YORK REGION / SCHOOL GUIDES
Top 10 public secondary schools in York Region
Compare the highest Fraser academic scores among 34 rated public secondary schools (high schools) in York Region. Explore official school information, admission guidance and new homes in each municipality.
The Fraser Institute score measures selected academic indicators. It is one starting point for research, not a complete assessment of teaching, student support, wellbeing or school fit.
Equal scores share a regional position. To display ten profiles, ties are ordered alphabetically by the current common school name, ignoring the French École prefix. A tied school outside the ten-profile selection is named on the relevant list; it is not academically lower-ranked.
List coverage. English- and French-language schools are included in the regional comparison. Schools without a score in this report are not ranked here.
How we compiled this list- Display position 01
Markham · English; French Immersion pathway
Pierre Elliott Trudeau High School
York Region District School Board
Grades 9–12
- Display position 02
- Display position 03
- Display position 04
- Display position 05
- Display position 06
Thornhill · Markham · English; French Immersion pathway
Thornlea Secondary School
York Region District School Board
Grades 9–12
- Display position 07
Unionville · Markham · English
Milliken Mills High School
York Region District School Board
Grades 9–12
- Display position 08
- Display position 09
Newmarket · English; French Immersion pathway
Newmarket High School
York Region District School Board
Grades 9–12
- Display position 10
Aurora · English; French Immersion pathway
Aurora High School
York Region District School Board
Grades 9–12
BEFORE YOUR NEXT MOVE
Your questions,
answered.
How were these public secondary schools selected?
This list follows scores in the 2025 Fraser Institute report for the 2023/2024 school year. We checked all 294 rated public and Catholic schools located within York Region’s nine municipalities: 158 public elementary, 34 public secondary, 84 Catholic elementary and 18 Catholic secondary. The census includes 10 French-language school records. Public and Catholic schools are compared separately. Unrated schools are not treated as lower-rated schools. Regional positions are calculated by Offplan Canada from the published scores; they are not a separate Fraser Institute regional ranking. Equal scores share a regional position. To display ten profiles, ties are ordered alphabetically by the current common school name, ignoring the French École prefix. A tied school outside the ten-profile selection is named on the relevant list; it is not academically lower-ranked.
Does a higher score guarantee the best school for my child?
The Fraser Institute score measures selected academic indicators. It is one starting point for research, not a complete assessment of teaching, student support, wellbeing or school fit. Consider programs, learning support, travel arrangements and your child’s needs alongside the academic results.
Are the linked new home developments inside these school boundaries?
The developments on each school guide are grouped by municipality. They are not represented as inside the school’s attendance boundary or as eligible for admission. Confirm the exact home address and registration requirements with the school board.
UNDERSTAND THE COMPARISON
A useful starting point. A broader decision.
These lists order schools by their overall Fraser Institute score in the 2025 Ontario reports, using 2023/2024 results. The elementary report was released in January 2026 and the secondary report in November 2025. These are historical academic results, not 2026 test scores.
The Fraser Institute score measures selected academic indicators. It is one starting point for research, not a complete assessment of teaching, student support, wellbeing or school fit.
Coverage. We checked all 294 rated public and Catholic schools located within York Region’s nine municipalities: 158 public elementary, 34 public secondary, 84 Catholic elementary and 18 Catholic secondary. The census includes 10 French-language school records. Public and Catholic schools are compared separately. Unrated schools are not treated as lower-rated schools. Regional positions are calculated by Offplan Canada from the published scores; they are not a separate Fraser Institute regional ranking.
Ties. Equal scores share a regional position. To display ten profiles, ties are ordered alphabetically by the current common school name, ignoring the French École prefix. A tied school outside the ten-profile selection is named on the relevant list; it is not academically lower-ranked.
Methodology source checked October 3, 2026.
Use the board’s current boundary and registration information, visit the school and discuss your child’s needs before making a school or home decision.