J J Cahill Memorial High School vs Our Lady of the Sacred Heart College
A head-to-head comparison of two secondary schools in New South Wales, 2.4 km 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
Our Lady of the Sacred Heart College
Kensington · Catholic high school · 7-12
702 students · ICSEA 1083
| Measure | J J Cahill Memorial High School Mascot NSW | Our Lady of the Sacred Heart College Kensington NSW |
|---|---|---|
| Success Index | 53 Top 50% | 69 Top 25% |
| State rank (type) | #259 of 539 | #118 of 539 |
| National rank (type) | #678 of 1,472 | #299 of 1,472 |
| Sector | Government | Catholic |
| Type | Secondary | Secondary |
| Year range | 7-12 | 7-12 |
| Students | 298 | 702 |
| Girls / boys | 128 / 170 | 702 / 0 |
| Foundation intake | – | – |
| Year 7 cohort | 54 | 92 |
| Year 12 cohort | 38 | 136 |
| VCE median study score VCAA, latest year | – | – |
| VCE study scores 40+ | – | – |
| 5-year enrolment growth | -7% | -17% |
| ICSEA Average 1000 | 987 | 1083 |
| ICSEA percentile | 41th | 79th |
| Top SEA quarter | 9% | 32% |
| Bottom SEA quarter | 39% | 10% |
| Students per teacher | 7.6 | 12.9 |
| Teaching staff (FTE) | 39.3 | 54.4 |
| Non-teaching staff (FTE) | 11.6 | 15.4 |
| Language background other than English | 66% | 59% |
| Indigenous students | 7% | 3% |
| Suburb | Mascot 2020 | Kensington 2033 |
| Council area | Bayside (NSW) | Randwick |
| Remoteness | Major Cities | Major Cities |
| Website | jjcahill-h.schools.nsw.gov.au | olshkensington.syd.catholic.edu.au |
The verdict
- •Our Lady of the Sacred Heart College scores higher on the Success Index (69.4 vs 52.9).
- •Our Lady of the Sacred Heart College has the higher ICSEA (1083 vs 987), indicating a more advantaged community.
- •J J Cahill Memorial High School has fewer students per teacher (7.6 vs 12.9).
- •Our Lady of the Sacred Heart College is the larger school with 702 students compared with 298.
- •J J Cahill Memorial High School has grown faster over five years (-7% vs -17%).
- •J J Cahill Memorial High School is a government school while Our Lady of the Sacred Heart College 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 Our Lady of the Sacred Heart College?
On the Success Index, Our Lady of the Sacred Heart College ranks higher (69.4 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 Our Lady of the Sacred Heart College?
About 2.4 km in a straight line, between Mascot and Kensington 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 Our Lady of the Sacred Heart College has 12.9.
How do J J Cahill Memorial High School and Our Lady of the Sacred Heart College rank in NSW?
J J Cahill Memorial High School is 259th of 539 and Our Lady of the Sacred Heart College is 118th of 539 among secondary schools in New South Wales on the 2025 Success Index.