Brockville Collegiate Institute vs St Mary's High School
A head-to-head comparison of two secondary schools in Ontario, Canada, 1.2 km apart, using official Canadian 2025 data. The better value in each row is highlighted.
Brockville Collegiate Institute
Brockville · Public secondary · Grades 9-12
425 students
St Mary's High School
Brockville · Catholic secondary · Grades 9-12
385 students
| Measure | Brockville Collegiate Institute Brockville, Ontario | St Mary's High School Brockville, Ontario |
|---|---|---|
| Success Index (Canada) | 59 Top 50% | 58 Top 50% |
| Province rank | #292 of 766 | #295 of 766 |
| National rank | #292 of 766 | #295 of 766 |
| Sector | Public | Catholic |
| Type | Secondary | Secondary |
| Year range | Grades 9-12 | Grades 9-12 |
| Students | 425 | 385 |
| Enrolment | 425 | 385 |
| EQAO Grade 3 | – | – |
| EQAO Grade 6 | – | – |
| EQAO Grade 9 maths | 67% | 49% |
| OSSLT pass rate | 80% | 93% |
| Low-income households | 10% | 5% |
| Parents without a credential | 0% | 5% |
| First language not English | 5% | 5% |
| Special education | 30% | 30% |
| Identified as gifted | 0% | 0% |
| FSA literacy score | – | – |
| FSA numeracy score | – | – |
| FSA Grade 4 literacy score | – | – |
| FSA Grade 4 numeracy score | – | – |
| FSA Grade 7 literacy score | – | – |
| FSA Grade 7 numeracy score | – | – |
| city or town | Brockville | Brockville |
| province | Ontario | Ontario |
| Website | bci.ucdsb.on.ca | www.stmarychs.cdsbeo.on.ca |
The verdict
- •Both schools have almost identical Success Index (Canada) scores (58.7 vs 58.4).
- •Brockville Collegiate Institute does better on eqao grade 9 mathematics (67% vs 49%).
- •St Mary's High School does better on osslt first-attempt pass rate (93% vs 80%).
- •Brockville Collegiate Institute is the larger school with 425 students compared with 385.
- •Brockville Collegiate Institute is a public school while St Mary's High School is a catholic school, so fees and admission rules differ.
The Success Index (Canada) summarises published results and context from official data. It does not measure teaching quality or fit. Methodology.
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Frequently asked questions
Is Brockville Collegiate Institute better than St Mary's High School?
The two schools are very close on the Success Index (Canada). Differences in sector, size, programmes and distance from home will matter more than the score.
How far apart are Brockville Collegiate Institute and St Mary's High School?
About 1.2 km in a straight line, between Brockville and Brockville in Ontario.
Which has the better Enrolment?
Brockville Collegiate Institute: 425. St Mary's High School: 385. Students enrolled in the latest published year.
How do Brockville Collegiate Institute and St Mary's High School rank in Ontario?
Brockville Collegiate Institute is 292nd of 766 and St Mary's High School is 295th of 766 among secondary schools in Ontario on the 2025 Success Index (Canada).