Clarkson Secondary School

Public · Secondary

2524 Bromsgrove Rd, Mississauga, ON, L5J1L8

+1 (905) 822-6700

Peel District School Board

Official website

Grades 9-12740 studentsopen

School information

Grades served: 9-12
Enrollment: 740
School organization: Peel District School Board

Academic Performance

Scores compare similar schools only within Ontario, never across Canada.

secondary

4.6 / 10

Grade 9 Mathematics: 49%
Grade 10 OSSLT, first attempt: 84%

How Ontario assesses schools

EQAO, run by Education Quality and Accountability Office.

Ontario publishes provincial assessment results for individual schools.

Grades tested: 3, 6, 9, 10
Subjects: Reading, Writing, Mathematics, Literacy
Most recent year: 2024-2025

Results for this school

Secondary

Results published

A school without a score is not a school with a low score. Scores are only ever compared within Ontario and within the same stage — never between provinces, which use different tests.

Education Quality and Accountability Office

Enrolment over time

740 students in 2024-2025 — down 17% since 2011-2012. Roll as reported by Ontario, not a projection.

11–12890
12–13882
13–14894
14–15862
15–16813
16–17833
17–18786
18–19790
19–20770
20–21710
21–22665
22–23700
23–24680
24–25740

Some years are published as rounded or banded counts.

Programmes

Programmes Ontario lists for this school in 2025-2026. Only programmes the province publishes a register for can appear here, so this is not a full list of everything the school offers — and an absent programme does not mean it is not taught.