Mary Immaculate Catholic Primary School vs William Stimson Public School
A head-to-head comparison of two primary schools in New South Wales, 1.5 km apart, using official ACARA 2025 data. Best value in each row is highlighted.
Mary Immaculate Catholic Primary School
Bossley Park · Catholic primary · K-6
641 students · ICSEA 1009
William Stimson Public School
Wetherill Park · Government primary · K-6
459 students · ICSEA 973
| Measure | Mary Immaculate Catholic Primary School Bossley Park NSW | William Stimson Public School Wetherill Park NSW |
|---|---|---|
| Success Index | 43 Lower 50% | 39 Lower 50% |
| State rank (type) | #1034 of 1,619 | #1119 of 1,619 |
| National rank (type) | #3223 of 4,908 | #3502 of 4,908 |
| Sector | Catholic | Government |
| Type | Primary | Primary |
| Year range | K-6 | K-6 |
| Students | 641 | 459 |
| Girls / boys | 329 / 312 | 231 / 228 |
| Foundation intake | 83 | 52 |
| Year 7 cohort | – | – |
| Year 12 cohort | – | – |
| VCE median study score VCAA, latest year | – | – |
| VCE study scores 40+ | – | – |
| 5-year enrolment growth | -5% | -13% |
| ICSEA Average 1000 | 1009 | 973 |
| ICSEA percentile | 51th | 34th |
| Top SEA quarter | 14% | 7% |
| Bottom SEA quarter | 33% | 45% |
| Students per teacher | 16.5 | 12.4 |
| Teaching staff (FTE) | 38.9 | 37.0 |
| Non-teaching staff (FTE) | 9.8 | 13.2 |
| Language background other than English | 99% | 78% |
| Indigenous students | 0% | 3% |
| Suburb | Bossley Park 2176 | Wetherill Park 2164 |
| Council area | Fairfield | Fairfield |
| Remoteness | Major Cities | Major Cities |
| Website | mibossleypark.syd.catholic.edu.au | wilstimson-p.schools.nsw.gov.au |
The verdict
- •Mary Immaculate Catholic Primary School scores higher on the Success Index (43.0 vs 39.0).
- •Mary Immaculate Catholic Primary School has the higher ICSEA (1009 vs 973), indicating a more advantaged community.
- •William Stimson Public School has fewer students per teacher (12.4 vs 16.5).
- •Mary Immaculate Catholic Primary School is the larger school with 641 students compared with 459.
- •Mary Immaculate Catholic Primary School has grown faster over five years (-5% vs -13%).
- •Mary Immaculate Catholic Primary School is a catholic school while William Stimson Public 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 Mary Immaculate Catholic Primary School better than William Stimson Public School?
On the Success Index, Mary Immaculate Catholic Primary School ranks higher (43.0 vs 39.0 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 Mary Immaculate Catholic Primary School and William Stimson Public School?
About 1.5 km in a straight line, between Bossley Park and Wetherill Park in New South Wales.
Which has the better student-to-teacher ratio?
Mary Immaculate Catholic Primary School has 16.5 students per full-time-equivalent teacher and William Stimson Public School has 12.4.
How do Mary Immaculate Catholic Primary School and William Stimson Public School rank in NSW?
Mary Immaculate Catholic Primary School is 1034th of 1,619 and William Stimson Public School is 1119th of 1,619 among primary schools in New South Wales on the 2025 Success Index.