Mercedes College vs Trinity College
A head-to-head comparison of two schools in Western Australia, 1.6 km apart, using official ACARA 2025 data. Best value in each row is highlighted.
Mercedes College
Perth · Independent high school · 7-12
910 students · ICSEA 1122
Trinity College
East Perth · Catholic combined · 4-12
1,347 students · ICSEA 1113
| Measure | Mercedes College Perth WA | Trinity College East Perth WA |
|---|---|---|
| Success Index | 81 Top 5% | 71 Top 25% |
| State rank (type) | #1 of 140 | #22 of 172 |
| National rank (type) | #51 of 1,472 | #235 of 1,259 |
| Sector | Independent | Catholic |
| Type | Secondary | Combined |
| Year range | 7-12 | 4-12 |
| Students | 910 | 1,347 |
| Girls / boys | 910 / 0 | 0 / 1,347 |
| Foundation intake | – | – |
| Year 7 cohort | 178 | 192 |
| Year 12 cohort | 125 | 162 |
| VCE median study score VCAA, latest year | – | – |
| VCE study scores 40+ | – | – |
| 5-year enrolment growth | +9% | +11% |
| ICSEA Average 1000 | 1122 | 1113 |
| ICSEA percentile | 90th | 87th |
| Top SEA quarter | 49% | 46% |
| Bottom SEA quarter | 5% | 5% |
| Students per teacher | 11.9 | 11.3 |
| Teaching staff (FTE) | 76.6 | 119.1 |
| Non-teaching staff (FTE) | 36.0 | 73.3 |
| Language background other than English | 25% | 18% |
| Indigenous students | 2% | 4% |
| Suburb | Perth 6000 | East Perth 6004 |
| Council area | Perth | Perth |
| Remoteness | Major Cities | Major Cities |
| Website | www.mercedes.wa.edu.au | www.trinity.wa.edu.au |
The verdict
- •Mercedes College scores higher on the Success Index (81.2 vs 71.4).
- •Mercedes College has the higher ICSEA (1122 vs 1113), indicating a more advantaged community.
- •Trinity College has fewer students per teacher (11.3 vs 11.9).
- •Trinity College is the larger school with 1,347 students compared with 910.
- •Mercedes College is a independent school while Trinity College 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 Mercedes College better than Trinity College?
On the Success Index, Mercedes College ranks higher (81.2 vs 71.4 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 Mercedes College and Trinity College?
About 1.6 km in a straight line, between Perth and East Perth in Western Australia.
Which has the better student-to-teacher ratio?
Mercedes College has 11.9 students per full-time-equivalent teacher and Trinity College has 11.3.
How do Mercedes College and Trinity College rank in WA?
Mercedes College is 1st of 140 and Trinity College is 22nd of 172 among secondary schools in Western Australia on the 2025 Success Index.