St Mary's School vs Windsor Primary School
A head-to-head comparison of two primary schools in Victoria, 261 m apart, using official ACARA 2025 data. Best value in each row is highlighted.
St Mary's School
St Kilda East · Catholic primary · Prep-6
135 students · ICSEA 1111
Windsor Primary School
Windsor · Government primary · Prep-6
125 students · ICSEA 1049
| Measure | St Mary's School St Kilda East VIC | Windsor Primary School Windsor VIC |
|---|---|---|
| Success Index | 71 Top 25% | 66 Top 25% |
| State rank (type) | #378 of 1,290 | #518 of 1,290 |
| National rank (type) | #913 of 4,908 | #1428 of 4,908 |
| Sector | Catholic | Government |
| Type | Primary | Primary |
| Year range | Prep-6 | Prep-6 |
| Students | 135 | 125 |
| Girls / boys | 71 / 64 | 73 / 52 |
| Foundation intake | 20 | 10 |
| Year 7 cohort | – | – |
| Year 12 cohort | – | – |
| VCE median study score VCAA, latest year | – | – |
| VCE study scores 40+ | – | – |
| 5-year enrolment growth | -44% | -28% |
| ICSEA Average 1000 | 1111 | 1049 |
| ICSEA percentile | 87th | 68th |
| Top SEA quarter | 41% | 28% |
| Bottom SEA quarter | 5% | 24% |
| Students per teacher | 13.6 | 10.3 |
| Teaching staff (FTE) | 9.9 | 12.0 |
| Non-teaching staff (FTE) | 4.3 | 6.2 |
| Language background other than English | 22% | 50% |
| Indigenous students | 0% | 4% |
| Suburb | St Kilda East 3183 | Windsor 3181 |
| Council area | Port Phillip | Stonnington |
| Remoteness | Major Cities | Major Cities |
| Website | www.smstkildaeast.catholic.edu.au | www.windsorps.vic.edu.au/ |
The verdict
- •St Mary's School scores higher on the Success Index (71.1 vs 65.5).
- •St Mary's School has the higher ICSEA (1111 vs 1049), indicating a more advantaged community.
- •Windsor Primary School has fewer students per teacher (10.3 vs 13.6).
- •St Mary's School is the larger school with 135 students compared with 125.
- •Windsor Primary School has grown faster over five years (-28% vs -44%).
- •St Mary's School is a catholic school while Windsor Primary 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 St Mary's School better than Windsor Primary School?
On the Success Index, St Mary's School ranks higher (71.1 vs 65.5 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 St Mary's School and Windsor Primary School?
About 261 m in a straight line, between St Kilda East and Windsor in Victoria.
Which has the better student-to-teacher ratio?
St Mary's School has 13.6 students per full-time-equivalent teacher and Windsor Primary School has 10.3.
How do St Mary's School and Windsor Primary School rank in VIC?
St Mary's School is 378th of 1,290 and Windsor Primary School is 518th of 1,290 among primary schools in Victoria on the 2025 Success Index.