Iona Secondary School vs St Louis School
A head-to-head comparison of two schools in Ontario, Canada, 551 m apart, using official Canadian 2025 data. The better value in each row is highlighted.
Iona Secondary School
Mississauga · Catholic secondary · Grades 9-12
655 students
St Louis School
Mississauga · Catholic elementary · Grades JK-8
185 students
| Measure | Iona Secondary School Mississauga, Ontario | St Louis School Mississauga, Ontario |
|---|---|---|
| Success Index (Canada) | 50 Lower 50% | 44 Lower 50% |
| Province rank | #391 of 766 | #2346 of 3,871 |
| National rank | #391 of 766 | #2346 of 3,871 |
| Sector | Catholic | Catholic |
| Type | Secondary | Elementary |
| Year range | Grades 9-12 | Grades JK-8 |
| Students | 655 | 185 |
| Enrolment | 655 | 185 |
| EQAO Grade 3 | – | 69.7% |
| EQAO Grade 6 | – | 72% |
| EQAO Grade 9 maths | 57% | – |
| OSSLT pass rate | 83% | – |
| Low-income households | 9% | 10% |
| Parents without a credential | 4% | 5% |
| First language not English | 27% | 20% |
| Special education | 24% | 15% |
| 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 | Mississauga | Mississauga |
| province | Ontario | Ontario |
| Website | www.dpcdsb.org/IONAS | www.dpcdsb.org/LOUIS |
The verdict
- •Iona Secondary School scores higher on the Success Index (Canada) (49.8 vs 43.6).
- •Iona Secondary School is the larger school with 655 students compared with 185.
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 Iona Secondary School better than St Louis School?
On the Success Index (Canada), Iona Secondary School ranks higher (49.8 vs 43.6 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 Iona Secondary School and St Louis School?
About 551 m in a straight line, between Mississauga and Mississauga in Ontario.
Which has the better Enrolment?
Iona Secondary School: 655. St Louis School: 185. Students enrolled in the latest published year.
How do Iona Secondary School and St Louis School rank in Ontario?
Iona Secondary School is 391st of 766 and St Louis School is 2346th of 3,871 among secondary schools in Ontario on the 2025 Success Index (Canada).