Thornlea Secondary School
8075 Bayview Ave · Thornhill · L3T4N4 · York Region DSB
Around Thornlea, within 3 km, there are 14 secondary schools, Thornlea Secondary School among them. Every school in and around Thornlea →
What stands out about Thornlea Secondary School
- A large secondary school: 1,170 students, against a middle of 810 in Ontario.
- On the measures with a value, it lands in the second fifth in Ontario.
- Its best showing is Grade 9 math, at 78% where the middle in Ontario is 55%.
- An English public school, run by York Region DSB.
How Thornlea Secondary School does on Ontario’s tests
EQAO’s Grade 3, 6 and 9 assessments and the literacy test, 2024-25: each school against every school in Ontario.
On average across 2 reported measures of 2, Thornlea Secondary School is in the second fifth in Ontario.
| Measure | Here | Middle, Ontario | Band | 3-year change |
|---|---|---|---|---|
| Grade 9 math | 78% | 55% | Top fifth | +0 |
| Literacy test (OSSLT), first try | 90% | 85% | Second fifth | −7 |
N/R: EQAO doesn’t report groups too small to keep students anonymous. The three-year change is in percentage points, as the ministry publishes it.
Why Thornlea Secondary School has a band rather than a letter
Against the other schools in Ontario, Thornlea Secondary School’s results fall in the second fifth. That band is its measure here: the letters on this site are for towns.
For a letter, see Thornlea’s Schools page: the town’s grade takes in Thornlea Secondary School and its neighbours.
Getting a place at Thornlea Secondary School
Children go to the board’s designated school for their address, unless another school agrees to take them.
The provinces’ education acts and the boards’ own admission policies; check with the board for a given address.
Side by side with the nearest secondary schools
The neighbouring schools of its level, with their systems.
Of the 6 secondary schools nearest Thornlea Secondary School, 2 are larger.
| School | System | Language | Students | Band | Away |
|---|---|---|---|---|---|
| Thornlea Secondary School | English public | English | 1,170 | Second fifth | |
| St Robert Catholic High School | English Catholic | English | 1,705 | Top fifth | 2 km |
| Thornhill Secondary School | English public | English | 940 | Second fifth | 2.6 km |
| Brebeuf College School | English Catholic | English | 645 | Middle fifth | 3.1 km |
| Langstaff Secondary School | English public | English | 635 | Fourth fifth | 3.1 km |
| A Y Jackson Secondary School | English public | English | 1,400 | Top fifth | 4 km |
| St Joseph's Morrow Park Catholic Secondary School | English Catholic | English | 595 | Middle fifth | 4.2 km |
Secondary schools near Thornlea Secondary School
Nearest first, as the crow flies, up to 25 km. Each school’s own admission policy decides who gets a place.
Questions about Thornlea Secondary School
Who runs Thornlea Secondary School?
Thornlea Secondary School comes under York Region DSB (English public).
What language does Thornlea Secondary School teach in?
English.
How do pupils get a place at Thornlea Secondary School?
Each board registers its own students; its website gives the school for an address.
Which schools of the same kind are near Thornlea Secondary School?
Nearby: St Robert Catholic High School (2 km), Thornhill Secondary School (2.6 km) and Brebeuf College School (3.1 km).
Sources: Ontario Ministry of Education, School Information Finder 2024–25 and school contact list (Open Government Licence – Ontario) · Ontario Ministry of Education, School Information Finder 2024–25 (EQAO results; N/R where groups are too small). Open Government Licence – Ontario. · map tiles © OpenStreetMap contributors. Under the Statistics Canada Open Licence.
Adapted from Statistics Canada (Census of Population 2021, population estimates 2025, 2021 census boundaries) under the Statistics Canada Open Licence; this does not constitute an endorsement by Statistics Canada. Neighbourhood names in some cities © OpenStreetMap contributors (ODbL).