St Thomas Aquinas Secondary School
🇨🇦 Official data · 2025London, Ontario N6H1W2 · London District Catholic School Board
#116 of 766 secondary schools in Ontario
#116 of 766 nationally
About St Thomas Aquinas Secondary School
St Thomas Aquinas Secondary School is a catholic secondary located in London, in the London District Catholic School Board school board or district of Ontario, Canada. It caters for Grades 9-12. In 2025 it enrolled 1,425 students. Publicly funded Catholic (separate) school boards in Ontario; free to attend.
Its Success Index (Canada) is 75.5 out of 100, placing it in the top 25% of secondary schools in Canada and 116th of 766 ranked secondary schools in Ontario. Its strongest component is osslt first-attempt pass rate (86th percentile), and its weakest is eqao grade 9 mathematics (70th percentile).
Other published figures: enrolment 1,425; first language not english 8%; special education 16%; identified as gifted 1%.
There are 150 schools in London; St Thomas Aquinas Secondary School ranks 15th of 120 scored schools there.
Success Index (Canada) breakdown
Each component is a percentile against secondary schools across Canada.
- EQAO Grade 3 (reading, writing, maths) (20%)–
- EQAO Grade 6 (reading, writing, maths) (25%)–
- EQAO Grade 9 mathematics (25%)64%
- OSSLT first-attempt pass rate (20%)94%
- FSA literacy score (25%)–
- FSA numeracy score (25%)–
- Community advantage (fewer low-income households) (10%)6%
- Parent education (fewer parents without a credential) (10%)2%
The Success Index (Canada) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for St Thomas Aquinas Secondary School by the official sources.
- Enrolment
- 1,425
- Students enrolled in the latest published year.
- EQAO Grade 9 maths
- 64%
- % at or above the provincial standard in Grade 9 mathematics.
- OSSLT pass rate
- 94%
- % passing the Grade 10 literacy test on the first attempt.
- Low-income households
- 6%
- % of students living in low-income households.
- Parents without a credential
- 2%
- % of students whose parents have no degree, diploma or certificate.
- First language not English
- 8%
- % of students whose first language is not English.
- Special education
- 16%
- % of students receiving special education services.
- Identified as gifted
- 1%
- % of students identified as gifted.
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Schools near St Thomas Aquinas Secondary School
Closest schools by straight-line distance, with their Success Index (Canada).
John Dearness Public School
London · Public elementary · Grades JK-8
280 students · 547 m away
École élémentaire Marie-Curie
London · Public elementary · Grades JK-6
240 students · 831 m away
Byron Northview Public School
London · Public elementary · Grades JK-8
575 students · 925 m away
St George Separate School
London · Catholic elementary · Grades JK-8
280 students · 1.6 km away
St Paul Separate School
London · Catholic elementary · Grades JK-8
405 students · 1.6 km away
West Oaks French Immersion Public School
London · Public elementary · Grades JK-8
385 students · 1.7 km away
Oakridge Secondary School
London · Public secondary · Grades 9-12
1,045 students · 1.9 km away
Clara Brenton Public School
London · Public elementary · Grades JK-8
675 students · 2.0 km away
Byron Southwood Public School
London · Public elementary · Grades JK-8
540 students · 2.1 km away
St. Nicholas Senior Separate School
London · Catholic elementary · Grades JK-8
545 students · 2.2 km away
Similar schools
Catholic secondary schools in Ontario with a comparable Enrolment.
St Thomas Aquinas Secondary School
Brampton · Catholic secondary · Grades 9-12
1,425 students
St. Roch Catholic Secondary School
Brampton · Catholic secondary · Grades 9-12
1,425 students
Notre Dame Catholic Secondary School
Brampton · Catholic secondary · Grades 9-12
1,410 students
St John's College
Brantford · Catholic secondary · Grades 9-12
1,405 students
Father Bressani Catholic High School
Woodbridge · Catholic secondary · Grades 9-12
1,405 students
Bishop Allen Academy Catholic Secondary School
Toronto · Catholic secondary · Grades 9-12
1,460 students
Frequently asked questions
Is St Thomas Aquinas Secondary School a good school?
St Thomas Aquinas Secondary School has a Success Index (Canada) of 75.5 out of 100 (Top 25% of secondary schools in Canada) and ranks #116 of 766 in Ontario. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does St Thomas Aquinas Secondary School rank in Ontario?
St Thomas Aquinas Secondary School ranks #116 of 766 secondary schools in Ontario and #116 of 766 nationally on the Success Index (Canada) (2025 data).
How many students attend St Thomas Aquinas Secondary School?
St Thomas Aquinas Secondary School had 1,425 students in 2025.
Is St Thomas Aquinas Secondary School a elementary school or a secondary school?
St Thomas Aquinas Secondary School is classified as a secondary covering Grades 9-12. It is a catholic school.
What other schools are near St Thomas Aquinas Secondary School?
There are 10 schools within 15 km of St Thomas Aquinas Secondary School; they are listed on this page with their Success Index (Canada) and distance, and can be compared side by side.