ECSD · Senior High
Holy Trinity Catholic High School
10-12 · 7007 28 Ave. NW
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
- 26Typical for these grades across ECSD schools: 27from 209 classesNot counted above: 18 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 ECSD figure is the middle of every ECSD school's own figure for those grades, across Alberta's release.
Students enrolled
1,256 students in 2025/26 (preliminary)
Students enrolled each school year, 2016/17 to 2025/26
- 2016/17: 929 students
- 2017/18: 1,046 students
- 2018/19: 988 students
- 2019/20: 1,007 students
- 2020/21: 1,004 students
- 2021/22: 1,089 students
- 2022/23: 1,198 students
- 2023/24: 1,262 students
- 2024/25: 1,263 students
- 2025/26: 1,256 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
- Address
- 7007 28 Ave. NW
ECSD attendance areas give in-area families priority, not a guaranteed place. Holy Trinity Catholic High School is your priority senior high only if your address falls inside its area — confirm yours with an address lookup.
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Where Holy Trinity Catholic High School is
7007 28 Ave. NW
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