Southern River College vs Thornlie Senior High School
A head-to-head comparison of two secondary schools in Western Australia, 3.0 km apart, using official ACARA 2025 data. Best value in each row is highlighted.
Southern River College
Gosnells · Government high school · 7-12
1,209 students · ICSEA 941
Thornlie Senior High School
Thornlie · Government high school · 7-12
1,125 students · ICSEA 969
| Measure | Southern River College Gosnells WA | Thornlie Senior High School Thornlie WA |
|---|---|---|
| Success Index | 30 Lower 50% | 32 Lower 50% |
| State rank (type) | #108 of 140 | #99 of 140 |
| National rank (type) | #1183 of 1,472 | #1140 of 1,472 |
| Sector | Government | Government |
| Type | Secondary | Secondary |
| Year range | 7-12 | 7-12 |
| Students | 1,209 | 1,125 |
| Girls / boys | 559 / 650 | 538 / 587 |
| Foundation intake | – | – |
| Year 7 cohort | 216 | 200 |
| Year 12 cohort | 161 | 151 |
| VCE median study score VCAA, latest year | – | – |
| VCE study scores 40+ | – | – |
| 5-year enrolment growth | +29% | -3% |
| ICSEA Average 1000 | 941 | 969 |
| ICSEA percentile | 22th | 33th |
| Top SEA quarter | 5% | 6% |
| Bottom SEA quarter | 54% | 47% |
| Students per teacher | 15.8 | 13.8 |
| Teaching staff (FTE) | 76.6 | 81.5 |
| Non-teaching staff (FTE) | 43.1 | 32.6 |
| Language background other than English | 44% | 42% |
| Indigenous students | 13% | 7% |
| Suburb | Gosnells 6110 | Thornlie 6108 |
| Council area | Gosnells | Gosnells |
| Remoteness | Major Cities | Major Cities |
| Website | www.southernrivercollege.wa.edu.au | www.det.wa.edu.au/schoolsonline/overview.do?schoolID=4055 |
The verdict
- •Thornlie Senior High School scores higher on the Success Index (31.7 vs 30.0).
- •Thornlie Senior High School has the higher ICSEA (969 vs 941), indicating a more advantaged community.
- •Thornlie Senior High School has fewer students per teacher (13.8 vs 15.8).
- •Southern River College is the larger school with 1,209 students compared with 1,125.
- •Southern River College has grown faster over five years (29% vs -3%).
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 Southern River College better than Thornlie Senior High School?
On the Success Index, Thornlie Senior High School ranks higher (31.7 vs 30.0 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 Southern River College and Thornlie Senior High School?
About 3.0 km in a straight line, between Gosnells and Thornlie in Western Australia.
Which has the better student-to-teacher ratio?
Southern River College has 15.8 students per full-time-equivalent teacher and Thornlie Senior High School has 13.8.
How do Southern River College and Thornlie Senior High School rank in WA?
Southern River College is 108th of 140 and Thornlie Senior High School is 99th of 140 among secondary schools in Western Australia on the 2025 Success Index.