Addison School
School Focus
College Preparatory
Grades Offered (Boarding)
7-12
Grades Offered (Day)
K-12
School Type
Co-ed
Religious Affiliation
Year Founded
2002
Campus Size
3 acres
School Motto
Respect, Kindness and Manner
Student Body
Enrollment
150 students
% Students of Color
20%
% International Students
60%
% Students Boarding
40%
Offers Post-Grad Year
No
Academic Profile
Saturday Classes
No
Classroom Dress Code
Formal
Uniform
Uniform
Average Class Size
15 students
Student-Teacher Ratio
15:1
ESL Courses Offered
% Faculty with Advanced Degree
25%
Summer Program Offered
Summer Program Details
# of AP / Advanced Courses Offered
8
Courses
BiologyCalculus
ChemistryComputer Science
EconomicsEnglish
PhysicsWorld History
Tuition & Financial Aid
Yearly Tuition
(Boarding Students)
(Boarding Students)
$22,500
(excluding additional fees)
(excluding additional fees)
Yearly Tuition
(Day Students)
(Day Students)
$25,500
(Grade dependent; excluding additional fees)
(Grade dependent; excluding additional fees)
Summer Program Cost
$4,995
(3 Weeks Summer Boarding Camp)
(3 Weeks Summer Boarding Camp)
Merit Scholarships Offered
Admissions
Application Deadline
None / Rolling
Average Percentile SSAT
n/a%
Acceptance Rate
100%
Director of Admissions
Luyen Hoang
Associate Director of Admissions
Teresa Vallejo
Application URL
Sports
# Interscholastic Sports Offered
6
Colors
Gold and Royal Blue
School Mascot
Jaguar
Extracurriculars
Total Extracurricular Organizations
13
Extracurriculars
Club or Organization:
Arts and Music Programs:
Recreational Athletic Programs:
"Project X" service opportunitiesBoard Game Club
Creative Writing MagazineEnviro-thon
Mathematics ClubMeteorology Club at Taft (MCAT)
ScienceStudent Council
Arts and Music Programs:
MusicSpeech and Drama
Recreational Athletic Programs:
House vs. House Sports CompetitionsSports
Vocal and Instrumental
College Matriculation
College Acceptance Rate
100%
Year: 2023 - 2024
10 Most Popular College Choices (# Enrolled)
University of Toronto
32
York University
15
Toronto Metropolitan University
10
University of Waterloo
10
Seneca College
8
George Brown College
5
McMaster University
5
University of Waterloo
5
Western University
5
Wilfrid Laurier University
5
School Notes
-
J. Addison School follows the Ontario curriculum, providing a challenging academic environment. Our Secondary Program prepares students for higher education and future success. An average 1:15 teacher-student ratio at J Addison School ensures personalized attention, tailored instruction and encourages student engagement. This ratio provides a supportive learning environment, enabling teachers to identify and address individual needs, improving academic outcomes and student well-being. It also facilitates stronger relationships, promoting a sense of community and belonging among students.
- J. Addison School has a 100% placement rate for graduates pursuing post-secondary education. Our students are regularly accepted into prestigious universities in Canada and around the world.
- Our school runs a multi-subject instructional period called Focus for Success. The program is a unique learning period and provides J. Addison students with the opportunity to access many resources and services to enhance their understanding and learning. They are able to work on group projects, receive assistance from teachers or take part in a wide range of extra-curricular sports or co-curricular activities that support healthy social, emotional, and physical development.
- Our boarding program is designed to provide a "home away from home" for students in Grades 7-12. With residence halls offering comfortable and secure living arrangements, students are encouraged to grow independently while receiving personal and academic support from our dedicated residence counsellors. This program not only fosters academic excellence but also promotes the social, emotional, and physical well-being of students through various activities and leadership opportunities.
- Sample of notable school alumni/alumnae:
- Leah A. '26 - Class of 2026 Valedictorian / York University Business Administration
- Sarkis C. '26 - Class of 2026 Residence Life Valedictorian / McGill University Architecture
- Sienna P.T. '26 - Class 2026 Co-Valedictorian University of Vermont Scholarship Recipient
- Daniel L.'26 - Class '26 Livingstone College Scholarship Recipient
Source: Verified school update
Frequently Asked Questions
How much does J. Addison School cost?
J. Addison School's tuition is approximately $22,500 for boarding students and $25,500 for day students.
What is the acceptance rate of J. Addison School?
The acceptance rate of J. Addison School is 100%, which is higher than the boarding school average of 64%.
Who are famous alumni from J. Addison School?
J. Addison School famous alumni include: Leah A. '26, Sarkis C. '26, Sienna P.T. '26 and Daniel L.'26.
What sports does J. Addison School offer?
J. Addison School offers 6 interscholastic sports: Badminton, Basketball, Cross Country Running, Soccer, Track and Field and Volleyball.
Does J. Addison School offer a summer program?
Yes, J. Addison School offers a summer program. Visit their summer school page for more information.
What is J. Addison School's ranking?
J. Addison School ranks among the top 20 boarding schools for High percentage of international students and Least expensive tuition.
When is the application deadline for J. Addison School?
The application deadline for J. Addison School is rolling (applications are reviewed as they are received year-round).
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People that viewed J. Addison School also viewed these schools: Bronte College, Ashbury College, Bodwell High School, Brentwood College School and Ridley College.
The nearest boarding school to J. Addison School is Branksome Hall (12.6 miles away)
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(416) 920-9741
Toronto, Canada m4w 1n4
(416) 920-9741
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