Great Lakes Secondary School
275 Wellington Street · Sarnia · N7T1H1 · Lambton Kent DSB
With Great Lakes Secondary School, Sarnia counts 6 secondary schools within 3 km. Every school in and around Sarnia →
What stands out about Great Lakes Secondary School
- A typical size: 1,095 students, where the middle secondary school in Ontario has 810.
- On the measures with a value, it lands in the bottom fifth in Ontario.
- Furthest behind on Grade 9 math: 31%, against 55% in Ontario.
- Public and English-language, under Lambton Kent DSB.
How Great Lakes 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.
Great Lakes Secondary School reports 2 of 2 measures; on average they sit in the bottom fifth in Ontario.
| Measure | Here | Middle, Ontario | Band | 3-year change |
|---|---|---|---|---|
| Grade 9 math | 31% | 55% | Bottom fifth | +7 |
| Literacy test (OSSLT), first try | 72% | 85% | Bottom fifth | −3 |
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 Great Lakes Secondary School has a band rather than a letter
Against the other schools in Ontario, Great Lakes Secondary School’s results fall in the bottom fifth. That band is its measure here: the letters on this site are for towns.
The letter belongs to Sarnia: its School Grade weighs Great Lakes Secondary School with every other school around it.
Getting a place at Great Lakes Secondary School
The neighbourhood school is the one the board designates for the address; choice beyond it depends on space.
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 schools of its level closest to it, straight-line distance.
2 of the 6 nearest secondary schools have more students than Great Lakes Secondary School.
| School | System | Language | Students | Band | Away |
|---|---|---|---|---|---|
| Great Lakes Secondary School | English public | English | 1,095 | Bottom fifth | |
| Northern Collegiate Institute and Vocational School | English public | English | 1,145 | Second fifth | 4.1 km |
| Alexander Mackenzie Secondary School | English public | English | 300 | Bottom fifth | 4.5 km |
| École secondaire catholique Saint-François-Xavier | French Catholic | French | 60 | Bottom fifth | 4.8 km |
| St Patrick's Catholic High School | English Catholic | English | 1,480 | Middle fifth | 5 km |
| École secondaire Franco-Jeunesse | French public | French | – | Bottom fifth | 5 km |
| Lambton Central Collegiate and Vocational Institute | English public | English | 845 | Middle fifth | 23 km |
Secondary schools near Great Lakes 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 Great Lakes Secondary School
Who runs Great Lakes Secondary School?
Great Lakes Secondary School belongs to Lambton Kent DSB (English public).
What language does Great Lakes Secondary School teach in?
English.
How do pupils get a place at Great Lakes Secondary School?
Enrolment goes through the board; schools outside your area take students when they have room.
Which schools of the same kind are near Great Lakes Secondary School?
Nearest of all: Northern Collegiate Institute and Vocational School (4.1 km), Alexander Mackenzie Secondary School (4.5 km) and École secondaire catholique Saint-François-Xavier (4.8 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).