Dunbarton High School vs St Mary Catholic Secondary School
A head-to-head comparison of two secondary schools in Ontario, Canada, 1.6 km apart, using official Canadian 2025 data. The better value in each row is highlighted.
Dunbarton High School
Pickering · Public secondary · Grades 9-12
1,630 students
St Mary Catholic Secondary School
Pickering · Catholic secondary · Grades 9-12
1,310 students
| Measure | Dunbarton High School Pickering, Ontario | St Mary Catholic Secondary School Pickering, Ontario |
|---|---|---|
| Success Index (Canada) | 72 Top 25% | 73 Top 25% |
| Province rank | #156 of 766 | #143 of 766 |
| National rank | #156 of 766 | #143 of 766 |
| Sector | Public | Catholic |
| Type | Secondary | Secondary |
| Year range | Grades 9-12 | Grades 9-12 |
| Students | 1,630 | 1,310 |
| Enrolment | 1,630 | 1,310 |
| EQAO Grade 3 | – | – |
| EQAO Grade 6 | – | – |
| EQAO Grade 9 maths | 71% | 61% |
| OSSLT pass rate | 86% | 92% |
| Low-income households | 5% | 5% |
| Parents without a credential | 2% | 2% |
| First language not English | 23% | 7% |
| Special education | 19% | 20% |
| 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 | Pickering | Pickering |
| province | Ontario | Ontario |
| Website | dunbartonhs.ddsb.ca | stmary.dcdsb.ca/ |
The verdict
- •St Mary Catholic Secondary School scores higher on the Success Index (Canada) (72.8 vs 71.7).
- •Dunbarton High School does better on eqao grade 9 mathematics (71% vs 61%).
- •St Mary Catholic Secondary School does better on osslt first-attempt pass rate (92% vs 86%).
- •Dunbarton High School is the larger school with 1,630 students compared with 1,310.
- •Dunbarton High School is a public school while St Mary Catholic Secondary 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 Dunbarton High School better than St Mary Catholic Secondary School?
On the Success Index (Canada), St Mary Catholic Secondary School ranks higher (72.8 vs 71.7 out of 100). The index is built from published results and context data, not from teaching quality or fit, so visit both schools before deciding.
How far apart are Dunbarton High School and St Mary Catholic Secondary School?
About 1.6 km in a straight line, between Pickering and Pickering in Ontario.
Which has the better Enrolment?
Dunbarton High School: 1,630. St Mary Catholic Secondary School: 1,310. Students enrolled in the latest published year.
How do Dunbarton High School and St Mary Catholic Secondary School rank in Ontario?
Dunbarton High School is 156th of 766 and St Mary Catholic Secondary School is 143rd of 766 among secondary schools in Ontario on the 2025 Success Index (Canada).