Stephen Lewis Secondary School vs Westmount Collegiate Institute
A head-to-head comparison of two secondary schools in Ontario, Canada, 2.7 km apart, using official Canadian 2025 data. The better value in each row is highlighted.
Stephen Lewis Secondary School
Thornhill · Public secondary · Grades 9-12
1,730 students
Westmount Collegiate Institute
Thornhill · Public secondary · Grades 9-12
1,140 students
| Measure | Stephen Lewis Secondary School Thornhill, Ontario | Westmount Collegiate Institute Thornhill, Ontario |
|---|---|---|
| Success Index (Canada) | 86 Top 5% | 76 Top 25% |
| Province rank | #29 of 766 | #110 of 766 |
| National rank | #29 of 766 | #110 of 766 |
| Sector | Public | Public |
| Type | Secondary | Secondary |
| Year range | Grades 9-12 | Grades 9-12 |
| Students | 1,730 | 1,140 |
| Enrolment | 1,730 | 1,140 |
| EQAO Grade 3 | – | – |
| EQAO Grade 6 | – | – |
| EQAO Grade 9 maths | 81% | 72% |
| OSSLT pass rate | 92% | 90% |
| Low-income households | 5% | 7% |
| Parents without a credential | 1% | 1% |
| First language not English | 48% | 42% |
| Special education | 26% | 29% |
| Identified as gifted | 1% | 1% |
| 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 | Thornhill | Thornhill |
| province | Ontario | Ontario |
| Website | stephenlewis.ss.yrdsb.ca/ | westmount.ci.yrdsb.ca/ |
The verdict
- •Stephen Lewis Secondary School scores higher on the Success Index (Canada) (86.2 vs 76.2).
- •Stephen Lewis Secondary School does better on eqao grade 9 mathematics (81% vs 72%).
- •Stephen Lewis Secondary School does better on osslt first-attempt pass rate (92% vs 90%).
- •Stephen Lewis Secondary School is the larger school with 1,730 students compared with 1,140.
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 Stephen Lewis Secondary School better than Westmount Collegiate Institute?
On the Success Index (Canada), Stephen Lewis Secondary School ranks higher (86.2 vs 76.2 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 Stephen Lewis Secondary School and Westmount Collegiate Institute?
About 2.7 km in a straight line, between Thornhill and Thornhill in Ontario.
Which has the better Enrolment?
Stephen Lewis Secondary School: 1,730. Westmount Collegiate Institute: 1,140. Students enrolled in the latest published year.
How do Stephen Lewis Secondary School and Westmount Collegiate Institute rank in Ontario?
Stephen Lewis Secondary School is 29th of 766 and Westmount Collegiate Institute is 110th of 766 among secondary schools in Ontario on the 2025 Success Index (Canada).