St Augustine Catholic High School vs St Justin Martyr Catholic Elementary 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 Augustine Catholic High School
Markham · Catholic secondary · Grades 9-12
1,575 students
St Justin Martyr Catholic Elementary School
Unionville · Catholic elementary · Grades JK-8
675 students
| Measure | St Augustine Catholic High School Markham, Ontario | St Justin Martyr Catholic Elementary School Unionville, Ontario |
|---|---|---|
| Success Index (Canada) | 82 Top 10% | 80 Top 10% |
| Province rank | #60 of 766 | #314 of 3,871 |
| National rank | #60 of 766 | #314 of 3,871 |
| Sector | Catholic | Catholic |
| Type | Secondary | Elementary |
| Year range | Grades 9-12 | Grades JK-8 |
| Students | 1,575 | 675 |
| Enrolment | 1,575 | 675 |
| EQAO Grade 3 | – | 98% |
| EQAO Grade 6 | – | 97.7% |
| EQAO Grade 9 maths | 97% | – |
| OSSLT pass rate | 96% | – |
| Low-income households | 11% | 14% |
| Parents without a credential | 2% | 2% |
| First language not English | 36% | 55% |
| Special education | 12% | 8% |
| 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 | Markham | Unionville |
| province | Ontario | Ontario |
| Website | stau.ycdsb.ca | sjn.ycdsb.ca |
The verdict
- •St Augustine Catholic High School scores higher on the Success Index (Canada) (81.8 vs 80.1).
- •St Augustine Catholic High School is the larger school with 1,575 students compared with 675.
The Success Index (Canada) summarises published results and context from official data. It does not measure teaching quality or fit. Methodology.
Free academic assessment
Torn between two schools? Start with your child.
Whichever you choose, a free Success Tutoring assessment shows exactly where your child is in English and Maths and how to get ahead before the next school year.
- Personalised learning plan mapped to the Australian Curriculum
- English & Maths from Kindergarten to Year 12
- Flexible memberships, no lock-in contracts
- Centres across NSW, VIC, QLD, WA, SA and ACT
Frequently asked questions
Is St Augustine Catholic High School better than St Justin Martyr Catholic Elementary School?
On the Success Index (Canada), St Augustine Catholic High School ranks higher (81.8 vs 80.1 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 Augustine Catholic High School and St Justin Martyr Catholic Elementary School?
About 1.4 km in a straight line, between Markham and Unionville in Ontario.
Which has the better Enrolment?
St Augustine Catholic High School: 1,575. St Justin Martyr Catholic Elementary School: 675. Students enrolled in the latest published year.
How do St Augustine Catholic High School and St Justin Martyr Catholic Elementary School rank in Ontario?
St Augustine Catholic High School is 60th of 766 and St Justin Martyr Catholic Elementary School is 314th of 3,871 among secondary schools in Ontario on the 2025 Success Index (Canada).