Unionville High School
🇨🇦 Official data · 2025Unionville, Ontario L3R8G5 · York Region DSB
#193 of 766 secondary schools in Ontario
#193 of 766 nationally
About Unionville High School
Unionville High School is a public secondary located in Unionville, in the York Region DSB school board or district of Ontario, Canada. It caters for Grades 9-12. In 2025 it enrolled 1,865 students. Publicly funded schools run by public school boards or districts; free to attend.
Its Success Index (Canada) is 68.1 out of 100, placing it in the top 25% of secondary schools in Canada and 193rd of 766 ranked secondary schools in Ontario. Its strongest component is eqao grade 9 mathematics (98th percentile), and its weakest is community advantage (fewer low-income households) (7th percentile).
Other published figures: enrolment 1,865; first language not english 67%; special education 11%; identified as gifted 3%.
There are 16 schools in Unionville; Unionville High School ranks 5th of 13 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%)88%
- OSSLT first-attempt pass rate (20%)90%
- FSA literacy score (25%)–
- FSA numeracy score (25%)–
- Community advantage (fewer low-income households) (10%)17%
- Parent education (fewer parents without a credential) (10%)4%
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 Unionville High School by the official sources.
- Enrolment
- 1,865
- Students enrolled in the latest published year.
- EQAO Grade 9 maths
- 88%
- % at or above the provincial standard in Grade 9 mathematics.
- OSSLT pass rate
- 90%
- % passing the Grade 10 literacy test on the first attempt.
- Low-income households
- 17%
- % of students living in low-income households.
- Parents without a credential
- 4%
- % of students whose parents have no degree, diploma or certificate.
- First language not English
- 67%
- % of students whose first language is not English.
- Special education
- 11%
- % of students receiving special education services.
- Identified as gifted
- 3%
- % of students identified as gifted.
Free academic assessment
Is your child on track for EQAO and beyond?
Success Tutoring offers personalised English and math tutoring from Kindergarten to Grade 12. Start with a free online assessment and a clear plan for the year ahead.
- Personalised learning plan mapped to the Australian Curriculum
- English & Maths from Kindergarten to Year 12
- Flexible memberships, no lock-in contracts
- Centres across NSW, VIC, QLD, WA, SA and ACT
Schools near Unionville High School
Closest schools by straight-line distance, with their Success Index (Canada).
Coledale Public School
Markham · Public elementary · Grades JK-8
605 students · 863 m away
St Justin Martyr Catholic Elementary School
Unionville · Catholic elementary · Grades JK-8
675 students · 1.2 km away
St John XXIII Catholic Elementary School
Unionville · Catholic elementary · Grades JK-8
290 students · 1.2 km away
Buttonville Public School
Markham · Public elementary · Grades JK-8
525 students · 1.7 km away
William Berczy Public School
Unionville · Public elementary · Grades JK-8
565 students · 1.7 km away
ÉÉC Sainte-Marguerite-Bourgeoys-Markham
Markham · Catholic elementary · Grades JK-8
175 students · 1.8 km away
Parkview Public School
Unionville · Public elementary · Grades JK-8
570 students · 2.1 km away
Bill Crothers Secondary School
Unionville · Public secondary · Grades 9-12
1,575 students · 2.1 km away
St Monica Catholic Elementary School
Buttonville · Catholic elementary · Grades JK-8
370 students · 2.2 km away
Ashton Meadows Public School
Markham · Public elementary · Grades JK-8
380 students · 2.4 km away
Similar schools
Public secondary schools in Ontario with a comparable Enrolment.
Mayfield Secondary School
Caledon · Public secondary · Grades 9-12
1,865 students
Bur Oak Secondary School
Markham · Public secondary · Grades 9-12
1,865 students
Pierre Elliott Trudeau High School
Markham · Public secondary · Grades 9-12
1,865 students
Pickering High School
Ajax · Public secondary · Grades 9-12
1,870 students
Fletcher's Meadow Secondary School
Brampton · Public secondary · Grades 9-12
1,870 students
Bayview Secondary School
Richmond Hill · Public secondary · Grades 9-12
1,940 students
Frequently asked questions
Is Unionville High School a good school?
Unionville High School has a Success Index (Canada) of 68.1 out of 100 (Top 25% of secondary schools in Canada) and ranks #193 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 Unionville High School rank in Ontario?
Unionville High School ranks #193 of 766 secondary schools in Ontario and #193 of 766 nationally on the Success Index (Canada) (2025 data).
How many students attend Unionville High School?
Unionville High School had 1,865 students in 2025.
Is Unionville High School a elementary school or a secondary school?
Unionville High School is classified as a secondary covering Grades 9-12. It is a public school.
What other schools are near Unionville High School?
There are 10 schools within 15 km of Unionville High School; they are listed on this page with their Success Index (Canada) and distance, and can be compared side by side.