International School of Western Australia vs St John's School
A head-to-head comparison of two schools in Western Australia, 1.2 km apart, using official ACARA 2025 data. Best value in each row is highlighted.
International School of Western Australia
City Beach · Independent combined · PP-12
396 students · ICSEA 1180
St John's School
Scarborough · Catholic primary · PP-6
164 students · ICSEA 1102
| Measure | International School of Western Australia City Beach WA | St John's School Scarborough WA |
|---|---|---|
| Success Index | 90 Top 5% | 71 Top 25% |
| State rank (type) | #2 of 172 | #83 of 583 |
| National rank (type) | #8 of 1,259 | #960 of 4,908 |
| Sector | Independent | Catholic |
| Type | Combined | Primary |
| Year range | PP-12 | PP-6 |
| Students | 396 | 164 |
| Girls / boys | 189 / 207 | 88 / 76 |
| Foundation intake | 23 | 23 |
| Year 7 cohort | 40 | – |
| Year 12 cohort | 35 | – |
| VCE median study score VCAA, latest year | – | – |
| VCE study scores 40+ | – | – |
| 5-year enrolment growth | +32% | -13% |
| ICSEA Average 1000 | 1180 | 1102 |
| ICSEA percentile | 98th | 85th |
| Top SEA quarter | 78% | 39% |
| Bottom SEA quarter | 0% | 7% |
| Students per teacher | 8.4 | 11.8 |
| Teaching staff (FTE) | 47.3 | 13.9 |
| Non-teaching staff (FTE) | 16.5 | 7.0 |
| Language background other than English | 43% | 31% |
| Indigenous students | 0% | 1% |
| Suburb | City Beach 6015 | Scarborough 6019 |
| Council area | Stirling | Stirling |
| Remoteness | Major Cities | Major Cities |
| Website | www.iswa.wa.edu.au | www.stjohns.wa.edu.au/ |
The verdict
- •International School of Western Australia scores higher on the Success Index (89.7 vs 70.7).
- •International School of Western Australia has the higher ICSEA (1180 vs 1102), indicating a more advantaged community.
- •International School of Western Australia has fewer students per teacher (8.4 vs 11.8).
- •International School of Western Australia is the larger school with 396 students compared with 164.
- •International School of Western Australia has grown faster over five years (32% vs -13%).
- •International School of Western Australia is a independent school while St John'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 International School of Western Australia better than St John's School?
On the Success Index, International School of Western Australia ranks higher (89.7 vs 70.7 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 International School of Western Australia and St John's School?
About 1.2 km in a straight line, between City Beach and Scarborough in Western Australia.
Which has the better student-to-teacher ratio?
International School of Western Australia has 8.4 students per full-time-equivalent teacher and St John's School has 11.8.
How do International School of Western Australia and St John's School rank in WA?
International School of Western Australia is 2nd of 172 and St John's School is 83rd of 583 among combined schools in Western Australia on the 2025 Success Index.