Best secondary schools in CSDC de l'Est ontarien (2025)
Secondary (high) schools and combined schools. Ranked by the Success Index (Canada) from official Canadian data; 7 schools in CSDC de l'Est ontarien, Ontario. Rank positions shown on each profile are within Canada and Ontario.
- 190École secondaire catholique de CasselmanCasselman · Catholic Secondary96% OSSLT pass rate · 620 students
- 290École secondaire catholique EmbrunEmbrun · Catholic Secondary96% OSSLT pass rate · 440 students
- 381École secondaire catholique L'EscaleRockland · Catholic Secondary98% OSSLT pass rate · 645 students
- 470École secondaire catholique de PlantagenetPlantagenet · Catholic Secondary95% OSSLT pass rate · 310 students
- 567École secondaire catholique régionale de HawkesburyHawkesbury · Catholic Secondary100% OSSLT pass rate · 380 students
- 660École secondaire catholique La CitadelleCornwall · Catholic Secondary92% OSSLT pass rate · 465 students
- 755École secondaire catholique Le RelaisAlexandria · Catholic Secondary82% OSSLT pass rate · 175 students
| # | School | Sector | Success Index (Canada) | Key result | Students |
|---|---|---|---|---|---|
| 1 | École secondaire catholique de Casselman Casselman · Secondary · Grades 9-12 | Catholic | 90.4 Top 5% | 96% OSSLT pass rate | 620 |
| 2 | École secondaire catholique Embrun Embrun · Secondary · Grades 9-12 | Catholic | 90.0 Top 5% | 96% OSSLT pass rate | 440 |
| 3 | École secondaire catholique L'Escale Rockland · Secondary · Grades 9-12 | Catholic | 80.8 Top 10% | 98% OSSLT pass rate | 645 |
| 4 | École secondaire catholique de Plantagenet Plantagenet · Secondary · Grades 9-12 | Catholic | 70.1 Top 25% | 95% OSSLT pass rate | 310 |
| 5 | École secondaire catholique régionale de Hawkesbury Hawkesbury · Secondary · Grades 9-12 | Catholic | 67.4 Top 50% | 100% OSSLT pass rate | 380 |
| 6 | École secondaire catholique La Citadelle Cornwall · Secondary · Grades 9-12 | Catholic | 60.4 Top 50% | 92% OSSLT pass rate | 465 |
| 7 | École secondaire catholique Le Relais Alexandria · Secondary · Grades 9-12 | Catholic | 54.5 Top 50% | 82% OSSLT pass rate | 175 |
École secondaire catholique de Casselman in Casselman leads the 2025 list of secondary schools in CSDC de l'Est ontarien with a Success Index (Canada) of 90.4. Of the 7 schools shown, 7 are catholic.
For the full picture see the wider Ontario secondary schools rankings, every school on the CSDC de l'Est ontarien page, or the comparison tool to put a shortlist side by side.
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Frequently asked questions
What is the best secondary school in CSDC de l'Est ontarien?
École secondaire catholique de Casselman in Casselman, Ontario ranks first among secondary schools in CSDC de l'Est ontarien with a Success Index (Canada) of 90.4 out of 100 (Enrolment: 620).
How are secondary schools in CSDC de l'Est ontarien ranked?
Each school's Success Index (Canada) combines 8 factors: eqao grade 3 (reading, writing, maths) (20%), eqao grade 6 (reading, writing, maths) (25%), eqao grade 9 mathematics (25%), osslt first-attempt pass rate (20%), fsa literacy score (25%), fsa numeracy score (25%), community advantage (fewer low-income households) (10%), parent education (fewer parents without a credential) (10%). Each factor is a percentile against schools of the same type across Canada. Schools with fewer than 60 students are excluded from rankings.
Are these 2025 rankings official?
No. They are computed by Success Tutoring from official Canadian data (Ontario – School information and student demographics; BC Data Catalogue – Foundation Skills Assessment). Provinces publish different assessments, so scores are comparable within a province, not between provinces.