Public School
Catholic
Catholic
Iona Secondary School
Data from official ON records · Last updated July 11, 2026 · Assessment data: limited
5.7/10
Academic score
9-12
Grades
Catholic
Type
655
Enrollment
Mississauga
City
Dufferin-Peel CDSB
Board
905-823-0136
Phone
Contact & School Information
- Address
- 2170 South Sheridan Way, L5J2M4
- Grades
- 9-12
- Enrollment
- 655 students
- Phone
- 905-823-0136
- Website
- http://www.dpcdsb.org/IONAS
- School Board
- Dufferin-Peel CDSB
Location
Neighbourhood Income
- Average After Tax Income
- $53,700
- Average Total Income
- $69,400
- Median After Tax Income
- $40,800
- Median Total Income
- $45,600
Academic Results
5.7/10
Academic rating
3/10
Provincial decile
Limited
Data quality
How this rating is calculated
We import official provincial assessment results (EQAO) and compute a weighted average of the available test metrics for each school. That raw composite is then converted into a 1–10 decile ranking relative to other ON schools with data in the same year.
- Academic rating — the school's weighted composite score, scaled to 0–10.
- Provincial decile — 10 = top 10% of schools, 1 = bottom 10%.
- Data quality — reflects how many subjects/grades contribute. "Complete" = several assessments; "Partial" = a few; "Limited" = very few.
Missing data does not lower a school's rating. We only display a rating when assessment data is available.
Detailed results
2024-2025 · Grade 9 Math · Mathematics · Grade 9
- pct_meeting_or_exceeding_standard
- 57.0
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