CBE · Senior High
Early French ImmersionLate French ImmersionRegularWilliam Aberhart High School
10-12 · 3009 Morley Trail NW Calgary, AB T2M 4G9
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
- 34Typical for these grades across CBE schools: 31from 151 classesNot counted above: 2 classes with fewer than 10 students (Alberta does not publish their sizes).
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
1,317 students in 2025/26 (preliminary)
Students enrolled each school year, 2016/17 to 2025/26
- 2016/17: 1,397 students
- 2017/18: 1,352 students
- 2018/19: 1,339 students
- 2019/20: 1,430 students
- 2020/21: 1,318 students
- 2021/22: 1,300 students
- 2022/23: 1,282 students
- 2023/24: 1,290 students
- 2024/25: 1,300 students
- 2025/26: 1,317 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
- Early French Immersion · Late French Immersion · Regular
- Address
- 3009 Morley Trail NW Calgary, AB T2M 4G9
- Neighbourhood
- Banff Trail (location, not catchment)
CBE schools are assigned by home address. William Aberhart High School is the designated senior high only if your address falls inside its catchment — confirm yours with an address lookup. Alternative programs are application-based and many run an admission lottery — they are not guaranteed by address. See how and when applications work.
- Classes & supports
- Advanced Placement — Biology, Chemistry, Physics, Science, English, Political Science, Mathematics, French Language Arts
- English as a Second Language
- Exceptional & Special Needs
- International Students
“William Aberhart High School is a comprehensive high school offering English, and French Immersion programs located in the northwest community of Banff Trail, near the University of Calgary.”
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 William Aberhart High School is
3009 Morley Trail NW Calgary, AB T2M 4G9
Your catchment boundary is set by your home address, not the school’s location — look up your address to confirm zoning.
Sources for William Aberhart High School: Official school page (CBE) · Survey source (SIRR, PDF) · School Development Plan (PDF)
Last updated Jun 2026 · How we score schools