Best High Schools in Mississauga: School Rankings
Mississauga has 35 high schools in the latest Fraser Institute report card. The top public school is John Fraser Secondary School at 8.8 out of 10, and the top Catholic school is St. Joseph Secondary School at 8.2. The highest rating overall belongs to Olive Grove School, an independent school, at 9.4.
Below is the full ranking of every Mississauga high school in the report, a closer look at the schools parents ask me about most, and what you need to check before you buy a home for a specific school.
Last updated November 2026. Ratings come from the Fraser Institute’s Report Card on Ontario’s Secondary Schools 2025, which uses results from the 2023-24 school year and ranks 747 schools. I update this page each time a new report card comes out.
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Mississauga high school rankings: all 35 schools
| # | School | Type | Rating (out of 10) | Ontario rank (of 747) |
|---|---|---|---|---|
| 1 | Olive Grove School | Independent | 9.4 | 7 |
| 2 | ISNA High School | Independent | 8.9 | 23 |
| 3 | John Fraser Secondary School | Public | 8.8 | 29 |
| 4 | The Woodlands School | Public | 8.3 | 52 |
| 5 | St. Joseph Secondary School | Catholic | 8.2 | 65 |
| 6 | St. Francis Xavier Secondary School | Catholic | 8.0 | 86 |
| 7 | St. Marcellinus Secondary School | Catholic | 7.9 | 95 |
| 8 | Al-Manarat Islamic School | Independent | 7.9 | 95 |
| 9 | Streetsville Secondary School | Public | 7.9 | 95 |
| 10 | St. Paul Secondary School | Catholic | 7.7 | 119 |
| 11 | St. Aloysius Gonzaga Secondary School | Catholic | 7.7 | 119 |
| 12 | Lorne Park Secondary School | Public | 7.6 | 130 |
| 13 | École secondaire catholique Sainte-Famille | French Catholic | 7.3 | 158 |
| 14 | Port Credit Secondary School | Public | 7.2 | 178 |
| 15 | Cawthra Park Secondary School | Public | 7.1 | 201 |
| 16 | Loyola Catholic Secondary School | Catholic | 7.0 | 220 |
| 17 | Our Lady of Mount Carmel Secondary School | Catholic | 6.9 | 238 |
| 18 | Glenforest Secondary School | Public | 6.8 | 254 |
| 19 | Mississauga Secondary School | Public | 6.7 | 275 |
| 20 | Iona Catholic Secondary School | Catholic | 6.2 | 349 |
| 21 | Erindale Secondary School | Public | 6.2 | 349 |
| 22 | Meadowvale Secondary School | Public | 6.1 | 367 |
| 23 | Stephen Lewis Secondary School | Public | 6.0 | 390 |
| 24 | Philip Pocock Catholic Secondary School | Catholic | 5.9 | 401 |
| 25 | St. Joan of Arc Catholic Secondary School | Catholic | 5.9 | 401 |
| 26 | Safa and Marwa Islamic School | Independent | 5.5 | 478 |
| 27 | Rick Hansen Secondary School | Public | 5.5 | 478 |
| 28 | Applewood Heights Secondary School | Public | 5.4 | 497 |
| 29 | St. Martin Secondary School | Catholic | 4.9 | 559 |
| 30 | Ascension of Our Lord Secondary School | Catholic | 4.9 | 559 |
| 31 | Lincoln M. Alexander Secondary School | Public | 4.8 | 573 |
| 32 | Clarkson Secondary School | Public | 4.6 | 591 |
| 33 | Father Michael Goetz Secondary School | Catholic | 4.0 | 654 |
| 34 | Thomas L. Kennedy Secondary School | Public | 3.3 | 694 |
| 35 | West Credit Secondary School | Public | 0.9 | 737 |
Schools with the same rating share the same Ontario rank. Source: Fraser Institute school rankings.
Top public high schools in Mississauga
- John Fraser Secondary School, 8.8
- The Woodlands School, 8.3
- Streetsville Secondary School, 7.9
- Lorne Park Secondary School, 7.6
- Port Credit Secondary School, 7.2
Top Catholic high schools in Mississauga
- St. Joseph Secondary School, 8.2
- St. Francis Xavier Secondary School, 8.0
- St. Marcellinus Secondary School, 7.9
- St. Paul Secondary School, 7.7
- St. Aloysius Gonzaga Secondary School, 7.7
A closer look at the schools parents ask about most
John Fraser Secondary School ranking
John Fraser is rated 8.8 and ranks 29th of 747 in Ontario, the top public high school in Mississauga. It also hosts the Peel board’s regional Advanced Placement (AP) program.
The Woodlands School ranking
The Woodlands is rated 8.3 and ranks 52nd in Ontario, second among Mississauga’s public high schools.
St. Joseph Secondary School ranking
St. Joseph is rated 8.2 and ranks 65th in Ontario, the top Catholic high school in Mississauga. Its five-year average is 7.6, so it has been climbing.
St. Francis Xavier Secondary School ranking
St. Francis Xavier is rated 8.0 and ranks 86th in Ontario, with a five-year average of 8.0. It offers the International Baccalaureate (IB) program.
St. Marcellinus Secondary School ranking
St. Marcellinus is rated 7.9 and ranks 95th in Ontario, with a five-year average of 8.1.
Streetsville Secondary School ranking
Streetsville is rated 7.9 and ranks 95th in Ontario, third among the public high schools.
Lorne Park Secondary School ranking
Lorne Park is rated 7.6 and ranks 130th in Ontario.
Port Credit Secondary School ranking
Port Credit is rated 7.2 and ranks 178th in Ontario. It hosts the Peel board’s regional SciTech and Strings programs.
Cawthra Park Secondary School ranking
Cawthra Park is rated 7.1 and ranks 201st in Ontario. It is best known as one of Peel’s regional arts schools.
Glenforest Secondary School ranking
Glenforest is rated 6.8 and ranks 254th in Ontario. It offers the International Baccalaureate (IB) program.
Stephen Lewis Secondary School ranking
Stephen Lewis in Mississauga is rated 6.0 and ranks 390th in Ontario, close to the provincial average.
How the rankings work
The Fraser Institute rates each school out of 10 using results from Ontario’s province-wide tests: the Grade 9 math test and the Grade 10 literacy test. A rating of 6 is roughly average for the province.
The rating measures test results only. It says nothing about arts, sports, clubs, special education support, school culture or how a particular teacher connects with your child. Treat it as one input, then visit the school and talk to parents who have kids there.
Buying a home for a specific school: what to check first
- The address decides the school. Each home is assigned to a home school by its boundary. Two houses on nearby streets can feed different high schools.
- Boundaries change. Boards redraw them as neighbourhoods grow. Confirm the school for the exact address with the Peel District School Board or the Dufferin-Peel Catholic District School Board before you make an offer.
- Special programs are by application. Programs such as IB, AP and regional arts usually take students through an application, not by address. Living nearby does not guarantee a spot, and programs and locations can change from year to year.
- Look at the trend. A school that has held its rating for five years is a safer bet than one good year.
Once you know which schools you want, I can set up a search for homes inside those boundaries. Start with detached homes, semi-detached homes, townhouses or condos in Mississauga.
Frequently asked questions
What is the best high school in Mississauga?
Among public schools it is John Fraser Secondary School at 8.8 out of 10. Among Catholic schools it is St. Joseph Secondary School at 8.2. The highest rating overall is Olive Grove School, an independent school, at 9.4.
What is the best public high school in Mississauga?
John Fraser Secondary School at 8.8, followed by The Woodlands School at 8.3 and Streetsville Secondary School at 7.9.
What is the best Catholic high school in Mississauga?
St. Joseph Secondary School at 8.2, followed by St. Francis Xavier at 8.0 and St. Marcellinus at 7.9.
Which Mississauga high schools have special programs?
John Fraser hosts Advanced Placement, Port Credit hosts SciTech and Strings, Cawthra Park is a regional arts school, and Glenforest and St. Francis Xavier offer IB. Entry is by application.
Do I have to live in the boundary to attend a school?
For a regular program, generally yes: your address sets your home school. Application programs are the exception. Always confirm with the school board for your exact address.
How often do the rankings change?
The Fraser Institute publishes a new report card about once a year. Most schools move a little each year, so look at the five-year picture as well as the latest number.
Want help finding a home near one of these schools?
Tell me which schools are on your list and I will show you what is available in those boundaries and what homes there have been selling for. Call or text me at 647-249-9872, and we can meet by Video Conference or In-Person in My Office.