Marrickville High School vs St Marys Senior High School
A head-to-head comparison of two secondary schools in New South Wales, 39 km apart, using official ACARA 2025 data. Best value in each row is highlighted.
Marrickville High School
Marrickville · Government high school · 7-12
625 students · ICSEA 1052
St Marys Senior High School
St Marys · Government high school · 11-12
926 students · ICSEA 1052
| Measure | Marrickville High School Marrickville NSW | St Marys Senior High School St Marys NSW |
|---|---|---|
| Success Index | 75 Top 25% | 62 Top 50% |
| State rank (type) | #60 of 539 | #184 of 539 |
| National rank (type) | #167 of 1,472 | #463 of 1,472 |
| Sector | Government | Government |
| Type | Secondary | Secondary |
| Year range | 7-12 | 11-12 |
| Students | 625 | 926 |
| Girls / boys | 240 / 385 | 564 / 362 |
| Foundation intake | – | – |
| Year 7 cohort | 102 | – |
| Year 12 cohort | 95 | 463 |
| VCE median study score VCAA, latest year | – | – |
| VCE study scores 40+ | – | – |
| 5-year enrolment growth | +33% | +2% |
| ICSEA Average 1000 | 1052 | 1052 |
| ICSEA percentile | 69th | 69th |
| Top SEA quarter | 28% | 22% |
| Bottom SEA quarter | 19% | 17% |
| Students per teacher | 9.2 | 13.7 |
| Teaching staff (FTE) | 67.9 | 67.6 |
| Non-teaching staff (FTE) | 19.0 | 13.0 |
| Language background other than English | 42% | 73% |
| Indigenous students | 4% | 2% |
| Suburb | Marrickville 2204 | St Marys 2760 |
| Council area | Inner West | Penrith |
| Remoteness | Major Cities | Major Cities |
| Website | marrickvil-h.schools.nsw.gov.au | stmaryssen-h.schools.nsw.gov.au |
The verdict
- •Marrickville High School scores higher on the Success Index (75.1 vs 62.1).
- •Marrickville High School has fewer students per teacher (9.2 vs 13.7).
- •St Marys Senior High School is the larger school with 926 students compared with 625.
- •Marrickville High School has grown faster over five years (33% vs 2%).
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 Marrickville High School better than St Marys Senior High School?
On the Success Index, Marrickville High School ranks higher (75.1 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 Marrickville High School and St Marys Senior High School?
About 39 km in a straight line, between Marrickville and St Marys in New South Wales.
Which has the better student-to-teacher ratio?
Marrickville High School has 9.2 students per full-time-equivalent teacher and St Marys Senior High School has 13.7.
How do Marrickville High School and St Marys Senior High School rank in NSW?
Marrickville High School is 60th of 539 and St Marys Senior High School is 184th of 539 among secondary schools in New South Wales on the 2025 Success Index.