Prahran High School vs St Mary's School
A head-to-head comparison of two schools in Victoria, 991 m apart, using official ACARA 2025 data. Best value in each row is highlighted.
Prahran High School
Windsor · Government high school · 7-12
564 students · ICSEA 1080
St Mary's School
St Kilda East · Catholic primary · Prep-6
135 students · ICSEA 1111
| Measure | Prahran High School Windsor VIC | St Mary's School St Kilda East VIC |
|---|---|---|
| Success Index | 75 Top 25% | 71 Top 25% |
| State rank (type) | #73 of 348 | #378 of 1,290 |
| National rank (type) | #173 of 1,472 | #913 of 4,908 |
| Sector | Government | Catholic |
| Type | Secondary | Primary |
| Year range | 7-12 | Prep-6 |
| Students | 564 | 135 |
| Girls / boys | 221 / 343 | 71 / 64 |
| Foundation intake | – | 20 |
| Year 7 cohort | 100 | – |
| Year 12 cohort | 98 | – |
| VCE median study score VCAA, latest year | 29 | – |
| VCE study scores 40+ | 5.4% | – |
| 5-year enrolment growth | +162% | -44% |
| ICSEA Average 1000 | 1080 | 1111 |
| ICSEA percentile | 79th | 87th |
| Top SEA quarter | 35% | 41% |
| Bottom SEA quarter | 12% | 5% |
| Students per teacher | 11.6 | 13.6 |
| Teaching staff (FTE) | 48.2 | 9.9 |
| Non-teaching staff (FTE) | 19.3 | 4.3 |
| Language background other than English | 47% | 22% |
| Indigenous students | 1% | 0% |
| Suburb | Windsor 3181 | St Kilda East 3183 |
| Council area | Stonnington | Port Phillip |
| Remoteness | Major Cities | Major Cities |
| Website | www.prahranhighschool.vic.edu.au | www.smstkildaeast.catholic.edu.au |
The verdict
- •Prahran High School scores higher on the Success Index (74.9 vs 71.1).
- •St Mary's School has the higher ICSEA (1111 vs 1080), indicating a more advantaged community.
- •Prahran High School has fewer students per teacher (11.6 vs 13.6).
- •Prahran High School is the larger school with 564 students compared with 135.
- •Prahran High School has grown faster over five years (162% vs -44%).
- •Prahran High 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 Prahran High School better than St Mary's School?
On the Success Index, Prahran High School ranks higher (74.9 vs 71.1 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 Prahran High School and St Mary's School?
About 991 m in a straight line, between Windsor and St Kilda East in Victoria.
Which has the better student-to-teacher ratio?
Prahran High School has 11.6 students per full-time-equivalent teacher and St Mary's School has 13.6.
How do Prahran High School and St Mary's School rank in VIC?
Prahran High School is 73rd of 348 and St Mary's School is 378th of 1,290 among secondary schools in Victoria on the 2025 Success Index.