St Mary Catholic School
🇨🇦 Official data · 2025Shannonville, Ontario K0K3A0 · Algonquin and Lakeshore CDSB
#964 of 3,871 elementary schools in Ontario
#964 of 3,871 nationally
About St Mary Catholic School
St Mary Catholic School is a catholic elementary located in Shannonville, in the Algonquin and Lakeshore CDSB school board or district of Ontario, Canada. It caters for Grades JK-8. In 2025 it enrolled 140 students. Publicly funded Catholic (separate) school boards in Ontario; free to attend.
Its Success Index (Canada) is 67.2 out of 100, placing it in the top 25% of elementary schools in Canada and 964th of 3,871 ranked elementary schools in Ontario. Its strongest component is parent education (fewer parents without a credential) (79th percentile), and its weakest is eqao grade 3 (reading, writing, maths) (58th percentile).
Other published figures: enrolment 140; first language not english 0%; special education 10%; identified as gifted 0%.
There are 2 schools in Shannonville; St Mary Catholic School ranks 2nd of 2 scored schools there.
Success Index (Canada) breakdown
Each component is a percentile against elementary schools across Canada.
- EQAO Grade 3 (reading, writing, maths) (20%)71.7%
- 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%)5%
- Parent education (fewer parents without a credential) (10%)0%
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 Mary Catholic School by the official sources.
- Enrolment
- 140
- Students enrolled in the latest published year.
- EQAO Grade 3
- 71.7%
- Average % at or above the provincial standard in reading, writing and mathematics.
- Low-income households
- 5%
- % of students living in low-income households.
- Parents without a credential
- 0%
- % of students whose parents have no degree, diploma or certificate.
- First language not English
- 0%
- % of students whose first language is not English.
- Special education
- 10%
- % of students receiving special education services.
- Identified as gifted
- 0%
- % of students identified as gifted.
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Schools near St Mary Catholic School
Closest schools by straight-line distance, with their Success Index (Canada).
Tyendinaga Public School
Shannonville · Public elementary · Grades JK-8
380 students · 9.5 km away
Holy Name of Mary Catholic School
Marysville · Catholic elementary · Grades JK-8
140 students · 11 km away
Harmony Public School
Corbyville · Public elementary · Grades JK-8
720 students · 15 km away
Similar schools
Catholic elementary schools in Ontario with a comparable Enrolment.
Holy Name of Mary Catholic School
Marysville · Catholic elementary · Grades JK-8
140 students
Sacred Heart Catholic School
Marmora · Catholic elementary · Grades JK-8
140 students
St. Cecilia's School
Port Dover · Catholic elementary · Grades JK-8
140 students
ÉIC Monseigneur-de-Charbonnel
Toronto · Catholic elementary · Grades 7-8
140 students
ÉÉC Immaculée-Conception
St Catharines · Catholic elementary · Grades JK-8
140 students
ÉÉC Saint-Noël-Chabanel-Toronto
Etobicoke · Catholic elementary · Grades JK-6
140 students
Frequently asked questions
Is St Mary Catholic School a good school?
St Mary Catholic School has a Success Index (Canada) of 67.2 out of 100 (Top 25% of elementary schools in Canada) and ranks #964 of 3,871 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 Mary Catholic School rank in Ontario?
St Mary Catholic School ranks #964 of 3,871 elementary schools in Ontario and #964 of 3,871 nationally on the Success Index (Canada) (2025 data).
How many students attend St Mary Catholic School?
St Mary Catholic School had 140 students in 2025.
Is St Mary Catholic School a elementary school or a secondary school?
St Mary Catholic School is classified as a elementary covering Grades JK-8. It is a catholic school.
What other schools are near St Mary Catholic School?
There are 3 schools within 15 km of St Mary Catholic School; they are listed on this page with their Success Index (Canada) and distance, and can be compared side by side.