Mount St Joseph Milperra vs St Mary's Catholic College
A head-to-head comparison of two secondary schools in New South Wales, 125 km apart, using official ACARA 2025 data. Best value in each row is highlighted.
Mount St Joseph Milperra
Milperra · Catholic high school · 7-12
891 students · ICSEA 1060
St Mary's Catholic College
Gateshead · Catholic high school · 7-12
989 students · ICSEA 1062
| Measure | Mount St Joseph Milperra Milperra NSW | St Mary's Catholic College Gateshead NSW |
|---|---|---|
| Success Index | 67 Top 25% | 73 Top 25% |
| State rank (type) | #143 of 539 | #75 of 539 |
| National rank (type) | #350 of 1,472 | #211 of 1,472 |
| Sector | Catholic | Catholic |
| Type | Secondary | Secondary |
| Year range | 7-12 | 7-12 |
| Students | 891 | 989 |
| Girls / boys | 891 / 0 | 497 / 492 |
| Foundation intake | – | – |
| Year 7 cohort | 170 | 206 |
| Year 12 cohort | 134 | 125 |
| VCE median study score VCAA, latest year | – | – |
| VCE study scores 40+ | – | – |
| 5-year enrolment growth | +4% | +15% |
| ICSEA Average 1000 | 1060 | 1062 |
| ICSEA percentile | 72th | 73th |
| Top SEA quarter | 22% | 29% |
| Bottom SEA quarter | 14% | 13% |
| Students per teacher | 13.0 | 12.0 |
| Teaching staff (FTE) | 68.5 | 82.6 |
| Non-teaching staff (FTE) | 15.7 | 22.5 |
| Language background other than English | 77% | 6% |
| Indigenous students | 1% | 8% |
| Suburb | Milperra 2214 | Gateshead 2290 |
| Council area | Canterbury-Bankstown | Lake Macquarie |
| Remoteness | Major Cities | Major Cities |
| Website | msj.syd.catholic.edu.au/ | gatesheadsm.catholic.edu.au |
The verdict
- •St Mary's Catholic College scores higher on the Success Index (73.0 vs 67.4).
- •St Mary's Catholic College has the higher ICSEA (1062 vs 1060), indicating a more advantaged community.
- •St Mary's Catholic College has fewer students per teacher (12.0 vs 13.0).
- •St Mary's Catholic College is the larger school with 989 students compared with 891.
- •St Mary's Catholic College has grown faster over five years (15% vs 4%).
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 Mount St Joseph Milperra better than St Mary's Catholic College?
On the Success Index, St Mary's Catholic College ranks higher (73.0 vs 67.4 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 Mount St Joseph Milperra and St Mary's Catholic College?
About 125 km in a straight line, between Milperra and Gateshead in New South Wales.
Which has the better student-to-teacher ratio?
Mount St Joseph Milperra has 13.0 students per full-time-equivalent teacher and St Mary's Catholic College has 12.0.
How do Mount St Joseph Milperra and St Mary's Catholic College rank in NSW?
Mount St Joseph Milperra is 143rd of 539 and St Mary's Catholic College is 75th of 539 among secondary schools in New South Wales on the 2025 Success Index.