St Andrew's Cathedral School vs Sydney Grammar School
A head-to-head comparison of two combined schools in New South Wales, 727 m apart, using official ACARA 2025 data. Best value in each row is highlighted.
St Andrew's Cathedral School
Sydney · Independent combined · K-12
1,436 students · ICSEA 1189
Sydney Grammar School
Darlinghurst · Independent combined · K-12
1,925 students · ICSEA 1274
| Measure | St Andrew's Cathedral School Sydney NSW | Sydney Grammar School Darlinghurst NSW |
|---|---|---|
| Success Index | 88 Top 5% | 84 Top 5% |
| State rank (type) | #5 of 314 | #17 of 314 |
| National rank (type) | #17 of 1,259 | #54 of 1,259 |
| Sector | Independent | Independent |
| Type | Combined | Combined |
| Year range | K-12 | K-12 |
| Students | 1,436 | 1,925 |
| Girls / boys | 595 / 841 | 0 / 1,925 |
| Foundation intake | 34 | 63 |
| Year 7 cohort | 175 | 200 |
| Year 12 cohort | 176 | 199 |
| VCE median study score VCAA, latest year | – | – |
| VCE study scores 40+ | – | – |
| 5-year enrolment growth | +5% | +2% |
| ICSEA Average 1000 | 1189 | 1274 |
| ICSEA percentile | 99th | 99th |
| Top SEA quarter | 76% | 93% |
| Bottom SEA quarter | 1% | 0% |
| Students per teacher | 9.3 | 9.2 |
| Teaching staff (FTE) | 153.7 | 209.9 |
| Non-teaching staff (FTE) | 93.8 | 103.8 |
| Language background other than English | 30% | 30% |
| Indigenous students | 1% | 0% |
| Suburb | Sydney 2000 | Darlinghurst 2010 |
| Council area | Sydney | Sydney |
| Remoteness | Major Cities | Major Cities |
| Website | www.sacs.nsw.edu.au | www.sydgram.nsw.edu.au |
The verdict
- •St Andrew's Cathedral School scores higher on the Success Index (88.4 vs 83.8).
- •Sydney Grammar School has the higher ICSEA (1274 vs 1189), indicating a more advantaged community.
- •Sydney Grammar School is the larger school with 1,925 students compared with 1,436.
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 St Andrew's Cathedral School better than Sydney Grammar School?
On the Success Index, St Andrew's Cathedral School ranks higher (88.4 vs 83.8 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 St Andrew's Cathedral School and Sydney Grammar School?
About 727 m in a straight line, between Sydney and Darlinghurst in New South Wales.
Which has the better student-to-teacher ratio?
St Andrew's Cathedral School has 9.3 students per full-time-equivalent teacher and Sydney Grammar School has 9.2.
How do St Andrew's Cathedral School and Sydney Grammar School rank in NSW?
St Andrew's Cathedral School is 5th of 314 and Sydney Grammar School is 17th of 314 among combined schools in New South Wales on the 2025 Success Index.