Ajax High School
🇨🇦 Official data · 2025Ajax, Ontario L1S1P2 · Durham DSB
#333 of 766 secondary schools in Ontario
#333 of 766 nationally
About Ajax High School
Ajax High School is a public secondary located in Ajax, in the Durham DSB school board or district of Ontario, Canada. It caters for Grades 9-12. In 2025 it enrolled 1,330 students. Publicly funded schools run by public school boards or districts; free to attend.
Its Success Index (Canada) is 54.1 out of 100, placing it in the top 50% of secondary schools in Canada and 333rd of 766 ranked secondary schools in Ontario. Its strongest component is community advantage (fewer low-income households) (84th percentile), and its weakest is eqao grade 9 mathematics (34th percentile).
Other published figures: enrolment 1,330; first language not english 25%; special education 21%; identified as gifted 1%.
There are 50 schools in Ajax; Ajax High School ranks 23rd of 39 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%)48%
- OSSLT first-attempt pass rate (20%)87%
- FSA literacy score (25%)–
- FSA numeracy score (25%)–
- Community advantage (fewer low-income households) (10%)5%
- 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 Ajax High School by the official sources.
- Enrolment
- 1,330
- Students enrolled in the latest published year.
- EQAO Grade 9 maths
- 48%
- % at or above the provincial standard in Grade 9 mathematics.
- OSSLT pass rate
- 87%
- % 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
- 2%
- % of students whose parents have no degree, diploma or certificate.
- First language not English
- 25%
- % of students whose first language is not English.
- Special education
- 21%
- % of students receiving special education services.
- Identified as gifted
- 1%
- % 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 Ajax High School
Closest schools by straight-line distance, with their Success Index (Canada).
St Bernadette Catholic School
Ajax · Catholic elementary · Grades JK-8
615 students · 192 m away
Bolton C Falby Public School
Ajax · Public elementary · Grades JK-8
795 students · 365 m away
Carruthers Creek Public School
Ajax · Public elementary · Grades JK-8
810 students · 887 m away
Southwood Park Public School
Ajax · Public elementary · Grades JK-8
725 students · 1.2 km away
Archbishop Denis O'Connor Catholic High School
Ajax · Catholic secondary · Grades 9-12
710 students · 1.6 km away
Ontario Street Public School
Ajax · Public elementary · Grades JK-8
215 students · 1.7 km away
Cadarackque Public School
Ajax · Public elementary · Grades JK-8
640 students · 1.9 km away
St James Catholic School
Ajax · Catholic elementary · Grades JK-8
465 students · 2.0 km away
Father Donald MacLellan Catholic Elementary School
Ajax · Catholic elementary · Grades 7-8
· 2.0 km away
ÉÉC Notre-Dame-de-la-Jeunesse-Ajax
Ajax · Catholic elementary · Grades JK-6
220 students · 2.1 km away
Similar schools
Public secondary schools in Ontario with a comparable Enrolment.
Nelson High School
Burlington · Public secondary · Grades 9-12
1,330 students
Etobicoke Collegiate Institute
Etobicoke · Public secondary · Grades 9-12
1,330 students
Turner Fenton Secondary School
Brampton · Public secondary · Grades 9-12
1,325 students
Sir Wilfrid Laurier Collegiate Institute
Toronto · Public secondary · Grades 9-12
1,325 students
Dr. Frank J. Hayden Secondary School
Burlington · Public secondary · Grades 9-12
1,315 students
Glebe Collegiate Institute
Ottawa · Public secondary · Grades 9-12
1,315 students
Frequently asked questions
Is Ajax High School a good school?
Ajax High School has a Success Index (Canada) of 54.1 out of 100 (Top 50% of secondary schools in Canada) and ranks #333 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 Ajax High School rank in Ontario?
Ajax High School ranks #333 of 766 secondary schools in Ontario and #333 of 766 nationally on the Success Index (Canada) (2025 data).
How many students attend Ajax High School?
Ajax High School had 1,330 students in 2025.
Is Ajax High School a elementary school or a secondary school?
Ajax High School is classified as a secondary covering Grades 9-12. It is a public school.
What other schools are near Ajax High School?
There are 10 schools within 15 km of Ajax High School; they are listed on this page with their Success Index (Canada) and distance, and can be compared side by side.