Colyton High School vs St Marys South Public School
A head-to-head comparison of two schools in New South Wales, 2.0 km apart, using official ACARA 2025 data. Best value in each row is highlighted.
Colyton High School
St Marys · Government high school · 7-12
765 students · ICSEA 922
St Marys South Public School
St Marys · Government primary · K-6
319 students · ICSEA 945
| Measure | Colyton High School St Marys NSW | St Marys South Public School St Marys NSW |
|---|---|---|
| Success Index | 27 Lower 50% | 24 Lower 50% |
| State rank (type) | #462 of 539 | #1491 of 1,619 |
| National rank (type) | #1267 of 1,472 | #4539 of 4,908 |
| Sector | Government | Government |
| Type | Secondary | Primary |
| Year range | 7-12 | K-6 |
| Students | 765 | 319 |
| Girls / boys | 383 / 382 | 165 / 154 |
| Foundation intake | – | 48 |
| Year 7 cohort | 141 | – |
| Year 12 cohort | 79 | – |
| VCE median study score VCAA, latest year | – | – |
| VCE study scores 40+ | – | – |
| 5-year enrolment growth | -1% | -1% |
| ICSEA Average 1000 | 922 | 945 |
| ICSEA percentile | 16th | 23th |
| Top SEA quarter | 3% | 4% |
| Bottom SEA quarter | 63% | 56% |
| Students per teacher | 12.6 | 16.8 |
| Teaching staff (FTE) | 60.9 | 19.0 |
| Non-teaching staff (FTE) | 13.7 | 2.9 |
| Language background other than English | 42% | 40% |
| Indigenous students | 11% | 8% |
| Suburb | St Marys 2760 | St Marys 2760 |
| Council area | Penrith | Penrith |
| Remoteness | Major Cities | Major Cities |
| Website | colyton-h.schools.nsw.gov.au | stmarysth-p.schools.nsw.gov.au |
The verdict
- •Colyton High School scores higher on the Success Index (26.6 vs 24.4).
- •St Marys South Public School has the higher ICSEA (945 vs 922), indicating a more advantaged community.
- •Colyton High School has fewer students per teacher (12.6 vs 16.8).
- •Colyton High School is the larger school with 765 students compared with 319.
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 Colyton High School better than St Marys South Public School?
On the Success Index, Colyton High School ranks higher (26.6 vs 24.4 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 Colyton High School and St Marys South Public School?
About 2.0 km in a straight line, between St Marys and St Marys in New South Wales.
Which has the better student-to-teacher ratio?
Colyton High School has 12.6 students per full-time-equivalent teacher and St Marys South Public School has 16.8.
How do Colyton High School and St Marys South Public School rank in NSW?
Colyton High School is 462nd of 539 and St Marys South Public School is 1491st of 1,619 among secondary schools in New South Wales on the 2025 Success Index.