Christian Brothers' High School Lewisham vs Trinity Grammar School
A head-to-head comparison of two combined schools in New South Wales, 1.4 km apart, using official ACARA 2025 data. Best value in each row is highlighted.
Christian Brothers' High School Lewisham
Lewisham · Independent combined · 5-12
1,231 students · ICSEA 1074
Trinity Grammar School
Summer Hill · Independent combined · K-12
2,296 students · ICSEA 1168
| Measure | Christian Brothers' High School Lewisham Lewisham NSW | Trinity Grammar School Summer Hill NSW |
|---|---|---|
| Success Index | 57 Top 50% | 82 Top 10% |
| State rank (type) | #161 of 314 | #28 of 314 |
| National rank (type) | #510 of 1,259 | #72 of 1,259 |
| Sector | Independent | Independent |
| Type | Combined | Combined |
| Year range | 5-12 | K-12 |
| Students | 1,231 | 2,296 |
| Girls / boys | 0 / 1,231 | 0 / 2,296 |
| Foundation intake | – | 81 |
| Year 7 cohort | 201 | 273 |
| Year 12 cohort | 150 | 234 |
| VCE median study score VCAA, latest year | – | – |
| VCE study scores 40+ | – | – |
| 5-year enrolment growth | -5% | +6% |
| ICSEA Average 1000 | 1074 | 1168 |
| ICSEA percentile | 77th | 98th |
| Top SEA quarter | 27% | 67% |
| Bottom SEA quarter | 7% | 1% |
| Students per teacher | 12.4 | 9.0 |
| Teaching staff (FTE) | 99.1 | 254.7 |
| Non-teaching staff (FTE) | 27.7 | 146.7 |
| Language background other than English | 32% | 61% |
| Indigenous students | 3% | 0% |
| Suburb | Lewisham 2049 | Summer Hill 2130 |
| Council area | Inner West | Inner West |
| Remoteness | Major Cities | Major Cities |
| Website | www.cbhslewisham.nsw.edu.au/ | www.trinity.nsw.edu.au |
The verdict
- •Trinity Grammar School scores higher on the Success Index (82.2 vs 56.8).
- •Trinity Grammar School has the higher ICSEA (1168 vs 1074), indicating a more advantaged community.
- •Trinity Grammar School has fewer students per teacher (9.0 vs 12.4).
- •Trinity Grammar School is the larger school with 2,296 students compared with 1,231.
- •Trinity Grammar School has grown faster over five years (6% vs -5%).
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 Christian Brothers' High School Lewisham better than Trinity Grammar School?
On the Success Index, Trinity Grammar School ranks higher (82.2 vs 56.8 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 Christian Brothers' High School Lewisham and Trinity Grammar School?
About 1.4 km in a straight line, between Lewisham and Summer Hill in New South Wales.
Which has the better student-to-teacher ratio?
Christian Brothers' High School Lewisham has 12.4 students per full-time-equivalent teacher and Trinity Grammar School has 9.0.
How do Christian Brothers' High School Lewisham and Trinity Grammar School rank in NSW?
Christian Brothers' High School Lewisham is 161st of 314 and Trinity Grammar School is 28th of 314 among combined schools in New South Wales on the 2025 Success Index.