Colac Secondary College vs Trinity College Colac
A head-to-head comparison of two secondary schools in Victoria, 991 m apart, using official ACARA 2025 data. Best value in each row is highlighted.
Colac Secondary College
Colac · Government high school · 7-12
476 students · ICSEA 955
Trinity College Colac
Colac · Catholic high school · 7-12
744 students · ICSEA 1015
| Measure | Colac Secondary College Colac VIC | Trinity College Colac Colac VIC |
|---|---|---|
| Success Index | 44 Lower 50% | 57 Top 50% |
| State rank (type) | #248 of 348 | #172 of 348 |
| National rank (type) | #863 of 1,472 | #585 of 1,472 |
| Sector | Government | Catholic |
| Type | Secondary | Secondary |
| Year range | 7-12 | 7-12 |
| Students | 476 | 744 |
| Girls / boys | 225 / 251 | 379 / 365 |
| Foundation intake | – | – |
| Year 7 cohort | 78 | 154 |
| Year 12 cohort | 51 | 88 |
| VCE median study score VCAA, latest year | 25 | 28 |
| VCE study scores 40+ | 2.1% | 4% |
| 5-year enrolment growth | +3% | +2% |
| ICSEA Average 1000 | 955 | 1015 |
| ICSEA percentile | 27th | 54th |
| Top SEA quarter | 3% | 11% |
| Bottom SEA quarter | 54% | 29% |
| Students per teacher | 9.5 | 10.8 |
| Teaching staff (FTE) | 49.6 | 68.6 |
| Non-teaching staff (FTE) | 21.6 | 38.5 |
| Language background other than English | 5% | 9% |
| Indigenous students | 3% | 2% |
| Suburb | Colac 3250 | Colac 3250 |
| Council area | Colac Otway | Colac Otway |
| Remoteness | Inner Regional | Inner Regional |
| Website | www.colac-sc.vic.edu.au | www.tcc.vic.edu.au |
The verdict
- •Trinity College Colac scores higher on the Success Index (56.9 vs 43.7).
- •Trinity College Colac has the higher ICSEA (1015 vs 955), indicating a more advantaged community.
- •Colac Secondary College has fewer students per teacher (9.5 vs 10.8).
- •Trinity College Colac is the larger school with 744 students compared with 476.
- •Colac Secondary College is a government school while Trinity College Colac is a catholic 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 Colac Secondary College better than Trinity College Colac?
On the Success Index, Trinity College Colac ranks higher (56.9 vs 43.7 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 Colac Secondary College and Trinity College Colac?
About 991 m in a straight line, between Colac and Colac in Victoria.
Which has the better student-to-teacher ratio?
Colac Secondary College has 9.5 students per full-time-equivalent teacher and Trinity College Colac has 10.8.
How do Colac Secondary College and Trinity College Colac rank in VIC?
Colac Secondary College is 248th of 348 and Trinity College Colac is 172nd of 348 among secondary schools in Victoria on the 2025 Success Index.