Our Lady of The Rosary Primary School vs St Marys Senior High School
A head-to-head comparison of two schools in New South Wales, 1.2 km apart, using official ACARA 2025 data. Best value in each row is highlighted.
Our Lady of The Rosary Primary School
St Marys · Catholic primary · K-6
368 students · ICSEA 1032
St Marys Senior High School
St Marys · Government high school · 11-12
926 students · ICSEA 1052
| Measure | Our Lady of The Rosary Primary School St Marys NSW | St Marys Senior High School St Marys NSW |
|---|---|---|
| Success Index | 64 Top 50% | 62 Top 50% |
| State rank (type) | #503 of 1,619 | #184 of 539 |
| National rank (type) | #1518 of 4,908 | #463 of 1,472 |
| Sector | Catholic | Government |
| Type | Primary | Secondary |
| Year range | K-6 | 11-12 |
| Students | 368 | 926 |
| Girls / boys | 201 / 167 | 564 / 362 |
| Foundation intake | 53 | – |
| Year 7 cohort | – | – |
| Year 12 cohort | – | 463 |
| VCE median study score VCAA, latest year | – | – |
| VCE study scores 40+ | – | – |
| 5-year enrolment growth | -3% | +2% |
| ICSEA Average 1000 | 1032 | 1052 |
| ICSEA percentile | 61th | 69th |
| Top SEA quarter | 19% | 22% |
| Bottom SEA quarter | 25% | 17% |
| Students per teacher | 13.3 | 13.7 |
| Teaching staff (FTE) | 27.6 | 67.6 |
| Non-teaching staff (FTE) | 5.5 | 13.0 |
| Language background other than English | 63% | 73% |
| Indigenous students | 2% | 2% |
| Suburb | St Marys 2760 | St Marys 2760 |
| Council area | Penrith | Penrith |
| Remoteness | Major Cities | Major Cities |
| Website | www.olorstmarys.catholic.edu.au | stmaryssen-h.schools.nsw.gov.au |
The verdict
- •Our Lady of The Rosary Primary School scores higher on the Success Index (64.3 vs 62.1).
- •St Marys Senior High School has the higher ICSEA (1052 vs 1032), indicating a more advantaged community.
- •St Marys Senior High School is the larger school with 926 students compared with 368.
- •Our Lady of The Rosary Primary School is a catholic school while St Marys Senior High 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 Our Lady of The Rosary Primary School better than St Marys Senior High School?
On the Success Index, Our Lady of The Rosary Primary School ranks higher (64.3 vs 62.1 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 Our Lady of The Rosary Primary School and St Marys Senior High School?
About 1.2 km in a straight line, between St Marys and St Marys in New South Wales.
Which has the better student-to-teacher ratio?
Our Lady of The Rosary Primary School has 13.3 students per full-time-equivalent teacher and St Marys Senior High School has 13.7.
How do Our Lady of The Rosary Primary School and St Marys Senior High School rank in NSW?
Our Lady of The Rosary Primary School is 503rd of 1,619 and St Marys Senior High School is 184th of 539 among primary schools in New South Wales on the 2025 Success Index.