Seaholme Primary School vs St Mary's School
A head-to-head comparison of two primary schools in Victoria, 1.1 km apart, using official ACARA 2025 data. Best value in each row is highlighted.
Seaholme Primary School
Seaholme · Government primary · Prep-6
298 students · ICSEA 1105
St Mary's School
Altona · Catholic primary · Prep-6
259 students · ICSEA 1060
| Measure | Seaholme Primary School Seaholme VIC | St Mary's School Altona VIC |
|---|---|---|
| Success Index | 73 Top 25% | 63 Top 50% |
| State rank (type) | #325 of 1,290 | #588 of 1,290 |
| National rank (type) | #728 of 4,908 | #1662 of 4,908 |
| Sector | Government | Catholic |
| Type | Primary | Primary |
| Year range | Prep-6 | Prep-6 |
| Students | 298 | 259 |
| Girls / boys | 134 / 164 | 138 / 121 |
| Foundation intake | 39 | 36 |
| Year 7 cohort | – | – |
| Year 12 cohort | – | – |
| VCE median study score VCAA, latest year | – | – |
| VCE study scores 40+ | – | – |
| 5-year enrolment growth | -14% | -6% |
| ICSEA Average 1000 | 1105 | 1060 |
| ICSEA percentile | 86th | 72th |
| Top SEA quarter | 42% | 21% |
| Bottom SEA quarter | 9% | 13% |
| Students per teacher | 14.3 | 13.1 |
| Teaching staff (FTE) | 20.8 | 19.8 |
| Non-teaching staff (FTE) | 8.6 | 11.3 |
| Language background other than English | 31% | 15% |
| Indigenous students | 1% | 0% |
| Suburb | Seaholme 3018 | Altona 3018 |
| Council area | Hobsons Bay | Hobsons Bay |
| Remoteness | Major Cities | Major Cities |
| Website | www.seaholmeps.vic.edu.au | www.smaltona.catholic.edu.au |
The verdict
- •Seaholme Primary School scores higher on the Success Index (73.1 vs 62.9).
- •Seaholme Primary School has the higher ICSEA (1105 vs 1060), indicating a more advantaged community.
- •St Mary's School has fewer students per teacher (13.1 vs 14.3).
- •Seaholme Primary School is the larger school with 298 students compared with 259.
- •St Mary's School has grown faster over five years (-6% vs -14%).
- •Seaholme Primary School is a government school while St Mary's School 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 Seaholme Primary School better than St Mary's School?
On the Success Index, Seaholme Primary School ranks higher (73.1 vs 62.9 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 Seaholme Primary School and St Mary's School?
About 1.1 km in a straight line, between Seaholme and Altona in Victoria.
Which has the better student-to-teacher ratio?
Seaholme Primary School has 14.3 students per full-time-equivalent teacher and St Mary's School has 13.1.
How do Seaholme Primary School and St Mary's School rank in VIC?
Seaholme Primary School is 325th of 1,290 and St Mary's School is 588th of 1,290 among primary schools in Victoria on the 2025 Success Index.