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Catholic schoolSecondaryGrades 9-12

St Robert Catholic High School

🇨🇦 Official data · 2025Thornhill, Ontario L3T7P4 · York CDSB

83.8/ 100
Success Index (Canada)
Top 10%

#47 of 766 secondary schools in Ontario
#47 of 766 nationally

How is this calculated?
Students
1,705
Enrolment
1,705
EQAO Grade 9 maths
92%
Source: EQAO
OSSLT pass rate
96%
Source: EQAO

About St Robert Catholic High School

St Robert Catholic High School is a catholic secondary located in Thornhill, in the York CDSB school board or district of Ontario, Canada. It caters for Grades 9-12. In 2025 it enrolled 1,705 students. Publicly funded Catholic (separate) school boards in Ontario; free to attend.

Its Success Index (Canada) is 83.8 out of 100, placing it in the top 10% of secondary schools in Canada and 47th of 766 ranked secondary schools in Ontario. Its strongest component is eqao grade 9 mathematics (100th percentile), and its weakest is community advantage (fewer low-income households) (41th percentile).

Other published figures: enrolment 1,705; first language not english 58%; special education 6%; identified as gifted 1%.

There are 63 schools in Thornhill; St Robert Catholic High School ranks 7th of 34 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%)92%
  • OSSLT first-attempt pass rate (20%)96%
  • FSA literacy score (25%)–
  • FSA numeracy score (25%)–
  • Community advantage (fewer low-income households) (10%)10%
  • 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 Robert Catholic High School by the official sources.

Enrolment
1,705
Students enrolled in the latest published year.
EQAO Grade 9 maths
92%
% at or above the provincial standard in Grade 9 mathematics.
OSSLT pass rate
96%
% passing the Grade 10 literacy test on the first attempt.
Low-income households
10%
% 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
58%
% of students whose first language is not English.
Special education
6%
% of students receiving special education services.
Identified as gifted
1%
% of students identified as gifted.

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Schools near St Robert Catholic High School

Closest schools by straight-line distance, with their Success Index (Canada).

Similar schools

Catholic secondary schools in Ontario with a comparable Enrolment.

Frequently asked questions

Is St Robert Catholic High School a good school?

St Robert Catholic High School has a Success Index (Canada) of 83.8 out of 100 (Top 10% of secondary schools in Canada) and ranks #47 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 Robert Catholic High School rank in Ontario?

St Robert Catholic High School ranks #47 of 766 secondary schools in Ontario and #47 of 766 nationally on the Success Index (Canada) (2025 data).

How many students attend St Robert Catholic High School?

St Robert Catholic High School had 1,705 students in 2025.

Is St Robert Catholic High School a elementary school or a secondary school?

St Robert Catholic High School is classified as a secondary covering Grades 9-12. It is a catholic school.

What other schools are near St Robert Catholic High School?

There are 10 schools within 15 km of St Robert Catholic High School; they are listed on this page with their Success Index (Canada) and distance, and can be compared side by side.