Best schools in Ontario (2025)
The top five of 6,618 schools in each category, with links to the full top 100. Rankings use the Success Index (Canada), built only from official Canadian data.
Ontario has 6,618 schools educating 2,085,195 students in 2025: 3,256 public, 1,694 catholic, 1,668 private.
The median Enrolment across Ontario is 365. Students enrolled in the latest published year.
Browse every school in Ontario →
Best elementary schools in Ontario
Elementary and combined elementary–secondary schools.
Nelles Public School
Grimsby · Public elementary · Grades JK-8
290 students
École élémentaire catholique Saint-Guillaume
Vars · Catholic elementary · Grades JK-8
205 students
St Edmund Separate School
Mississauga · Catholic elementary · Grades JK-8
400 students
Gainsborough Central Public School
St Anns · Public elementary · Grades JK-8
170 students
Jacob Beam Public School
Beamsville · Public elementary · Grades JK-8
395 students
Best secondary schools in Ontario
Secondary (high) schools and combined schools.
St Michael's Choir (Sr) School
Toronto · Catholic secondary · Grades 9-12
105 students
Ernest C Drury School for the Deaf
Milton · Public secondary · Grades 9-12
75 students
W Ross Macdonald Provincial Secondary School
Brantford · Public secondary · Grades 9-12
80 students
École secondaire catholique Paul-Desmarais
Ottawa · Catholic secondary · Grades 9-12
880 students
École secondaire publique L'Académie de la Seigneurie
Casselman · Public secondary · Grades 9-12
155 students
Best public schools in Ontario
Publicly funded schools run by public boards or districts.
Ernest C Drury School for the Deaf
Milton · Public secondary · Grades 9-12
75 students
W Ross Macdonald Provincial Secondary School
Brantford · Public secondary · Grades 9-12
80 students
Nelles Public School
Grimsby · Public elementary · Grades JK-8
290 students
Gainsborough Central Public School
St Anns · Public elementary · Grades JK-8
170 students
Jacob Beam Public School
Beamsville · Public elementary · Grades JK-8
395 students
Best catholic schools in Ontario
Publicly funded Catholic schools (Ontario).
St Michael's Choir (Sr) School
Toronto · Catholic secondary · Grades 9-12
105 students
École élémentaire catholique Saint-Guillaume
Vars · Catholic elementary · Grades JK-8
205 students
St Edmund Separate School
Mississauga · Catholic elementary · Grades JK-8
400 students
École secondaire catholique Paul-Desmarais
Ottawa · Catholic secondary · Grades 9-12
880 students
École secondaire catholique Sainte-Marie-Rivier
Kingston · Catholic secondary · Grades 9-12
165 students
Best french-language schools in Ontario
French-language public and Catholic schools (Ontario).
École élémentaire catholique Saint-Guillaume
Vars · Catholic elementary · Grades JK-8
205 students
École secondaire catholique Paul-Desmarais
Ottawa · Catholic secondary · Grades 9-12
880 students
École secondaire publique L'Académie de la Seigneurie
Casselman · Public secondary · Grades 9-12
155 students
École secondaire catholique Sainte-Marie-Rivier
Kingston · Catholic secondary · Grades 9-12
165 students
École élémentaire catholique Curé-Labrosse
St-Eugène · Catholic elementary · Grades JK-6
110 students
Best elementary schools by eqao results in Ontario
Ontario elementary schools ranked by Grade 6 EQAO results (average of reading, writing and mathematics at or above the provincial standard).
Cottingham Junior Public School
Toronto · Public elementary · Grades JK-6
140 students
École élémentaire catholique Coeur d'Ottawa
Ottawa · Catholic elementary · Grades JK-8
195 students
École élémentaire Dyane-Adam
Milton · Public elementary · Grades JK-8
155 students
ÉÉC Sainte-Marguerite-Bourgeoys-Markham
Markham · Catholic elementary · Grades JK-8
175 students
Plymouth Public School
Welland · Public elementary · Grades JK-8
460 students
Best secondary schools by eqao results in Ontario
Ontario secondary schools ranked by the OSSLT first-attempt pass rate, with Grade 9 mathematics as the tiebreaker.
St Michael's Choir (Sr) School
Toronto · Catholic secondary · Grades 9-12
105 students
Collège français secondaire
Toronto · Public secondary · Grades 9-12
155 students
ÉSC Pape-François
Stouffville · Catholic secondary · Grades 9-12
55 students
École secondaire Toronto Ouest
Toronto · Public secondary · Grades 9-12
195 students
École secondaire Michelle-O'Bonsawin
Toronto · Public secondary · Grades 9-12
100 students
Best largest schools in Ontario
Schools with the highest enrolment.
Bishop Paul Francis Reding Catholic Secondary School
Milton · Catholic secondary · Grades 9-12
2,660 students
St Mary's High School
Kitchener · Catholic secondary · Grades 9-12
2,240 students
White Oaks Secondary School
Oakville · Public secondary · Grades 9-12
2,180 students
Earl Haig Secondary School
North York · Public secondary · Grades 9-12
2,175 students
Bishop Ryan Catholic Secondary School
Hannon · Catholic secondary · Grades 9-12
2,115 students
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Frequently asked questions
What is the best elementary school in Ontario?
Nelles Public School in Grimsby ranks first among elementary schools in Ontario with a Success Index (Canada) of 94.9 out of 100 (Enrolment: 290).
How are elementary schools in Ontario 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.