Blessed Trinity Catholic Secondary School
🇨🇦 Official data · 2025Grimsby, Ontario L3M5J6 · Niagara CDSB
#96 of 766 secondary schools in Ontario
#96 of 766 nationally
About Blessed Trinity Catholic Secondary School
Blessed Trinity Catholic Secondary School is a catholic secondary located in Grimsby, in the Niagara CDSB school board or district of Ontario, Canada. It caters for Grades 9-12. In 2025 it enrolled 1,085 students. Publicly funded Catholic (separate) school boards in Ontario; free to attend.
Its Success Index (Canada) is 77.5 out of 100, placing it in the top 25% of secondary schools in Canada and 96th of 766 ranked secondary schools in Ontario. Its strongest component is community advantage (fewer low-income households) (92th percentile), and its weakest is eqao grade 9 mathematics (68th percentile).
Other published figures: enrolment 1,085; first language not english 8%; special education 19%; identified as gifted 1%.
There are 12 schools in Grimsby; Blessed Trinity Catholic Secondary School ranks 6th of 9 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%)63%
- OSSLT first-attempt pass rate (20%)94%
- FSA literacy score (25%)–
- FSA numeracy score (25%)–
- Community advantage (fewer low-income households) (10%)4%
- 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 Blessed Trinity Catholic Secondary School by the official sources.
- Enrolment
- 1,085
- Students enrolled in the latest published year.
- EQAO Grade 9 maths
- 63%
- % 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
- 4%
- % 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
- 19%
- % of students receiving special education services.
- Identified as gifted
- 1%
- % of students identified as gifted.
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Schools near Blessed Trinity Catholic Secondary School
Closest schools by straight-line distance, with their Success Index (Canada).
Central Public School
Grimsby · Public elementary · Grades 1-8
600 students · 1.1 km away
Our Lady of Fatima Catholic Elementary School
Grimsby · Catholic elementary · Grades JK-8
530 students · 1.3 km away
Lakeview Public School
Grimsby · Public elementary · Grades JK-8
425 students · 1.6 km away
St Joseph Catholic Elementary School
Grimsby · Catholic elementary · Grades JK-8
225 students · 1.9 km away
Nelles Public School
Grimsby · Public elementary · Grades JK-8
290 students · 2.6 km away
Smith Public School
Grimsby · Public elementary · Grades JK-8
360 students · 2.9 km away
Park Public School
Grimsby · Public elementary · Grades JK-6
110 students · 3.9 km away
Grand Avenue Public School
Grimsby · Public elementary · Grades JK-8
220 students · 4.4 km away
St. Gabriel Catholic Elementary School
Stoney Creek · Catholic elementary · Grades JK-8
525 students · 5.3 km away
West Niagara Secondary School
Lincoln · Public secondary · Grades 9-12
1,655 students · 5.7 km away
Similar schools
Catholic secondary schools in Ontario with a comparable Enrolment.
St Martin Secondary School
Mississauga · Catholic secondary · Grades 9-12
1,090 students
St David Catholic Secondary School
Waterloo · Catholic secondary · Grades 9-12
1,080 students
St James Catholic School
Guelph · Catholic secondary · Grades 9-12
1,080 students
St. Michael's Adult High School
Windsor · Catholic alternative · Grades 9-12
1,095 students
Assumption Catholic Secondary School
Burlington · Catholic secondary · Grades 9-12
1,070 students
Notre Dame Catholic Secondary School
Ajax · Catholic secondary · Grades 9-12
1,065 students
Frequently asked questions
Is Blessed Trinity Catholic Secondary School a good school?
Blessed Trinity Catholic Secondary School has a Success Index (Canada) of 77.5 out of 100 (Top 25% of secondary schools in Canada) and ranks #96 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 Blessed Trinity Catholic Secondary School rank in Ontario?
Blessed Trinity Catholic Secondary School ranks #96 of 766 secondary schools in Ontario and #96 of 766 nationally on the Success Index (Canada) (2025 data).
How many students attend Blessed Trinity Catholic Secondary School?
Blessed Trinity Catholic Secondary School had 1,085 students in 2025.
Is Blessed Trinity Catholic Secondary School a elementary school or a secondary school?
Blessed Trinity Catholic Secondary School is classified as a secondary covering Grades 9-12. It is a catholic school.
What other schools are near Blessed Trinity Catholic Secondary School?
There are 10 schools within 15 km of Blessed Trinity Catholic Secondary School; they are listed on this page with their Success Index (Canada) and distance, and can be compared side by side.