Archbishop Denis O'Connor Catholic High School vs ÉÉC Notre-Dame-de-la-Jeunesse-Ajax
A head-to-head comparison of two schools in Ontario, Canada, 1.3 km apart, using official Canadian 2025 data. The better value in each row is highlighted.
Archbishop Denis O'Connor Catholic High School
Ajax · Catholic secondary · Grades 9-12
710 students
ÉÉC Notre-Dame-de-la-Jeunesse-Ajax
Ajax · Catholic elementary · Grades JK-6
220 students
| Measure | Archbishop Denis O'Connor Catholic High School Ajax, Ontario | ÉÉC Notre-Dame-de-la-Jeunesse-Ajax Ajax, Ontario |
|---|---|---|
| Success Index (Canada) | 50 Lower 50% | 72 Top 25% |
| Province rank | #393 of 766 | #718 of 3,871 |
| National rank | #393 of 766 | #718 of 3,871 |
| Sector | Catholic | Catholic |
| Type | Secondary | Elementary |
| Year range | Grades 9-12 | Grades JK-6 |
| Students | 710 | 220 |
| Enrolment | 710 | 220 |
| EQAO Grade 3 | – | 83.3% |
| EQAO Grade 6 | – | 82.7% |
| EQAO Grade 9 maths | 49% | – |
| OSSLT pass rate | 85% | – |
| Low-income households | 6% | 5% |
| Parents without a credential | 3% | 5% |
| First language not English | 11% | 45% |
| Special education | 24% | 10% |
| 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 | Ajax | Ajax |
| province | Ontario | Ontario |
| Website | doc.dcdsb.ca/ | nddlja.csdccs.edu.on.ca/ |
The verdict
- •ÉÉC Notre-Dame-de-la-Jeunesse-Ajax scores higher on the Success Index (Canada) (71.7 vs 49.7).
- •Archbishop Denis O'Connor Catholic High School is the larger school with 710 students compared with 220.
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 Archbishop Denis O'Connor Catholic High School better than ÉÉC Notre-Dame-de-la-Jeunesse-Ajax?
On the Success Index (Canada), ÉÉC Notre-Dame-de-la-Jeunesse-Ajax ranks higher (71.7 vs 49.7 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 Archbishop Denis O'Connor Catholic High School and ÉÉC Notre-Dame-de-la-Jeunesse-Ajax?
About 1.3 km in a straight line, between Ajax and Ajax in Ontario.
Which has the better Enrolment?
Archbishop Denis O'Connor Catholic High School: 710. ÉÉC Notre-Dame-de-la-Jeunesse-Ajax: 220. Students enrolled in the latest published year.
How do Archbishop Denis O'Connor Catholic High School and ÉÉC Notre-Dame-de-la-Jeunesse-Ajax rank in Ontario?
Archbishop Denis O'Connor Catholic High School is 393rd of 766 and ÉÉC Notre-Dame-de-la-Jeunesse-Ajax is 718th of 3,871 among secondary schools in Ontario on the 2025 Success Index (Canada).