Welland Centennial Secondary School

Public · Secondary

240 Thorold Rd, Welland, ON, L3C3W2

+1 (905) 735-0700

District School Board of Niagara

Official website

Grades 9-121,050 studentsopen

School information

Grades served: 9-12
Enrollment: 1,050
School organization: District School Board of Niagara

Academic Performance

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

secondary

6.9 / 10

Grade 9 Mathematics: 65%
Grade 10 OSSLT, first attempt: 87%

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

1,050 students in 2024-2025 — up 29% since 2011-2012. Roll as reported by Ontario, not a projection.

11–12817
12–13819
13–14783
14–15792
15–16801
16–17838
17–18850
18–19910
19–20880
20–21900
21–22940
22–23965
23–241,040
24–251,050

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.