Goolwa Secondary College vs Seaford Secondary College
A head-to-head comparison of two secondary schools in South Australia, 43 km apart, using official ACARA 2025 data. Best value in each row is highlighted.
Goolwa Secondary College
Goolwa · Government high school · 7-12
285 students · ICSEA 957
Seaford Secondary College
Seaford · Government high school · U, 7-12
829 students · ICSEA 962
| Measure | Goolwa Secondary College Goolwa SA | Seaford Secondary College Seaford SA |
|---|---|---|
| Success Index | 33 Lower 50% | 33 Lower 50% |
| State rank (type) | #62 of 84 | #61 of 84 |
| National rank (type) | #1124 of 1,472 | #1107 of 1,472 |
| Sector | Government | Government |
| Type | Secondary | Secondary |
| Year range | 7-12 | U, 7-12 |
| Students | 285 | 829 |
| Girls / boys | 124 / 161 | 388 / 441 |
| Foundation intake | – | – |
| Year 7 cohort | 62 | 106 |
| Year 12 cohort | – | 104 |
| VCE median study score VCAA, latest year | – | – |
| VCE study scores 40+ | – | – |
| 5-year enrolment growth | – | +1% |
| ICSEA Average 1000 | 957 | 962 |
| ICSEA percentile | 27th | 30th |
| Top SEA quarter | 5% | 5% |
| Bottom SEA quarter | 49% | 50% |
| Students per teacher | 11.9 | 13.3 |
| Teaching staff (FTE) | 23.9 | 62.5 |
| Non-teaching staff (FTE) | 14.8 | 39.1 |
| Language background other than English | 3% | 9% |
| Indigenous students | 8% | 7% |
| Suburb | Goolwa 5214 | Seaford 5169 |
| Council area | Alexandrina | Onkaparinga |
| Remoteness | Inner Regional | Major Cities |
| Website | goolwasecondarycollege.sa.edu.au | www.seafordhs.sa.edu.au |
The verdict
- •Both schools have almost identical Success Index scores (32.6 vs 33.3).
- •Seaford Secondary College has the higher ICSEA (962 vs 957), indicating a more advantaged community.
- •Goolwa Secondary College has fewer students per teacher (11.9 vs 13.3).
- •Seaford Secondary College is the larger school with 829 students compared with 285.
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 Goolwa Secondary College better than Seaford Secondary College?
The two schools are very close on the Success Index. Differences in sector, size, year range and distance from home will matter more than the score.
How far apart are Goolwa Secondary College and Seaford Secondary College?
About 43 km in a straight line, between Goolwa and Seaford in South Australia.
Which has the better student-to-teacher ratio?
Goolwa Secondary College has 11.9 students per full-time-equivalent teacher and Seaford Secondary College has 13.3.
How do Goolwa Secondary College and Seaford Secondary College rank in SA?
Goolwa Secondary College is 62nd of 84 and Seaford Secondary College is 61st of 84 among secondary schools in South Australia on the 2025 Success Index.