Catholic secondary · Markham

St. Robert Catholic High School

Use this Markham 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.

Official school website Check enrolment & boundaries

School campus photographed in August 2024. Original image. Nath87 / Wikimedia Commons · CC0 · August 2024. Image source · CC0

Grades: Grades 9–12
Teaching language: English
School board: York Catholic District School Board
Address: 8101 Leslie St., Thornhill L3T 7P4
Municipality: Markham

School-specific context

St. Robert Catholic High School is on Leslie Street in the Markham portion of Thornhill. It serves Grades 9 to 12, and York Catholic lists International Baccalaureate and English as a Second Language at the school. The distinction between the regular attendance area and specialized-program entry matters when planning a move.

International Baccalaureate

IB is listed by the board. Confirm the current application process and entry criteria separately from regular school registration.

Thornhill address, Markham municipality

The school’s postal locality is Thornhill; this Leslie Street campus is in Markham. New-home links are selected on that municipal basis.

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.

Look up the school boundary Read enrolment requirements York Catholic District School Board

Considering a home in Markham?

Explore the municipality once you have checked the school’s entry rules. These searches do not establish distance, school boundaries, transportation or admission.

Resale homes in MarkhamNew-home projects:Markham

Official sources and check dates

York Catholic school directory — grades, address and programs Source checked Oct 3, 2026
Official school website Source checked Oct 3, 2026
York Catholic admissions and registration 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.