Catholic School Catholic

St Mary's High School

Brockville, ON · CDSB of Eastern Ontario · Grades 9-12

Data from official ON records · Last updated September 6, 2026

9-12 Grades
Catholic Type
385 Enrollment
Brockville City
CDSB of Eastern Ontario Board
613-342-4911 Phone
613-342-4911 Visit Website Report an error

Contact & School Information

Address
40 Central Ave, K6V4N5
Grades
9-12
Enrollment
385 students
Phone
613-342-4911
Website
http://www.stmarychs.cdsbeo.on.ca
School Board
CDSB of Eastern Ontario

Location

Back To School Supplies

Suggested buying guides by grade on Amazon.ca. These are general guides, not official requirements or recommendations from this school or its board.

Kindergarten – Grade 2 Grades 3 – 5 Grades 6 – 8 Grades 9 – 12 Backpacks

Neighbourhood Income

Statistics Canada 2021 Census · FSA level
Average After Tax Income
$41,360
Average Total Income
$48,280
Median After Tax Income
$34,800
Median Total Income
$38,400

Based on the forward sortation area (first three characters of the postal code) for this school's address.

Academic Results

EQAO data

This page includes the EQAO results for St Mary's High School from 2024-2025 covering Mathematics in Grade 9. See the source data at EQAO. Expand a year and subject below to see the detailed scores.

Detailed results

2024-2025 · Grade 9 Math · Mathematics · Grade 9
% meeting or exceeding the standard
49.0%

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