South Thornlie Primary School vs Thornlie Senior High School
A head-to-head comparison of two schools in Western Australia, 182 m apart, using official ACARA 2025 data. Best value in each row is highlighted.
South Thornlie Primary School
Thornlie · Government primary · K-6
421 students · ICSEA 997
Thornlie Senior High School
Thornlie · Government high school · 7-12
1,125 students · ICSEA 969
| Measure | South Thornlie Primary School Thornlie WA | Thornlie Senior High School Thornlie WA |
|---|---|---|
| Success Index | 40 Lower 50% | 32 Lower 50% |
| State rank (type) | #379 of 583 | #99 of 140 |
| National rank (type) | #3421 of 4,908 | #1140 of 1,472 |
| Sector | Government | Government |
| Type | Primary | Secondary |
| Year range | K-6 | 7-12 |
| Students | 421 | 1,125 |
| Girls / boys | 201 / 220 | 538 / 587 |
| Foundation intake | 50 | – |
| Year 7 cohort | – | 200 |
| Year 12 cohort | – | 151 |
| VCE median study score VCAA, latest year | – | – |
| VCE study scores 40+ | – | – |
| 5-year enrolment growth | -6% | -3% |
| ICSEA Average 1000 | 997 | 969 |
| ICSEA percentile | 45th | 33th |
| Top SEA quarter | 11% | 6% |
| Bottom SEA quarter | 34% | 47% |
| Students per teacher | 15.9 | 13.8 |
| Teaching staff (FTE) | 25.2 | 81.5 |
| Non-teaching staff (FTE) | 16.0 | 32.6 |
| Language background other than English | 55% | 42% |
| Indigenous students | 7% | 7% |
| Suburb | Thornlie 6108 | Thornlie 6108 |
| Council area | Gosnells | Gosnells |
| Remoteness | Major Cities | Major Cities |
| Website | www.souththornlieps.wa.edu.au | www.det.wa.edu.au/schoolsonline/overview.do?schoolID=4055 |
The verdict
- •South Thornlie Primary School scores higher on the Success Index (40.1 vs 31.7).
- •South Thornlie Primary School has the higher ICSEA (997 vs 969), indicating a more advantaged community.
- •Thornlie Senior High School has fewer students per teacher (13.8 vs 15.9).
- •Thornlie Senior High School is the larger school with 1,125 students compared with 421.
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 South Thornlie Primary School better than Thornlie Senior High School?
On the Success Index, South Thornlie Primary School ranks higher (40.1 vs 31.7 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 South Thornlie Primary School and Thornlie Senior High School?
About 182 m in a straight line, between Thornlie and Thornlie in Western Australia.
Which has the better student-to-teacher ratio?
South Thornlie Primary School has 15.9 students per full-time-equivalent teacher and Thornlie Senior High School has 13.8.
How do South Thornlie Primary School and Thornlie Senior High School rank in WA?
South Thornlie Primary School is 379th of 583 and Thornlie Senior High School is 99th of 140 among primary schools in Western Australia on the 2025 Success Index.