International Grammar School vs Ultimo Public School
A head-to-head comparison of two schools in New South Wales, 565 m apart, using official ACARA 2025 data. Best value in each row is highlighted.
International Grammar School
Ultimo · Independent combined · K-12
1,224 students · ICSEA 1170
Ultimo Public School
Ultimo · Government primary · K-6
483 students · ICSEA 1088
| Measure | International Grammar School Ultimo NSW | Ultimo Public School Ultimo NSW |
|---|---|---|
| Success Index | 82 Top 10% | 72 Top 25% |
| State rank (type) | #32 of 314 | #235 of 1,619 |
| National rank (type) | #77 of 1,259 | #815 of 4,908 |
| Sector | Independent | Government |
| Type | Combined | Primary |
| Year range | K-12 | K-6 |
| Students | 1,224 | 483 |
| Girls / boys | 527 / 697 | 227 / 256 |
| Foundation intake | 60 | 76 |
| Year 7 cohort | 103 | – |
| Year 12 cohort | 106 | – |
| VCE median study score VCAA, latest year | – | – |
| VCE study scores 40+ | – | – |
| 5-year enrolment growth | +4% | +27% |
| ICSEA Average 1000 | 1170 | 1088 |
| ICSEA percentile | 98th | 81th |
| Top SEA quarter | 71% | 35% |
| Bottom SEA quarter | 2% | 8% |
| Students per teacher | 9.7 | 15.9 |
| Teaching staff (FTE) | 126.5 | 30.4 |
| Non-teaching staff (FTE) | 55.2 | 3.8 |
| Language background other than English | 26% | 71% |
| Indigenous students | 2% | 3% |
| Suburb | Ultimo 2007 | Ultimo 2007 |
| Council area | Sydney | Sydney |
| Remoteness | Major Cities | Major Cities |
| Website | www.igssyd.nsw.edu.au | ultimo-p.schools.nsw.gov.au |
The verdict
- •International Grammar School scores higher on the Success Index (81.9 vs 72.2).
- •International Grammar School has the higher ICSEA (1170 vs 1088), indicating a more advantaged community.
- •International Grammar School has fewer students per teacher (9.7 vs 15.9).
- •International Grammar School is the larger school with 1,224 students compared with 483.
- •Ultimo Public School has grown faster over five years (27% vs 4%).
- •International Grammar School is a independent school while Ultimo Public 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 International Grammar School better than Ultimo Public School?
On the Success Index, International Grammar School ranks higher (81.9 vs 72.2 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 International Grammar School and Ultimo Public School?
About 565 m in a straight line, between Ultimo and Ultimo in New South Wales.
Which has the better student-to-teacher ratio?
International Grammar School has 9.7 students per full-time-equivalent teacher and Ultimo Public School has 15.9.
How do International Grammar School and Ultimo Public School rank in NSW?
International Grammar School is 32nd of 314 and Ultimo Public School is 235th of 1,619 among combined schools in New South Wales on the 2025 Success Index.