St Catherine of Siena Catholic School
15 Bennett Ave · Ajax · L1T3P1 · Durham CDSB
Around Ajax, within 3 km, there are 58 elementary schools, St Catherine of Siena Catholic School among them. Every school in and around Ajax →
What stands out about St Catherine of Siena Catholic School
- A typical size: 350 students, where the middle elementary school in Ontario has 335.
- On the measures with a value, it lands in the second fifth in Ontario.
- Its best showing is Grade 6 math, at 78% where the middle in Ontario is 51%.
- Its results have climbed: 2 measures up 5 points or more in three years.
- Catholic and English-language, under Durham CDSB.
How St Catherine of Siena Catholic 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.
St Catherine of Siena Catholic School reports 6 of 6 measures; on average they sit in the second fifth in Ontario.
| Measure | Here | Middle, Ontario | Band | 3-year change |
|---|---|---|---|---|
| Grade 3 reading | 86% | 76% | Second fifth | +2 |
| Grade 3 writing | 73% | 65% | Second fifth | +1 |
| Grade 3 math | 59% | 65% | Fourth fifth | −9 |
| Grade 6 reading | 96% | 88% | Top fifth | +6 |
| Grade 6 writing | 89% | 86% | Second fifth | −1 |
| Grade 6 math | 78% | 51% | Top fifth | +20 |
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.
St Catherine of Siena Catholic School is placed by its results, not lettered
Against the other schools in Ontario, St Catherine of Siena Catholic 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 Ajax’s Schools page: the town’s grade takes in St Catherine of Siena Catholic School and its neighbours.
Getting a place at St Catherine of Siena Catholic School
The neighbourhood school is the one the board designates for the address; choice beyond it depends on space.
A Catholic elementary school usually asks for a Catholic parent or a baptized child; a Catholic high school admits all.
The provinces’ education acts and the boards’ own admission policies; check with the board for a given address.
Side by side with the nearest elementary schools
The nearest schools of the same level, as the crow flies: system, language and, where published, students and results.
2 of the 6 nearest elementary schools have more students than St Catherine of Siena Catholic School.
| School | System | Language | Students | Band | Away |
|---|---|---|---|---|---|
| St Catherine of Siena Catholic School | English Catholic | English | 350 | Second fifth | |
| Dr Roberta Bondar Public School | English public | English | 220 | Middle fifth | 0.4 km |
| St Teresa of Calcutta Catholic School | English Catholic | English | 270 | Second fifth | 0.5 km |
| Lester B Pearson Public School | English public | English | 340 | Middle fifth | 0.7 km |
| Terry Fox Public School | English public | English | 470 | Second fifth | 0.8 km |
| St Jude Catholic School | English Catholic | English | 375 | Fourth fifth | 0.8 km |
| Applecroft Public School | English public | English | 340 | Middle fifth | 0.8 km |
Elementary schools near St Catherine of Siena Catholic School
Nearest first, as the crow flies, up to 25 km. Each school’s own admission policy decides who gets a place.
Questions about St Catherine of Siena Catholic School
Who runs St Catherine of Siena Catholic School?
The board is Durham CDSB; St Catherine of Siena Catholic School is English Catholic.
What language does St Catherine of Siena Catholic School teach in?
English.
How do pupils get a place at St Catherine of Siena Catholic School?
Enrolment goes through the board; schools outside your area take students when they have room.
Which schools of the same kind are near St Catherine of Siena Catholic School?
The nearest are Dr Roberta Bondar Public School (0.4 km), St Teresa of Calcutta Catholic School (0.5 km) and Lester B Pearson Public School (0.7 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).