Mortdale Public School vs St Joseph's Catholic Primary School
A head-to-head comparison of two primary schools in New South Wales, 974 m apart, using official ACARA 2025 data. Best value in each row is highlighted.
Mortdale Public School
Mortdale · Government primary · K-6
350 students · ICSEA 1096
St Joseph's Catholic Primary School
Oatley · Catholic primary · K-6
219 students · ICSEA 1131
| Measure | Mortdale Public School Mortdale NSW | St Joseph's Catholic Primary School Oatley NSW |
|---|---|---|
| Success Index | 66 Top 25% | 74 Top 25% |
| State rank (type) | #456 of 1,619 | #173 of 1,619 |
| National rank (type) | #1368 of 4,908 | #631 of 4,908 |
| Sector | Government | Catholic |
| Type | Primary | Primary |
| Year range | K-6 | K-6 |
| Students | 350 | 219 |
| Girls / boys | 167 / 183 | 95 / 124 |
| Foundation intake | 48 | 32 |
| Year 7 cohort | – | – |
| Year 12 cohort | – | – |
| VCE median study score VCAA, latest year | – | – |
| VCE study scores 40+ | – | – |
| 5-year enrolment growth | -14% | +3% |
| ICSEA Average 1000 | 1096 | 1131 |
| ICSEA percentile | 83th | 91th |
| Top SEA quarter | 36% | 49% |
| Bottom SEA quarter | 8% | 2% |
| Students per teacher | 17.7 | 15.6 |
| Teaching staff (FTE) | 19.8 | 14.0 |
| Non-teaching staff (FTE) | 2.9 | 4.7 |
| Language background other than English | 58% | 35% |
| Indigenous students | 1% | 1% |
| Suburb | Mortdale 2223 | Oatley 2223 |
| Council area | Georges River | Georges River |
| Remoteness | Major Cities | Major Cities |
| Website | mortdale-p.schools.nsw.gov.au | stjoatley.syd.catholic.edu.au |
The verdict
- •St Joseph's Catholic Primary School scores higher on the Success Index (74.0 vs 66.1).
- •St Joseph's Catholic Primary School has the higher ICSEA (1131 vs 1096), indicating a more advantaged community.
- •St Joseph's Catholic Primary School has fewer students per teacher (15.6 vs 17.7).
- •Mortdale Public School is the larger school with 350 students compared with 219.
- •St Joseph's Catholic Primary School has grown faster over five years (3% vs -14%).
- •Mortdale Public School is a government school while St Joseph's Catholic Primary 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 Mortdale Public School better than St Joseph's Catholic Primary School?
On the Success Index, St Joseph's Catholic Primary School ranks higher (74.0 vs 66.1 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 Mortdale Public School and St Joseph's Catholic Primary School?
About 974 m in a straight line, between Mortdale and Oatley in New South Wales.
Which has the better student-to-teacher ratio?
Mortdale Public School has 17.7 students per full-time-equivalent teacher and St Joseph's Catholic Primary School has 15.6.
How do Mortdale Public School and St Joseph's Catholic Primary School rank in NSW?
Mortdale Public School is 456th of 1,619 and St Joseph's Catholic Primary School is 173rd of 1,619 among primary schools in New South Wales on the 2025 Success Index.