St Augustine Catholic High School
#60 of 766 secondary schools in Ontario
#60 of 766 nationally
About St Augustine Catholic High School
St Augustine Catholic High School is a catholic secondary located in Markham, in the York CDSB school board or district of Ontario, Canada. It caters for Grades 9-12. In 2025 it enrolled 1,575 students. Publicly funded Catholic (separate) school boards in Ontario; free to attend.
Its Success Index (Canada) is 81.8 out of 100, placing it in the top 10% of secondary schools in Canada and 60th 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) (28th percentile).
Other published figures: enrolment 1,575; first language not english 36%; special education 12%; identified as gifted 0%.
There are 135 schools in Markham; St Augustine Catholic High School ranks 7th of 60 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%)97%
- OSSLT first-attempt pass rate (20%)96%
- FSA literacy score (25%)–
- FSA numeracy score (25%)–
- Community advantage (fewer low-income households) (10%)11%
- 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 Augustine Catholic High School by the official sources.
- Enrolment
- 1,575
- Students enrolled in the latest published year.
- EQAO Grade 9 maths
- 97%
- % 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
- 11%
- % 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
- 36%
- % of students whose first language is not English.
- Special education
- 12%
- % of students receiving special education services.
- Identified as gifted
- 0%
- % of students identified as gifted.
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Schools near St Augustine Catholic High School
Closest schools by straight-line distance, with their Success Index (Canada).
Ashton Meadows Public School
Markham · Public elementary · Grades JK-8
380 students · 288 m away
St Monica Catholic Elementary School
Buttonville · Catholic elementary · Grades JK-8
370 students · 416 m away
Lincoln Alexander Public School
Markham · Public elementary · Grades JK-8
425 students · 873 m away
Buttonville Public School
Markham · Public elementary · Grades JK-8
525 students · 1.2 km away
ÉÉC Sainte-Marguerite-Bourgeoys-Markham
Markham · Catholic elementary · Grades JK-8
175 students · 1.2 km away
St Justin Martyr Catholic Elementary School
Unionville · Catholic elementary · Grades JK-8
675 students · 1.4 km away
Coledale Public School
Markham · Public elementary · Grades JK-8
605 students · 1.6 km away
Nokiidaa Public School
Markham · Public elementary · Grades JK-8
485 students · 2.1 km away
Sir Wilfrid Laurier Public School
Markham · Public elementary · Grades JK-8
670 students · 2.1 km away
Unionville High School
Unionville · Public secondary · Grades 9-12
1,865 students · 2.5 km away
Similar schools
Catholic secondary schools in Ontario with a comparable Enrolment.
St Theresa of Lisieux Catholic High School
Richmond Hill · Catholic secondary · Grades 9-12
1,590 students
Robert F Hall Catholic Secondary School
Caledon East · Catholic secondary · Grades 9-12
1,595 students
Sacred Heart High School
Stittsville · Catholic secondary · Grades 9-12
1,555 students
Christ the King Catholic Secondary School
Georgetown · Catholic secondary · Grades 9-12
1,545 students
St. Jean de Brebeuf Catholic Secondary School
Hamilton · Catholic secondary · Grades 9-12
1,615 students
St Joseph High School
Nepean · Catholic secondary · Grades 9-12
1,535 students
Frequently asked questions
Is St Augustine Catholic High School a good school?
St Augustine Catholic High School has a Success Index (Canada) of 81.8 out of 100 (Top 10% of secondary schools in Canada) and ranks #60 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 Augustine Catholic High School rank in Ontario?
St Augustine Catholic High School ranks #60 of 766 secondary schools in Ontario and #60 of 766 nationally on the Success Index (Canada) (2025 data).
How many students attend St Augustine Catholic High School?
St Augustine Catholic High School had 1,575 students in 2025.
Is St Augustine Catholic High School a elementary school or a secondary school?
St Augustine Catholic High School is classified as a secondary covering Grades 9-12. It is a catholic school.
What other schools are near St Augustine Catholic High School?
There are 10 schools within 15 km of St Augustine Catholic High School; they are listed on this page with their Success Index (Canada) and distance, and can be compared side by side.