Tatachilla Lutheran College vs Willunga High School
A head-to-head comparison of two schools in South Australia, 5.4 km apart, using official ACARA 2025 data. Best value in each row is highlighted.
Tatachilla Lutheran College
Mclaren Vale · Independent combined · R-12
1,103 students · ICSEA 1068
Willunga High School
Willunga · Government high school · U, 7-12
693 students · ICSEA 994
| Measure | Tatachilla Lutheran College Mclaren Vale SA | Willunga High School Willunga SA |
|---|---|---|
| Success Index | 56 Top 50% | 40 Lower 50% |
| State rank (type) | #41 of 145 | #52 of 84 |
| National rank (type) | #540 of 1,259 | #950 of 1,472 |
| Sector | Independent | Government |
| Type | Combined | Secondary |
| Year range | R-12 | U, 7-12 |
| Students | 1,103 | 693 |
| Girls / boys | 566 / 537 | 359 / 334 |
| Foundation intake | 51 | – |
| Year 7 cohort | 123 | 128 |
| Year 12 cohort | 102 | 110 |
| VCE median study score VCAA, latest year | – | – |
| VCE study scores 40+ | – | – |
| 5-year enrolment growth | +1% | -30% |
| ICSEA Average 1000 | 1068 | 994 |
| ICSEA percentile | 75th | 44th |
| Top SEA quarter | 25% | 9% |
| Bottom SEA quarter | 12% | 37% |
| Students per teacher | 12.5 | 14.6 |
| Teaching staff (FTE) | 88.2 | 46.8 |
| Non-teaching staff (FTE) | 42.6 | 25.5 |
| Language background other than English | 4% | 2% |
| Indigenous students | 2% | 4% |
| Suburb | Mclaren Vale 5171 | Willunga 5172 |
| Council area | Onkaparinga | Onkaparinga |
| Remoteness | Major Cities | Major Cities |
| Website | www.tatachilla.sa.edu.au/ | www.whs.sa.edu.au |
The verdict
- •Tatachilla Lutheran College scores higher on the Success Index (55.6 vs 40.0).
- •Tatachilla Lutheran College has the higher ICSEA (1068 vs 994), indicating a more advantaged community.
- •Tatachilla Lutheran College has fewer students per teacher (12.5 vs 14.6).
- •Tatachilla Lutheran College is the larger school with 1,103 students compared with 693.
- •Tatachilla Lutheran College has grown faster over five years (1% vs -30%).
- •Tatachilla Lutheran College is a independent school while Willunga High School is a government school, so fees and enrolment rules differ.
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 Tatachilla Lutheran College better than Willunga High School?
On the Success Index, Tatachilla Lutheran College ranks higher (55.6 vs 40.0 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 Tatachilla Lutheran College and Willunga High School?
About 5.4 km in a straight line, between Mclaren Vale and Willunga in South Australia.
Which has the better student-to-teacher ratio?
Tatachilla Lutheran College has 12.5 students per full-time-equivalent teacher and Willunga High School has 14.6.
How do Tatachilla Lutheran College and Willunga High School rank in SA?
Tatachilla Lutheran College is 41st of 145 and Willunga High School is 52nd of 84 among combined schools in South Australia on the 2025 Success Index.