St Mary Catholic Secondary School vs William Dunbar Public School
A head-to-head comparison of two schools in Ontario, Canada, 1.4 km apart, using official Canadian 2025 data. The better value in each row is highlighted.
St Mary Catholic Secondary School
Pickering · Catholic secondary · Grades 9-12
1,310 students
William Dunbar Public School
Pickering · Public elementary · Grades JK-8
660 students
| Measure | St Mary Catholic Secondary School Pickering, Ontario | William Dunbar Public School Pickering, Ontario |
|---|---|---|
| Success Index (Canada) | 73 Top 25% | 85 Top 10% |
| Province rank | #143 of 766 | #194 of 3,871 |
| National rank | #143 of 766 | #194 of 3,871 |
| Sector | Catholic | Public |
| Type | Secondary | Elementary |
| Year range | Grades 9-12 | Grades JK-8 |
| Students | 1,310 | 660 |
| Enrolment | 1,310 | 660 |
| EQAO Grade 3 | – | 82% |
| EQAO Grade 6 | – | 87.7% |
| EQAO Grade 9 maths | 61% | – |
| OSSLT pass rate | 92% | – |
| Low-income households | 5% | 3% |
| Parents without a credential | 2% | 0% |
| First language not English | 7% | 21% |
| Special education | 20% | 9% |
| Identified as gifted | 0% | 22% |
| 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 | stmary.dcdsb.ca/ | williamdunbar.ddsb.ca |
The verdict
- •William Dunbar Public School scores higher on the Success Index (Canada) (84.6 vs 72.8).
- •St Mary Catholic Secondary School is the larger school with 1,310 students compared with 660.
- •St Mary Catholic Secondary School is a catholic school while William Dunbar Public School is a public 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 St Mary Catholic Secondary School better than William Dunbar Public School?
On the Success Index (Canada), William Dunbar Public School ranks higher (84.6 vs 72.8 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 St Mary Catholic Secondary School and William Dunbar Public School?
About 1.4 km in a straight line, between Pickering and Pickering in Ontario.
Which has the better Enrolment?
St Mary Catholic Secondary School: 1,310. William Dunbar Public School: 660. Students enrolled in the latest published year.
How do St Mary Catholic Secondary School and William Dunbar Public School rank in Ontario?
St Mary Catholic Secondary School is 143rd of 766 and William Dunbar Public School is 194th of 3,871 among secondary schools in Ontario on the 2025 Success Index (Canada).