Sydenham High School
🇨🇦 Official data · 2025Sydenham, Ontario K0H2T0 · Limestone DSB
#117 of 766 secondary schools in Ontario
#117 of 766 nationally
About Sydenham High School
Sydenham High School is a public secondary located in Sydenham, in the Limestone DSB school board or district of Ontario, Canada. It caters for Grades 9-12. In 2025 it enrolled 705 students. Publicly funded schools run by public school boards or districts; free to attend.
Its Success Index (Canada) is 75.2 out of 100, placing it in the top 25% of secondary schools in Canada and 117th of 766 ranked secondary schools in Ontario. Its strongest component is parent education (fewer parents without a credential) (93th percentile), and its weakest is osslt first-attempt pass rate (52th percentile).
Other published figures: enrolment 705; first language not english 1%; special education 36%; identified as gifted 1%.
There are 2 schools in Sydenham; Sydenham High School ranks 2nd of 2 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%)71%
- OSSLT first-attempt pass rate (20%)86%
- 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 Sydenham High School by the official sources.
- Enrolment
- 705
- Students enrolled in the latest published year.
- EQAO Grade 9 maths
- 71%
- % at or above the provincial standard in Grade 9 mathematics.
- OSSLT pass rate
- 86%
- % passing the Grade 10 literacy test on the first attempt.
- 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
- 1%
- % of students whose first language is not English.
- Special education
- 36%
- % of students receiving special education services.
- Identified as gifted
- 1%
- % of students identified as gifted.
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Schools near Sydenham High School
Closest schools by straight-line distance, with their Success Index (Canada).
Loughborough Public School
Sydenham · Public elementary · Grades JK-8
420 students · 116 m away
St Patrick Catholic School
Harrowsmith · Catholic elementary · Grades JK-8
245 students · 6.0 km away
Harrowsmith Public School
Harrowsmith · Public elementary · Grades JK-8
370 students · 6.3 km away
Perth Road Public School
Perth Road · Public elementary · Grades JK-8
315 students · 9.3 km away
Elginburg & District Public School
Elginburg · Public elementary · Grades JK-8
250 students · 11 km away
Prince Charles Public School
Verona · Public elementary · Grades JK-8
150 students · 12 km away
Glenburnie Public School
Glenburnie · Public elementary · Grades JK-8
115 students · 14 km away
Similar schools
Public secondary schools in Ontario with a comparable Enrolment.
Walkerville Collegiate Institute
Windsor · Public secondary · Grades 9-12
705 students
St Catharines Collegiate Institute and Vocational School
St Catharines · Public secondary · Grades 9-12
700 students
Thorold Secondary School
Thorold · Public secondary · Grades 9-12
700 students
W. F. Herman Academy Secondary School
Windsor · Public secondary · Grades 9-12
710 students
Westview Freedom Academy Secondary School
Windsor · Public secondary · Grades 9-12
710 students
Arnprior District High School
Arnprior · Public secondary · Grades 9-12
700 students
Frequently asked questions
Is Sydenham High School a good school?
Sydenham High School has a Success Index (Canada) of 75.2 out of 100 (Top 25% of secondary schools in Canada) and ranks #117 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 Sydenham High School rank in Ontario?
Sydenham High School ranks #117 of 766 secondary schools in Ontario and #117 of 766 nationally on the Success Index (Canada) (2025 data).
How many students attend Sydenham High School?
Sydenham High School had 705 students in 2025.
Is Sydenham High School a elementary school or a secondary school?
Sydenham High School is classified as a secondary covering Grades 9-12. It is a public school.
What other schools are near Sydenham High School?
There are 7 schools within 15 km of Sydenham High School; they are listed on this page with their Success Index (Canada) and distance, and can be compared side by side.