Mount Sinai College vs St Aidan's Catholic Primary School
A head-to-head comparison of two primary schools in New South Wales, 871 m apart, using official ACARA 2025 data. Best value in each row is highlighted.
Mount Sinai College
Maroubra · Independent primary · K-6
267 students · ICSEA 1097
St Aidan's Catholic Primary School
Maroubra Junction · Catholic primary · K-6
187 students · ICSEA 1126
| Measure | Mount Sinai College Maroubra NSW | St Aidan's Catholic Primary School Maroubra Junction NSW |
|---|---|---|
| Success Index | 72 Top 25% | 80 Top 5% |
| State rank (type) | #232 of 1,619 | #42 of 1,619 |
| National rank (type) | #810 of 4,908 | #181 of 4,908 |
| Sector | Independent | Catholic |
| Type | Primary | Primary |
| Year range | K-6 | K-6 |
| Students | 267 | 187 |
| Girls / boys | 137 / 130 | 107 / 80 |
| Foundation intake | 41 | 30 |
| Year 7 cohort | – | – |
| Year 12 cohort | – | – |
| VCE median study score VCAA, latest year | – | – |
| VCE study scores 40+ | – | – |
| 5-year enrolment growth | -13% | +0% |
| ICSEA Average 1000 | 1097 | 1126 |
| ICSEA percentile | 83th | 91th |
| Top SEA quarter | 53% | 48% |
| Bottom SEA quarter | 10% | 3% |
| Students per teacher | 11.8 | 14.2 |
| Teaching staff (FTE) | 22.6 | 13.2 |
| Non-teaching staff (FTE) | 18.0 | 2.9 |
| Language background other than English | 28% | 67% |
| Indigenous students | 0% | 1% |
| Suburb | Maroubra 2035 | Maroubra Junction 2035 |
| Council area | Randwick | Randwick |
| Remoteness | Major Cities | Major Cities |
| Website | www.mountsinai.nsw.edu.au | stamaroubra.syd.catholic.edu.au |
The verdict
- •St Aidan's Catholic Primary School scores higher on the Success Index (80.2 vs 72.2).
- •St Aidan's Catholic Primary School has the higher ICSEA (1126 vs 1097), indicating a more advantaged community.
- •Mount Sinai College has fewer students per teacher (11.8 vs 14.2).
- •Mount Sinai College is the larger school with 267 students compared with 187.
- •St Aidan's Catholic Primary School has grown faster over five years (0% vs -13%).
- •Mount Sinai College is a independent school while St Aidan's 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 Mount Sinai College better than St Aidan's Catholic Primary School?
On the Success Index, St Aidan's Catholic Primary School ranks higher (80.2 vs 72.2 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 Mount Sinai College and St Aidan's Catholic Primary School?
About 871 m in a straight line, between Maroubra and Maroubra Junction in New South Wales.
Which has the better student-to-teacher ratio?
Mount Sinai College has 11.8 students per full-time-equivalent teacher and St Aidan's Catholic Primary School has 14.2.
How do Mount Sinai College and St Aidan's Catholic Primary School rank in NSW?
Mount Sinai College is 232nd of 1,619 and St Aidan's Catholic Primary School is 42nd of 1,619 among primary schools in New South Wales on the 2025 Success Index.