Australian Performing Arts Grammar School vs International Grammar School
A head-to-head comparison of two schools in New South Wales, 325 m apart, using official ACARA 2025 data. Best value in each row is highlighted.
Australian Performing Arts Grammar School
Glebe · Independent high school · 7-12
129 students · ICSEA 1103
International Grammar School
Ultimo · Independent combined · K-12
1,224 students · ICSEA 1170
| Measure | Australian Performing Arts Grammar School Glebe NSW | International Grammar School Ultimo NSW |
|---|---|---|
| Success Index | 73 Top 25% | 82 Top 10% |
| State rank (type) | #70 of 539 | #32 of 314 |
| National rank (type) | #198 of 1,472 | #77 of 1,259 |
| Sector | Independent | Independent |
| Type | Secondary | Combined |
| Year range | 7-12 | K-12 |
| Students | 129 | 1,224 |
| Girls / boys | 92 / 37 | 527 / 697 |
| Foundation intake | – | 60 |
| Year 7 cohort | 17 | 103 |
| Year 12 cohort | 30 | 106 |
| VCE median study score VCAA, latest year | – | – |
| VCE study scores 40+ | – | – |
| 5-year enrolment growth | -7% | +4% |
| ICSEA Average 1000 | 1103 | 1170 |
| ICSEA percentile | 85th | 98th |
| Top SEA quarter | 51% | 71% |
| Bottom SEA quarter | 2% | 2% |
| Students per teacher | 13.5 | 9.7 |
| Teaching staff (FTE) | 9.5 | 126.5 |
| Non-teaching staff (FTE) | 3.5 | 55.2 |
| Language background other than English | 27% | 26% |
| Indigenous students | 5% | 2% |
| Suburb | Glebe 2037 | Ultimo 2007 |
| Council area | Sydney | Sydney |
| Remoteness | Major Cities | Major Cities |
| Website | www.apgs.nsw.edu.au/ | www.igssyd.nsw.edu.au |
The verdict
- •International Grammar School scores higher on the Success Index (81.9 vs 73.3).
- •International Grammar School has the higher ICSEA (1170 vs 1103), indicating a more advantaged community.
- •International Grammar School has fewer students per teacher (9.7 vs 13.5).
- •International Grammar School is the larger school with 1,224 students compared with 129.
- •International Grammar School has grown faster over five years (4% vs -7%).
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 Australian Performing Arts Grammar School better than International Grammar School?
On the Success Index, International Grammar School ranks higher (81.9 vs 73.3 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 Australian Performing Arts Grammar School and International Grammar School?
About 325 m in a straight line, between Glebe and Ultimo in New South Wales.
Which has the better student-to-teacher ratio?
Australian Performing Arts Grammar School has 13.5 students per full-time-equivalent teacher and International Grammar School has 9.7.
How do Australian Performing Arts Grammar School and International Grammar School rank in NSW?
Australian Performing Arts Grammar School is 70th of 539 and International Grammar School is 32nd of 314 among secondary schools in New South Wales on the 2025 Success Index.