J J Cahill Memorial High School vs St Therese Catholic Primary School
A head-to-head comparison of two schools in New South Wales, 222 m apart, using official ACARA 2025 data. Best value in each row is highlighted.
J J Cahill Memorial High School
Mascot · Government high school · 7-12
298 students · ICSEA 987
St Therese Catholic Primary School
Mascot · Catholic primary · K-6
608 students · ICSEA 1089
| Measure | J J Cahill Memorial High School Mascot NSW | St Therese Catholic Primary School Mascot NSW |
|---|---|---|
| Success Index | 53 Top 50% | 68 Top 25% |
| State rank (type) | #259 of 539 | #406 of 1,619 |
| National rank (type) | #678 of 1,472 | #1244 of 4,908 |
| Sector | Government | Catholic |
| Type | Secondary | Primary |
| Year range | 7-12 | K-6 |
| Students | 298 | 608 |
| Girls / boys | 128 / 170 | 302 / 306 |
| Foundation intake | – | 82 |
| Year 7 cohort | 54 | – |
| Year 12 cohort | 38 | – |
| VCE median study score VCAA, latest year | – | – |
| VCE study scores 40+ | – | – |
| 5-year enrolment growth | -7% | -2% |
| ICSEA Average 1000 | 987 | 1089 |
| ICSEA percentile | 41th | 81th |
| Top SEA quarter | 9% | 36% |
| Bottom SEA quarter | 39% | 8% |
| Students per teacher | 7.6 | 19.2 |
| Teaching staff (FTE) | 39.3 | 31.6 |
| Non-teaching staff (FTE) | 11.6 | 10.9 |
| Language background other than English | 66% | 78% |
| Indigenous students | 7% | 4% |
| Suburb | Mascot 2020 | Mascot 2020 |
| Council area | Bayside (NSW) | Bayside (NSW) |
| Remoteness | Major Cities | Major Cities |
| Website | jjcahill-h.schools.nsw.gov.au | sttmascot.syd.catholic.edu.au |
The verdict
- •St Therese Catholic Primary School scores higher on the Success Index (67.6 vs 52.9).
- •St Therese Catholic Primary School has the higher ICSEA (1089 vs 987), indicating a more advantaged community.
- •J J Cahill Memorial High School has fewer students per teacher (7.6 vs 19.2).
- •St Therese Catholic Primary School is the larger school with 608 students compared with 298.
- •J J Cahill Memorial High School is a government school while St Therese Catholic Primary School is a catholic school, so fees and enrolment rules differ.
The Success Index summarises community advantage, resourcing and momentum from ACARA data. It does not measure teaching quality, results or fit. Methodology.
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Frequently asked questions
Is J J Cahill Memorial High School better than St Therese Catholic Primary School?
On the Success Index, St Therese Catholic Primary School ranks higher (67.6 vs 52.9 out of 100). The index measures community advantage and momentum from ACARA data, not teaching quality, so visit both schools before deciding.
How far apart are J J Cahill Memorial High School and St Therese Catholic Primary School?
About 222 m in a straight line, between Mascot and Mascot in New South Wales.
Which has the better student-to-teacher ratio?
J J Cahill Memorial High School has 7.6 students per full-time-equivalent teacher and St Therese Catholic Primary School has 19.2.
How do J J Cahill Memorial High School and St Therese Catholic Primary School rank in NSW?
J J Cahill Memorial High School is 259th of 539 and St Therese Catholic Primary School is 406th of 1,619 among secondary schools in New South Wales on the 2025 Success Index.