Adelaide Secondary School of English vs Seaford Secondary College
A head-to-head comparison of two secondary schools in South Australia, 34 km apart, using official ACARA 2025 data. Best value in each row is highlighted.
Adelaide Secondary School of English
West Croydon · Government high school · U
487 students · ICSEA 961
Seaford Secondary College
Seaford · Government high school · U, 7-12
829 students · ICSEA 962
| Measure | Adelaide Secondary School of English West Croydon SA | Seaford Secondary College Seaford SA |
|---|---|---|
| Success Index | 56 Top 50% | 33 Lower 50% |
| State rank (type) | #29 of 84 | #61 of 84 |
| National rank (type) | #596 of 1,472 | #1107 of 1,472 |
| Sector | Government | Government |
| Type | Secondary | Secondary |
| Year range | U | U, 7-12 |
| Students | 487 | 829 |
| Girls / boys | 241 / 246 | 388 / 441 |
| Foundation intake | – | – |
| Year 7 cohort | – | 106 |
| Year 12 cohort | – | 104 |
| VCE median study score VCAA, latest year | – | – |
| VCE study scores 40+ | – | – |
| 5-year enrolment growth | +53% | +1% |
| ICSEA Average 1000 | 961 | 962 |
| ICSEA percentile | 29th | 30th |
| Top SEA quarter | 14% | 5% |
| Bottom SEA quarter | 53% | 50% |
| Students per teacher | 6.6 | 13.3 |
| Teaching staff (FTE) | 74.1 | 62.5 |
| Non-teaching staff (FTE) | 27.8 | 39.1 |
| Language background other than English | 100% | 9% |
| Indigenous students | 0% | 7% |
| Suburb | West Croydon 5008 | Seaford 5169 |
| Council area | Charles Sturt | Onkaparinga |
| Remoteness | Major Cities | Major Cities |
| Website | www.adsecenglish.sa.edu.au | www.seafordhs.sa.edu.au |
The verdict
- •Adelaide Secondary School of English scores higher on the Success Index (56.3 vs 33.3).
- •Seaford Secondary College has the higher ICSEA (962 vs 961), indicating a more advantaged community.
- •Adelaide Secondary School of English has fewer students per teacher (6.6 vs 13.3).
- •Seaford Secondary College is the larger school with 829 students compared with 487.
- •Adelaide Secondary School of English has grown faster over five years (53% vs 1%).
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 Adelaide Secondary School of English better than Seaford Secondary College?
On the Success Index, Adelaide Secondary School of English ranks higher (56.3 vs 33.3 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 Adelaide Secondary School of English and Seaford Secondary College?
About 34 km in a straight line, between West Croydon and Seaford in South Australia.
Which has the better student-to-teacher ratio?
Adelaide Secondary School of English has 6.6 students per full-time-equivalent teacher and Seaford Secondary College has 13.3.
How do Adelaide Secondary School of English and Seaford Secondary College rank in SA?
Adelaide Secondary School of English is 29th of 84 and Seaford Secondary College is 61st of 84 among secondary schools in South Australia on the 2025 Success Index.