Mississauga Secondary School vs St Gregory School
A head-to-head comparison of two schools in Ontario, Canada, 1.8 km apart, using official Canadian 2025 data. The better value in each row is highlighted.
Mississauga Secondary School
Mississauga · Public secondary · Grades 9-12
1,000 students
St Gregory School
Mississauga · Catholic elementary · Grades JK-8
515 students
| Measure | Mississauga Secondary School Mississauga, Ontario | St Gregory School Mississauga, Ontario |
|---|---|---|
| Success Index (Canada) | 52 Top 50% | 77 Top 25% |
| Province rank | #362 of 766 | #432 of 3,871 |
| National rank | #362 of 766 | #432 of 3,871 |
| Sector | Public | Catholic |
| Type | Secondary | Elementary |
| Year range | Grades 9-12 | Grades JK-8 |
| Students | 1,000 | 515 |
| Enrolment | 1,000 | 515 |
| EQAO Grade 3 | – | 82.7% |
| EQAO Grade 6 | – | 88.3% |
| EQAO Grade 9 maths | 53% | – |
| OSSLT pass rate | 88% | – |
| Low-income households | 7% | 7% |
| Parents without a credential | 5% | 2% |
| First language not English | 49% | 24% |
| Special education | 14% | 11% |
| Identified as gifted | 0% | 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 | Mississauga | Mississauga |
| province | Ontario | Ontario |
| Website | schools.peelschools.org/sec/mississauga/Pages/default.aspx | www.dpcdsb.org/GREGO |
The verdict
- •St Gregory School scores higher on the Success Index (Canada) (77.2 vs 52.3).
- •Mississauga Secondary School is the larger school with 1,000 students compared with 515.
- •Mississauga Secondary School is a public school while St Gregory 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 Mississauga Secondary School better than St Gregory School?
On the Success Index (Canada), St Gregory School ranks higher (77.2 vs 52.3 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 Mississauga Secondary School and St Gregory School?
About 1.8 km in a straight line, between Mississauga and Mississauga in Ontario.
Which has the better Enrolment?
Mississauga Secondary School: 1,000. St Gregory School: 515. Students enrolled in the latest published year.
How do Mississauga Secondary School and St Gregory School rank in Ontario?
Mississauga Secondary School is 362nd of 766 and St Gregory School is 432nd of 3,871 among secondary schools in Ontario on the 2025 Success Index (Canada).