South Grenville District High School vs St. Mark Catholic School
A head-to-head comparison of two schools in Ontario, Canada, 667 m apart, using official Canadian 2025 data. The better value in each row is highlighted.
South Grenville District High School
Prescott · Public secondary · Grades 9-12
370 students
St. Mark Catholic School
Prescott · Catholic elementary · Grades JK-8
350 students
| Measure | South Grenville District High School Prescott, Ontario | St. Mark Catholic School Prescott, Ontario |
|---|---|---|
| Success Index (Canada) | 35 Lower 50% | 46 Lower 50% |
| Province rank | #541 of 766 | #2231 of 3,871 |
| National rank | #541 of 766 | #2231 of 3,871 |
| Sector | Public | Catholic |
| Type | Secondary | Elementary |
| Year range | Grades 9-12 | Grades JK-8 |
| Students | 370 | 350 |
| Enrolment | 370 | 350 |
| EQAO Grade 3 | – | 68.3% |
| EQAO Grade 6 | – | 69% |
| EQAO Grade 9 maths | 35% | – |
| OSSLT pass rate | 81% | – |
| Low-income households | 10% | 10% |
| Parents without a credential | 0% | 0% |
| First language not English | 0% | 0% |
| Special education | 45% | 20% |
| 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 | Prescott | Prescott |
| province | Ontario | Ontario |
| Website | southgrenville.ucdsb.on.ca/ | www.stmark.cdsbeo.on.ca |
The verdict
- •St. Mark Catholic School scores higher on the Success Index (Canada) (45.8 vs 35.3).
- •South Grenville District High School is the larger school with 370 students compared with 350.
- •South Grenville District High School is a public school while St. Mark Catholic 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 South Grenville District High School better than St. Mark Catholic School?
On the Success Index (Canada), St. Mark Catholic School ranks higher (45.8 vs 35.3 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 South Grenville District High School and St. Mark Catholic School?
About 667 m in a straight line, between Prescott and Prescott in Ontario.
Which has the better Enrolment?
South Grenville District High School: 370. St. Mark Catholic School: 350. Students enrolled in the latest published year.
How do South Grenville District High School and St. Mark Catholic School rank in Ontario?
South Grenville District High School is 541st of 766 and St. Mark Catholic School is 2231st of 3,871 among secondary schools in Ontario on the 2025 Success Index (Canada).