Mount Sinai College vs South Sydney High School
A head-to-head comparison of two schools in New South Wales, 1.0 km 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
South Sydney High School
Maroubra · Government high school · 7-12
796 students · ICSEA 1037
| Measure | Mount Sinai College Maroubra NSW | South Sydney High School Maroubra NSW |
|---|---|---|
| Success Index | 72 Top 25% | 64 Top 50% |
| State rank (type) | #232 of 1,619 | #164 of 539 |
| National rank (type) | #810 of 4,908 | #414 of 1,472 |
| Sector | Independent | Government |
| Type | Primary | Secondary |
| Year range | K-6 | 7-12 |
| Students | 267 | 796 |
| Girls / boys | 137 / 130 | 312 / 484 |
| Foundation intake | 41 | – |
| Year 7 cohort | – | 141 |
| Year 12 cohort | – | 121 |
| VCE median study score VCAA, latest year | – | – |
| VCE study scores 40+ | – | – |
| 5-year enrolment growth | -13% | +25% |
| ICSEA Average 1000 | 1097 | 1037 |
| ICSEA percentile | 83th | 63th |
| Top SEA quarter | 53% | 22% |
| Bottom SEA quarter | 10% | 21% |
| Students per teacher | 11.8 | 13.6 |
| Teaching staff (FTE) | 22.6 | 58.3 |
| Non-teaching staff (FTE) | 18.0 | 11.1 |
| Language background other than English | 28% | 43% |
| Indigenous students | 0% | 6% |
| Suburb | Maroubra 2035 | Maroubra 2035 |
| Council area | Randwick | Randwick |
| Remoteness | Major Cities | Major Cities |
| Website | www.mountsinai.nsw.edu.au | sthsydney-h.schools.nsw.gov.au |
The verdict
- •Mount Sinai College scores higher on the Success Index (72.2 vs 64.4).
- •Mount Sinai College has the higher ICSEA (1097 vs 1037), indicating a more advantaged community.
- •Mount Sinai College has fewer students per teacher (11.8 vs 13.6).
- •South Sydney High School is the larger school with 796 students compared with 267.
- •South Sydney High School has grown faster over five years (25% vs -13%).
- •Mount Sinai College is a independent school while South Sydney High School is a government 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 South Sydney High School?
On the Success Index, Mount Sinai College ranks higher (72.2 vs 64.4 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 South Sydney High School?
About 1.0 km in a straight line, between Maroubra and Maroubra 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 South Sydney High School has 13.6.
How do Mount Sinai College and South Sydney High School rank in NSW?
Mount Sinai College is 232nd of 1,619 and South Sydney High School is 164th of 539 among primary schools in New South Wales on the 2025 Success Index.