Our Lady of Mercy Primary School vs St Brigid's School
A head-to-head comparison of two primary schools in Western Australia, 171 km apart, using official ACARA 2025 data. Best value in each row is highlighted.
Our Lady of Mercy Primary School
Girrawheen · Catholic primary · PP-6
334 students · ICSEA 997
St Brigid's School
Collie · Catholic primary · PP-6
178 students · ICSEA 996
| Measure | Our Lady of Mercy Primary School Girrawheen WA | St Brigid's School Collie WA |
|---|---|---|
| Success Index | 50 Top 50% | 45 Lower 50% |
| State rank (type) | #297 of 583 | #337 of 583 |
| National rank (type) | #2694 of 4,908 | #3060 of 4,908 |
| Sector | Catholic | Catholic |
| Type | Primary | Primary |
| Year range | PP-6 | PP-6 |
| Students | 334 | 178 |
| Girls / boys | 165 / 169 | 92 / 86 |
| Foundation intake | 31 | 21 |
| Year 7 cohort | – | – |
| Year 12 cohort | – | – |
| VCE median study score VCAA, latest year | – | – |
| VCE study scores 40+ | – | – |
| 5-year enrolment growth | -6% | +10% |
| ICSEA Average 1000 | 997 | 996 |
| ICSEA percentile | 45th | 45th |
| Top SEA quarter | 9% | 10% |
| Bottom SEA quarter | 38% | 32% |
| Students per teacher | 14.0 | 15.8 |
| Teaching staff (FTE) | 23.8 | 11.3 |
| Non-teaching staff (FTE) | 19.0 | 8.0 |
| Language background other than English | 78% | 7% |
| Indigenous students | 2% | 5% |
| Suburb | Girrawheen 6064 | Collie 6225 |
| Council area | Wanneroo | Collie |
| Remoteness | Major Cities | Inner Regional |
| Website | www.olom.wa.edu.au | www.stbrigidscollie.wa.edu.au/ |
The verdict
- •Our Lady of Mercy Primary School scores higher on the Success Index (49.9 vs 45.3).
- •Our Lady of Mercy Primary School has the higher ICSEA (997 vs 996), indicating a more advantaged community.
- •Our Lady of Mercy Primary School has fewer students per teacher (14.0 vs 15.8).
- •Our Lady of Mercy Primary School is the larger school with 334 students compared with 178.
- •St Brigid's School has grown faster over five years (10% vs -6%).
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 Our Lady of Mercy Primary School better than St Brigid's School?
On the Success Index, Our Lady of Mercy Primary School ranks higher (49.9 vs 45.3 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 Our Lady of Mercy Primary School and St Brigid's School?
About 171 km in a straight line, between Girrawheen and Collie in Western Australia.
Which has the better student-to-teacher ratio?
Our Lady of Mercy Primary School has 14.0 students per full-time-equivalent teacher and St Brigid's School has 15.8.
How do Our Lady of Mercy Primary School and St Brigid's School rank in WA?
Our Lady of Mercy Primary School is 297th of 583 and St Brigid's School is 337th of 583 among primary schools in Western Australia on the 2025 Success Index.