Kambala vs Trinity Grammar School
A head-to-head comparison of two combined schools in New South Wales, 14 km apart, using official ACARA 2025 data. Best value in each row is highlighted.
Kambala
Rose Bay · Independent combined · K-12
986 students · ICSEA 1169
Trinity Grammar School
Summer Hill · Independent combined · K-12
2,296 students · ICSEA 1168
| Measure | Kambala Rose Bay NSW | Trinity Grammar School Summer Hill NSW |
|---|---|---|
| Success Index | 87 Top 5% | 82 Top 10% |
| State rank (type) | #8 of 314 | #28 of 314 |
| National rank (type) | #23 of 1,259 | #72 of 1,259 |
| Sector | Independent | Independent |
| Type | Combined | Combined |
| Year range | K-12 | K-12 |
| Students | 986 | 2,296 |
| Girls / boys | 986 / 0 | 0 / 2,296 |
| Foundation intake | 39 | 81 |
| Year 7 cohort | 109 | 273 |
| Year 12 cohort | 96 | 234 |
| VCE median study score VCAA, latest year | – | – |
| VCE study scores 40+ | – | – |
| 5-year enrolment growth | +2% | +6% |
| ICSEA Average 1000 | 1169 | 1168 |
| ICSEA percentile | 98th | 98th |
| Top SEA quarter | 70% | 67% |
| Bottom SEA quarter | 1% | 1% |
| Students per teacher | 8.9 | 9.0 |
| Teaching staff (FTE) | 110.7 | 254.7 |
| Non-teaching staff (FTE) | 81.7 | 146.7 |
| Language background other than English | 33% | 61% |
| Indigenous students | 1% | 0% |
| Suburb | Rose Bay 2029 | Summer Hill 2130 |
| Council area | Woollahra | Inner West |
| Remoteness | Major Cities | Major Cities |
| Website | www.kambala.nsw.edu.au | www.trinity.nsw.edu.au |
The verdict
- •Kambala scores higher on the Success Index (87.2 vs 82.2).
- •Kambala has the higher ICSEA (1169 vs 1168), indicating a more advantaged community.
- •Trinity Grammar School is the larger school with 2,296 students compared with 986.
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 Kambala better than Trinity Grammar School?
On the Success Index, Kambala ranks higher (87.2 vs 82.2 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 Kambala and Trinity Grammar School?
About 14 km in a straight line, between Rose Bay and Summer Hill in New South Wales.
Which has the better student-to-teacher ratio?
Kambala has 8.9 students per full-time-equivalent teacher and Trinity Grammar School has 9.0.
How do Kambala and Trinity Grammar School rank in NSW?
Kambala is 8th of 314 and Trinity Grammar School is 28th of 314 among combined schools in New South Wales on the 2025 Success Index.