Best secondary schools in Rainbow DSB (2025)
Secondary (high) schools and combined schools. Ranked by the Success Index (Canada) from official Canadian data; 9 schools in Rainbow DSB, Ontario. Rank positions shown on each profile are within Canada and Ontario.
- 187Lo-Ellen Park Secondary SchoolSudbury · Public Secondary96% OSSLT pass rate · 885 students
- 284Lockerby Composite SchoolSudbury · Public Secondary97% OSSLT pass rate · 535 students
- 343Manitoulin Secondary SchoolM'chigeeng · Public Secondary73% OSSLT pass rate · 420 students
- 443Lively District Secondary SchoolLively · Public Secondary81% OSSLT pass rate · 305 students
- 532Sudbury Secondary SchoolSudbury · Public Secondary78% OSSLT pass rate · 515 students
- 625Confederation Secondary SchoolVal Caron · Public Secondary70% OSSLT pass rate · 485 students
- 723Lasalle Secondary SchoolSudbury · Public Secondary77% OSSLT pass rate · 840 students
- 818Espanola High SchoolEspanola · Public Secondary75% OSSLT pass rate · 505 students
- 915Chelmsford Valley District Composite SchoolChelmsford · Public Secondary61% OSSLT pass rate · 220 students
| # | School | Sector | Success Index (Canada) | Key result | Students |
|---|---|---|---|---|---|
| 1 | Lo-Ellen Park Secondary School Sudbury · Secondary · Grades 9-12 | Public | 86.8 Top 5% | 96% OSSLT pass rate | 885 |
| 2 | Lockerby Composite School Sudbury · Secondary · Grades 9-12 | Public | 83.5 Top 10% | 97% OSSLT pass rate | 535 |
| 3 | Manitoulin Secondary School M'chigeeng · Secondary · Grades 9-12 | Public | 43.1 Lower 50% | 73% OSSLT pass rate | 420 |
| 4 | Lively District Secondary School Lively · Secondary · Grades 9-12 | Public | 42.8 Lower 50% | 81% OSSLT pass rate | 305 |
| 5 | Sudbury Secondary School Sudbury · Secondary · Grades 9-12 | Public | 32.0 Lower 50% | 78% OSSLT pass rate | 515 |
| 6 | Confederation Secondary School Val Caron · Secondary · Grades 9-12 | Public | 24.7 Lower 50% | 70% OSSLT pass rate | 485 |
| 7 | Lasalle Secondary School Sudbury · Secondary · Grades 9-12 | Public | 22.7 Lower 50% | 77% OSSLT pass rate | 840 |
| 8 | Espanola High School Espanola · Secondary · Grades 9-12 | Public | 17.9 Lower 50% | 75% OSSLT pass rate | 505 |
| 9 | Chelmsford Valley District Composite School Chelmsford · Secondary · Grades 9-12 | Public | 14.8 Lower 50% | 61% OSSLT pass rate | 220 |
Lo-Ellen Park Secondary School in Sudbury leads the 2025 list of secondary schools in Rainbow DSB with a Success Index (Canada) of 86.8. Of the 9 schools shown, 9 are public.
For the full picture see the wider Ontario secondary schools rankings, every school on the Rainbow DSB 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 Rainbow DSB?
Lo-Ellen Park Secondary School in Sudbury, Ontario ranks first among secondary schools in Rainbow DSB with a Success Index (Canada) of 86.8 out of 100 (Enrolment: 885).
How are secondary schools in Rainbow DSB 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.