Best secondary schools in Waterloo CDSB (2025)
Secondary (high) schools and combined schools. Ranked by the Success Index (Canada) from official Canadian data; 5 schools in Waterloo CDSB, Ontario. Rank positions shown on each profile are within Canada and Ontario.
- 173St David Catholic Secondary SchoolWaterloo · Catholic Secondary97% OSSLT pass rate · 1,080 students
- 253St Benedict Catholic Secondary SchoolCambridge · Catholic Secondary90% OSSLT pass rate · 1,955 students
- 352Monsignor Doyle Catholic Secondary SchoolCambridge · Catholic Secondary92% OSSLT pass rate · 1,115 students
- 450Resurrection Catholic Secondary SchoolKitchener · Catholic Secondary90% OSSLT pass rate · 1,920 students
- 547St Mary's High SchoolKitchener · Catholic Secondary94% OSSLT pass rate · 2,240 students
| # | School | Sector | Success Index (Canada) | Key result | Students |
|---|---|---|---|---|---|
| 1 | St David Catholic Secondary School Waterloo · Secondary · Grades 9-12 | Catholic | 73.3 Top 25% | 97% OSSLT pass rate | 1,080 |
| 2 | St Benedict Catholic Secondary School Cambridge · Secondary · Grades 9-12 | Catholic | 53.1 Top 50% | 90% OSSLT pass rate | 1,955 |
| 3 | Monsignor Doyle Catholic Secondary School Cambridge · Secondary · Grades 9-12 | Catholic | 51.8 Top 50% | 92% OSSLT pass rate | 1,115 |
| 4 | Resurrection Catholic Secondary School Kitchener · Secondary · Grades 9-12 | Catholic | 49.8 Lower 50% | 90% OSSLT pass rate | 1,920 |
| 5 | St Mary's High School Kitchener · Secondary · Grades 9-12 | Catholic | 47.4 Lower 50% | 94% OSSLT pass rate | 2,240 |
St David Catholic Secondary School in Waterloo leads the 2025 list of secondary schools in Waterloo CDSB with a Success Index (Canada) of 73.3. Of the 5 schools shown, 5 are catholic.
For the full picture see the wider Ontario secondary schools rankings, every school on the Waterloo CDSB 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 Waterloo CDSB?
St David Catholic Secondary School in Waterloo, Ontario ranks first among secondary schools in Waterloo CDSB with a Success Index (Canada) of 73.3 out of 100 (Enrolment: 1,080).
How are secondary schools in Waterloo CDSB 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.