CBE · Senior High
RegularRobert Thirsk High School
10-12 · 8777 Nose Hill Drive NW Calgary, AB T3G 5T3
The methodology
The data behind this score
The Roost Rating weights AEAM above PAT, plus Roost field research, capped at 95. A missing source has its weight shared across the ones that remain, never counted as a zero.
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Classes and enrolment
Typical class size
- Grades 10 to 12
- 31Typical for these grades across CBE schools: 31from 194 classes
Each figure is the middle class size in those grades for 2025/26, among the classes whose sizes are published. A class is one teacher with one group of students, so a group with several teachers counts once per teacher, and in junior and senior high each course section counts. The CBE figure is the middle of every CBE school's own figure for those grades, across Alberta's release.
Students enrolled
1,438 students in 2025/26 (preliminary)
Students enrolled each school year, 2016/17 to 2025/26
- 2016/17: 1,177 students
- 2017/18: 1,257 students
- 2018/19: 1,209 students
- 2019/20: 1,240 students
- 2020/21: 1,149 students
- 2021/22: 1,157 students
- 2022/23: 1,378 students
- 2023/24: 1,487 students
- 2024/25: 1,453 students
- 2025/26: 1,438 students
Enrolment moves with boundary changes, new schools nearby, the grades a school offers and how many children live close by. Most schools here had fewer students in 2020/21, the first school year of the pandemic.
Context only: these describe the school's situation, not how well it teaches, and neither is part of the Roost Rating.
Contains information licensed under the Open Government Licence – Alberta. Source: Alberta Education and Childcare.
Class sizes as of Nov 24, 2025Enrolment 2025/26 is preliminary: Alberta replaces it with final figures later.About these figures
Enrolment
How enrolment works
- Grades
- 10-12
- Programs
- Regular
- Address
- 8777 Nose Hill Drive NW Calgary, AB T3G 5T3
- Neighbourhood
- Arbour Lake (location, not catchment)
CBE schools are assigned by home address. Robert Thirsk High School is the designated senior high only if your address falls inside its catchment — confirm yours with an address lookup.
- Classes & supports
- Advanced Placement (AP)
- English Language Arts
From the school's own CBE page — care arrangements and class placements change; confirm with the school before you decide.
Register through the Calgary Board of Education.
Where Robert Thirsk High School is
8777 Nose Hill Drive NW Calgary, AB T3G 5T3
Your catchment boundary is set by your home address, not the school’s location — look up your address to confirm zoning.
Sources for Robert Thirsk High School: Official school page (CBE) · Survey source (SIRR, PDF) · School Development Plan (PDF)
Last updated Jun 2026 · How we score schools