J. Addison School was founded in 2002 to serve both local and international students.
The facilities are modern and extensive, including in-campus boarding and support programs designed with the needs of international students specifically in mind. The ideal student is one who will thrive in a challenging, academically oriented, international environment, and who is intending to continue to post-secondary education in Canada.
Quick Stats (2025)
- Grades: (51³Ô¹ÏÍø Students) 7-12
- Grades: (Day Students) 1-12
- Enrollment: 250 students
- Yearly Tuition (51³Ô¹ÏÍø Students): $22,500
- Yearly Tuition (Day Students): $28,575
- Acceptance rate: 100%
- Average class size: 15 students
- Application Deadline: None / Rolling
- Source: Verified school update
School News
- - 06/10/2025At J. Addison School, students do more than just study-they grow, connect, and prepare for life. Located in the heart of Markham, Ontario, our school welcomes students from around the ...moreworld, offering a vibrant, inclusive, and academically focused environment from Grades 1 to 12. Whether local or international, every student benefits from a personalized approach that supports academic success and character development. hide
- - 04/30/2025At J. Addison School, our commitment to nurturing young minds goes beyond textbooks. We are so proud of Johan W., a Grade 11 student who recently showcased an A.I.-powered Intelligent ...moreHeliostat-a solar tracking device-during Markham's Earth Day celebration at the Milliken Mills Library. hide
- - 12/17/2024At some schools, character-building is an afterthought. At J. Addison School, it's a guiding educational principle that shapes confident, well-rounded global citizens.
- - 11/01/2024At J Addison School, we continuously seek opportunities to enrich our students' experience through diverse activities. This past month, we had the privilege of hosting two remarkable international events that ...moreconnected our students with peers and athletes from around the world, fostering global engagement and cultural exchange. hide
Top Rankings
J. Addison School ranks among the top 20 boarding schools (out of 280 schools) for:
Category
Attribute
Affordability
School Overview
Definition of Terms | 2024 School Data
J. Addison School
School Focus
College Preparatory
Grades Offered (51³Ô¹ÏÍø)
7-12
Grades Offered (Day)
1-12
School Type
Co-ed
Religious Affiliation
Year Founded
2002
Campus Size
3 acres
Student Body
Enrollment
250 students
% Students of Color
50%
% International Students
75%
% Students 51³Ô¹ÏÍø
70%
Offers Post-Grad Year
No
Academics and Faculty
Saturday Classes
No
Classroom Dress Code
Formal
Uniform
Uniform
Average Class Size
15 students
Student : Teacher Ratio
15:1
# of AP / Advanced Courses Offered
8
ESL Courses Offered
% Faculty with Advanced Degree
22%
Summer Program Offered
Summer Program Details
Tuition Cost
Yearly Tuition
(51³Ô¹ÏÍø Students)
(51³Ô¹ÏÍø Students)
$22,500
(excluding additional fees)
(excluding additional fees)
Yearly Tuition
(Day Students)
(Day Students)
$28,575
(Grade dependent; excluding additional fees)
(Grade dependent; excluding additional fees)
Merit Scholarships Offered
Admissions
Application Deadline
None / Rolling
Acceptance Rate
100%
Director of Admissions
Daniel Cooper
Lee Venditti
Lee Venditti
Associate Director of Admissions
Teresa Vallejo
Application URL
AP / Advanced Courses
# of AP / Advanced Courses Offered
8
Courses
Biology, Calculus, Chemistry, Computer Science, Economics, English, Physics, World History
Sports
# Interscholastic Sports Offered
5
Sports
Extracurriculars
Total Extracurricular Organizations
13
Extracurriculars
Club or Organization:
"Project X" service opportunities, Board Game Club, Creative Writing Magazine, Enviro-thon, Mathematics Club, Meteorology Club at Taft (MCAT), Science, Student Council
Arts and Music Programs:
Music, Speech and Drama
Recreational Athletic Programs:
House vs. House Sports Competitions, Sports, Vocal and Instrumental
"Project X" service opportunities, Board Game Club, Creative Writing Magazine, Enviro-thon, Mathematics Club, Meteorology Club at Taft (MCAT), Science, Student Council
Arts and Music Programs:
Music, Speech and Drama
Recreational Athletic Programs:
House vs. House Sports Competitions, Sports, Vocal and Instrumental
College Matriculation
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
- School Motto: Our Students’ Success Is Our Success 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.
- J. Addison School accreditations: York University Partnership, Wilfrid Laurier University Partnership, York Region Athletics Association
- Sample of notable school alumni/alumnae:
- Ibrahima from Guinea -
- Ava from Iran -
- Janice from Hong Kong SAR, China -
- Ravjeet from Canada -
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 $28,575 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: Ibrahima from Guinea, Ava from Iran, Janice from Hong Kong SAR, China and Ravjeet from Canada.
What sports does J. Addison School offer?
J. Addison School offers 5 interscholastic sports: Badminton, Basketball, Soccer, Track and Field and Volleyball.
Does J. Addison School offer a summer program?
Yes, J. Addison School offers a summer program. Visit their 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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