Largest Schools in Cornwall (2025)
Schools with the highest enrolment. Ranked by the Success Index (Canada) from official Canadian data; 21 schools in Cornwall, Ontario. Rank positions shown on each profile are within Canada and Ontario.
- 136St Joseph's Secondary SchoolCornwall · Catholic SecondaryEnrolment: 745
- 255École élémentaire publique Rose des VentsCornwall · Public ElementaryEnrolment: 590
- 38Cornwall Collegiate and Vocational SchoolCornwall · Public SecondaryEnrolment: 575
- 44Central Public SchoolCornwall · Public ElementaryEnrolment: 575
- 512Bridgewood Public SchoolCornwall · Public ElementaryEnrolment: 520
- 65St Lawrence Secondary SchoolCornwall · Public SecondaryEnrolment: 505
- 724Eamer's Corners Public SchoolCornwall · Public ElementaryEnrolment: 500
- 860École secondaire catholique La CitadelleCornwall · Catholic SecondaryEnrolment: 465
- 96Sacred Heart SchoolCornwall · Catholic ElementaryEnrolment: 450
- 1025Viscount Alexander Public SchoolCornwall · Public ElementaryEnrolment: 410
- 114Bishop Macdonell Separate SchoolCornwall · Catholic ElementaryEnrolment: 385
- 1247École élémentaire catholique Marie-TanguayCornwall · Catholic ElementaryEnrolment: 370
- 1331École élémentaire catholique Notre-DameCornwall · Catholic ElementaryEnrolment: 305
- 1459St. Joseph Intermediate Catholic SchoolCornwall · Catholic ElementaryEnrolment: 275
- 1552St Peter's SchoolCornwall · Catholic ElementaryEnrolment: 265
- 1653St Anne's SchoolCornwall · Catholic ElementaryEnrolment: 260
- 179St Lawrence Intermediate SchoolCornwall · Public ElementaryEnrolment: 205
- 1851École secondaire publique L'HéritageCornwall · Public SecondaryEnrolment: 195
- 1926École intermédiaire catholique La CitadelleCornwall · Catholic ElementaryEnrolment: 195
- 2022Cornwall Intermediate SchoolCornwall · Public ElementaryEnrolment: 165
- 2159École élémentaire publique L'HéritageCornwall · Public ElementaryEnrolment: 125
| # | School | Sector | Enrolment | Success Index (Canada) | Key result | Students |
|---|---|---|---|---|---|---|
| 1 | St Joseph's Secondary School Cornwall · Secondary · Grades 9-12 | Catholic | 745 | 35.7 Lower 50% | 83% OSSLT pass rate | 745 |
| 2 | École élémentaire publique Rose des Vents Cornwall · Elementary · Grades JK-6 | Public | 590 | 55.0 Top 50% | 80.3% EQAO Grade 6 | 590 |
| 3 | Cornwall Collegiate and Vocational School Cornwall · Secondary · Grades 9-12 | Public | 575 | 7.9 Lower 50% | 72% OSSLT pass rate | 575 |
| 4 | Central Public School Cornwall · Elementary · Grades JK-6 | Public | 575 | 4.4 Lower 50% | 50.3% EQAO Grade 6 | 575 |
| 5 | Bridgewood Public School Cornwall · Elementary · Grades JK-6 | Public | 520 | 11.8 Lower 50% | 50.7% EQAO Grade 6 | 520 |
| 6 | St Lawrence Secondary School Cornwall · Secondary · Grades 9-12 | Public | 505 | 5.1 Lower 50% | 53% OSSLT pass rate | 505 |
| 7 | Eamer's Corners Public School Cornwall · Elementary · Grades JK-6 | Public | 500 | 24.4 Lower 50% | 65.3% EQAO Grade 6 | 500 |
| 8 | École secondaire catholique La Citadelle Cornwall · Secondary · Grades 9-12 | Catholic | 465 | 60.4 Top 50% | 92% OSSLT pass rate | 465 |
| 9 | Sacred Heart School Cornwall · Elementary · Grades JK-6 | Catholic | 450 | 6.4 Lower 50% | 48% EQAO Grade 6 | 450 |
| 10 | Viscount Alexander Public School Cornwall · Elementary · Grades JK-6 | Public | 410 | 24.8 Lower 50% | 61% EQAO Grade 6 | 410 |
| 11 | Bishop Macdonell Separate School Cornwall · Elementary · Grades JK-6 | Catholic | 385 | 4.3 Lower 50% | 46% EQAO Grade 6 | 385 |
| 12 | École élémentaire catholique Marie-Tanguay Cornwall · Elementary · Grades JK-6 | Catholic | 370 | 47.2 Lower 50% | 75.7% EQAO Grade 6 | 370 |
| 13 | École élémentaire catholique Notre-Dame Cornwall · Elementary · Grades JK-6 | Catholic | 305 | 30.7 Lower 50% | 72.3% EQAO Grade 6 | 305 |
| 14 | St. Joseph Intermediate Catholic School Cornwall · Elementary · Grades 7-8 | Catholic | 275 | 59.2 Top 50% | 275 Enrolment | 275 |
| 15 | St Peter's School Cornwall · Elementary · Grades JK-6 | Catholic | 265 | 52.1 Top 50% | 78% EQAO Grade 6 | 265 |
| 16 | St Anne's School Cornwall · Elementary · Grades JK-6 | Catholic | 260 | 52.6 Top 50% | 69.7% EQAO Grade 6 | 260 |
| 17 | St Lawrence Intermediate School Cornwall · Elementary · Grades 7-8 | Public | 205 | 8.7 Lower 50% | 205 Enrolment | 205 |
| 18 | École secondaire publique L'Héritage Cornwall · Secondary · Grades 9-12 | Public | 195 | 50.9 Top 50% | 95% OSSLT pass rate | 195 |
| 19 | École intermédiaire catholique La Citadelle Cornwall · Elementary · Grades 7-8 | Catholic | 195 | 26.1 Lower 50% | 195 Enrolment | 195 |
| 20 | Cornwall Intermediate School Cornwall · Elementary · Grades 7-8 | Public | 165 | 21.5 Lower 50% | 165 Enrolment | 165 |
| 21 | École élémentaire publique L'Héritage Cornwall · Elementary · Grades 7-8 | Public | 125 | 59.2 Top 50% | 125 Enrolment | 125 |
St Joseph's Secondary School in Cornwall leads the 2025 list of largest schools in Cornwall with Enrolment 745. Of the 21 schools shown, 11 are public, 10 are catholic.
For the full picture see the wider Ontario largest schools rankings, every school on the Cornwall page, or the comparison tool to put a shortlist side by side.
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Frequently asked questions
What is the best largest school in Cornwall?
St Joseph's Secondary School in Cornwall, Ontario ranks first among largest schools in Cornwall with Enrolment 745 (Enrolment: 745).
How are largest schools in Cornwall ranked?
Schools with the highest enrolment. Only schools eligible for the Success Index (Canada) are included; the index is shown alongside for context.
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.