Marist Catholic College Penshurst vs Trinity Catholic College
A head-to-head comparison of two secondary schools in New South Wales, 129 km apart, using official ACARA 2025 data. Best value in each row is highlighted.
Marist Catholic College Penshurst
Mortdale · Catholic high school · 7-12
1,343 students · ICSEA 1090
Trinity Catholic College
Adamstown · Catholic high school · 7-11
849 students · ICSEA 1090
| Measure | Marist Catholic College Penshurst Mortdale NSW | Trinity Catholic College Adamstown NSW |
|---|---|---|
| Success Index | 73 Top 25% | 70 Top 25% |
| State rank (type) | #69 of 539 | #116 of 539 |
| National rank (type) | #197 of 1,472 | #297 of 1,472 |
| Sector | Catholic | Catholic |
| Type | Secondary | Secondary |
| Year range | 7-12 | 7-11 |
| Students | 1,343 | 849 |
| Girls / boys | 680 / 663 | 407 / 442 |
| Foundation intake | – | – |
| Year 7 cohort | 238 | 180 |
| Year 12 cohort | 202 | – |
| VCE median study score VCAA, latest year | – | – |
| VCE study scores 40+ | – | – |
| 5-year enrolment growth | +34% | -16% |
| ICSEA Average 1000 | 1090 | 1090 |
| ICSEA percentile | 81th | 81th |
| Top SEA quarter | 34% | 37% |
| Bottom SEA quarter | 7% | 8% |
| Students per teacher | 13.9 | 11.6 |
| Teaching staff (FTE) | 96.4 | 73.2 |
| Non-teaching staff (FTE) | 25.7 | 17.6 |
| Language background other than English | 70% | 14% |
| Indigenous students | 2% | 4% |
| Suburb | Mortdale 2223 | Adamstown 2289 |
| Council area | Georges River | Newcastle |
| Remoteness | Major Cities | Major Cities |
| Website | maristpenshurst.syd.catholic.edu.au | www.adamstownsp.catholic.edu.au |
The verdict
- •Marist Catholic College Penshurst scores higher on the Success Index (73.4 vs 69.6).
- •Trinity Catholic College has fewer students per teacher (11.6 vs 13.9).
- •Marist Catholic College Penshurst is the larger school with 1,343 students compared with 849.
- •Marist Catholic College Penshurst has grown faster over five years (34% vs -16%).
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 Marist Catholic College Penshurst better than Trinity Catholic College?
On the Success Index, Marist Catholic College Penshurst ranks higher (73.4 vs 69.6 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 Marist Catholic College Penshurst and Trinity Catholic College?
About 129 km in a straight line, between Mortdale and Adamstown in New South Wales.
Which has the better student-to-teacher ratio?
Marist Catholic College Penshurst has 13.9 students per full-time-equivalent teacher and Trinity Catholic College has 11.6.
How do Marist Catholic College Penshurst and Trinity Catholic College rank in NSW?
Marist Catholic College Penshurst is 69th of 539 and Trinity Catholic College is 116th of 539 among secondary schools in New South Wales on the 2025 Success Index.