St Mary's Separate School
🇨🇦 Official data · 2025Chesterville, Ontario K0C1H0 · CDSB of Eastern Ontario
#2497 of 3,871 elementary schools in Ontario
#2497 of 3,871 nationally
About St Mary's Separate School
St Mary's Separate School is a catholic elementary located in Chesterville, in the CDSB of Eastern Ontario school board or district of Ontario, Canada. It caters for Grades JK-6. In 2025 it enrolled 215 students. Publicly funded Catholic (separate) school boards in Ontario; free to attend.
Its Success Index (Canada) is 40.9 out of 100, placing it in the lower 50% of elementary schools in Canada and 2497th of 3,871 ranked elementary schools in Ontario. Its strongest component is community advantage (fewer low-income households) (94th percentile), and its weakest is eqao grade 3 (reading, writing, maths) (9th percentile).
Other published figures: enrolment 215; first language not english 0%; special education 10%; identified as gifted 0%.
There are 4 schools in Chesterville; St Mary's Separate School ranks 3rd of 4 scored schools there.
Success Index (Canada) breakdown
Each component is a percentile against elementary schools across Canada.
- EQAO Grade 3 (reading, writing, maths) (20%)44.7%
- EQAO Grade 6 (reading, writing, maths) (25%)74%
- 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%)0%
- Parent education (fewer parents without a credential) (10%)5%
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's Separate School by the official sources.
- Enrolment
- 215
- Students enrolled in the latest published year.
- EQAO Grade 3
- 44.7%
- Average % at or above the provincial standard in reading, writing and mathematics.
- EQAO Grade 6
- 74%
- Average % at or above the provincial standard in reading, writing and mathematics.
- Low-income households
- 0%
- % of students living in low-income households.
- Parents without a credential
- 5%
- % 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's Separate School
Closest schools by straight-line distance, with their Success Index (Canada).
Chesterville Public School
Chesterville · Public elementary · Grades JK-6
220 students · 398 m away
North Dundas District High School
Chesterville · Public secondary · Grades 9-12
380 students · 4.7 km away
North Dundas Intermediate School
Chesterville · Public elementary · Grades 7-8
195 students · 4.9 km away
Winchester Public School
Winchester · Public elementary · Grades JK-6
285 students · 9.9 km away
École élémentaire catholique Sainte-Thérèse-d'Avila
Marionville · Catholic elementary · Grades JK-8
170 students · 13 km away
École élémentaire catholique Notre-Dame-du-Rosaire
Crysler · Catholic elementary · Grades JK-6
175 students · 14 km away
Similar schools
Catholic elementary schools in Ontario with a comparable Enrolment.
St Gregory Catholic School
Picton · Catholic elementary · Grades JK-8
215 students
St Joseph's Separate School
Toledo · Catholic elementary · Grades JK-8
215 students
ÉÉC Notre-Dame
Hamilton · Catholic elementary · Grades JK-8
215 students
École élémentaire catholique Saint-Jean-Baptiste
L'orignal · Catholic elementary · Grades JK-6
215 students
École élémentaire catholique Saint-Victor
Alfred · Catholic elementary · Grades JK-6
215 students
École catholique St-Dominique
Timmins · Catholic elementary · Grades JK-3
215 students
Frequently asked questions
Is St Mary's Separate School a good school?
St Mary's Separate School has a Success Index (Canada) of 40.9 out of 100 (Lower 50% of elementary schools in Canada) and ranks #2497 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's Separate School rank in Ontario?
St Mary's Separate School ranks #2497 of 3,871 elementary schools in Ontario and #2497 of 3,871 nationally on the Success Index (Canada) (2025 data).
How many students attend St Mary's Separate School?
St Mary's Separate School had 215 students in 2025.
Is St Mary's Separate School a elementary school or a secondary school?
St Mary's Separate School is classified as a elementary covering Grades JK-6. It is a catholic school.
What other schools are near St Mary's Separate School?
There are 6 schools within 15 km of St Mary's Separate School; they are listed on this page with their Success Index (Canada) and distance, and can be compared side by side.