Catholic secondary · Mississauga
St. Paul Catholic Secondary School
Use this Mississauga school guide to check the essentials: Grades 9–12, English and the school’s official enrolment information. Keep your child’s needs and the exact home address at the centre of the decision.
- Grades
- Grades 9–12
- Teaching language
- English
- School board
- Dufferin-Peel Catholic District School Board
- Address
- 815 Atwater Avenue, Mississauga, ON L5E 1L8
- Municipality
- Mississauga
School-specific context
St. Paul is a Catholic secondary school on Atwater Avenue in Mississauga, serving Grades 9–12. It offers an International Baccalaureate pathway, with preparatory study in Grades 9–10 followed by the Diploma Programme in Grades 11–12. Families should review its separate IB application alongside ordinary school registration.
IB progression
The school describes preparatory learning in Grades 9–10 and the full Diploma Programme in Grades 11–12, including extended research, theory of knowledge and service-related learning.
Choosing a pathway
The school has separate IB registration information and fees. The board also lists a 2026–27 Health and Wellness SHSM option; confirm eligibility and course choices with the school.
BEFORE YOU CHOOSE A HOME
Check the address.
Confirm the program.
A nearby home or a shared municipality does not guarantee a place. Ask the board about attendance boundaries and the school about any separate entry requirements.
Considering a home in Mississauga?
Explore the municipality once you have checked the school’s entry rules. These searches do not establish distance, school boundaries, transportation or admission.
Official sources and check dates
- Official school and board information Source checked Oct 3, 2026
- Ontario Ministry of Education school profile Source checked Oct 3, 2026
- Official school and board information Source checked Oct 3, 2026
- Official school and board information Source checked Oct 3, 2026
- Official school and board information Source checked Oct 3, 2026
- Official school and board information Source checked Oct 3, 2026
- Fraser Institute 2025 report — 2023/2024 results Source checked Oct 3, 2026
These guides use AI-assisted research and dated public source records. A source check is not a school visit or a personal assessment. For a correction, choose a team member to contact.