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Best secondary schools in Halton CDSB (2025)

Secondary (high) schools and combined schools. Ranked by the Success Index (Canada) from official Canadian data; 10 schools in Halton CDSB, Ontario. Rank positions shown on each profile are within Canada and Ontario.

  1. 1
    89
    Corpus Christi Catholic Secondary SchoolBurlington · Catholic Secondary92% OSSLT pass rate · 1,140 students
  2. 2
    79
    St. Kateri Tekakwitha Catholic Secondary Catholic SchoolMilton · Catholic Secondary89% OSSLT pass rate · 880 students
  3. 3
    76
    Bishop Paul Francis Reding Catholic Secondary SchoolMilton · Catholic Secondary92% OSSLT pass rate · 2,660 students
  4. 4
    75
    Notre Dame Catholic Secondary SchoolBurlington · Catholic Secondary88% OSSLT pass rate · 1,030 students
  5. 5
    74
    St. Thomas Aquinas Catholic Secondary SchoolOakville · Catholic Secondary89% OSSLT pass rate · 1,310 students
  6. 6
    71
    Assumption Catholic Secondary SchoolBurlington · Catholic Secondary89% OSSLT pass rate · 1,070 students
  7. 7
    70
    St. Ignatius of Loyola Catholic Secondary SchoolOakville · Catholic Secondary84% OSSLT pass rate · 1,300 students
  8. 8
    70
    Holy Trinity Catholic Secondary SchoolOakville · Catholic Secondary88% OSSLT pass rate · 1,775 students
  9. 9
    63
    Christ the King Catholic Secondary SchoolGeorgetown · Catholic Secondary84% OSSLT pass rate · 1,545 students
  10. 10
    58
    St. Francis Xavier Catholic Secondary SchoolMilton · Catholic Secondary85% OSSLT pass rate · 1,770 students

Corpus Christi Catholic Secondary School in Burlington leads the 2025 list of secondary schools in Halton CDSB with a Success Index (Canada) of 88.8. Of the 10 schools shown, 10 are catholic.

For the full picture see the wider Ontario secondary schools rankings, every school on the Halton CDSB page, or the comparison tool to put a shortlist side by side.

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Frequently asked questions

What is the best secondary school in Halton CDSB?

Corpus Christi Catholic Secondary School in Burlington, Ontario ranks first among secondary schools in Halton CDSB with a Success Index (Canada) of 88.8 out of 100 (Enrolment: 1,140).

How are secondary schools in Halton CDSB ranked?

Each school's Success Index (Canada) combines 8 factors: eqao grade 3 (reading, writing, maths) (20%), eqao grade 6 (reading, writing, maths) (25%), 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%), parent education (fewer parents without a credential) (10%). Each factor is a percentile against schools of the same type across Canada. Schools with fewer than 60 students are excluded from rankings.

Are these 2025 rankings official?

No. They are computed by Success Tutoring from official Canadian data (Ontario – School information and student demographics; BC Data Catalogue – Foundation Skills Assessment). Provinces publish different assessments, so scores are comparable within a province, not between provinces.