Lonsdale Heights Primary School vs O'Sullivan Beach Primary School
A head-to-head comparison of two primary schools in South Australia, 2.0 km apart, using official ACARA 2025 data. Best value in each row is highlighted.
Lonsdale Heights Primary School
Christie Downs · Government primary · U, R-6
71 students · ICSEA 949
O'Sullivan Beach Primary School
O'Sullivan Beach · Government primary · R-6
84 students · ICSEA 926
| Measure | Lonsdale Heights Primary School Christie Downs SA | O'Sullivan Beach Primary School O'Sullivan Beach SA |
|---|---|---|
| Success Index | 34 Lower 50% | 27 Lower 50% |
| State rank (type) | – | #309 of 348 |
| National rank (type) | – | #4338 of 4,908 |
| Sector | Government | Government |
| Type | Primary | Primary |
| Year range | U, R-6 | R-6 |
| Students | 71 | 84 |
| Girls / boys | 32 / 39 | 42 / 42 |
| Foundation intake | 11 | 15 |
| Year 7 cohort | – | – |
| Year 12 cohort | – | – |
| VCE median study score VCAA, latest year | – | – |
| VCE study scores 40+ | – | – |
| 5-year enrolment growth | -35% | -30% |
| ICSEA Average 1000 | 949 | 926 |
| ICSEA percentile | 24th | 17th |
| Top SEA quarter | 6% | 2% |
| Bottom SEA quarter | 50% | 65% |
| Students per teacher | 11.1 | 12.0 |
| Teaching staff (FTE) | 6.4 | 7.0 |
| Non-teaching staff (FTE) | 9.2 | 6.3 |
| Language background other than English | 6% | 5% |
| Indigenous students | 11% | 12% |
| Suburb | Christie Downs 5164 | O'Sullivan Beach 5166 |
| Council area | Onkaparinga | Onkaparinga |
| Remoteness | Major Cities | Major Cities |
| Website | lonsdaleheightsps.sa.edu.au/ | www.osbs.sa.edu.au |
The verdict
- •Lonsdale Heights Primary School scores higher on the Success Index (34.1 vs 27.2).
- •Lonsdale Heights Primary School has the higher ICSEA (949 vs 926), indicating a more advantaged community.
- •Lonsdale Heights Primary School has fewer students per teacher (11.1 vs 12.0).
- •O'Sullivan Beach Primary School is the larger school with 84 students compared with 71.
- •O'Sullivan Beach Primary School has grown faster over five years (-30% vs -35%).
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 Lonsdale Heights Primary School better than O'Sullivan Beach Primary School?
On the Success Index, Lonsdale Heights Primary School ranks higher (34.1 vs 27.2 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 Lonsdale Heights Primary School and O'Sullivan Beach Primary School?
About 2.0 km in a straight line, between Christie Downs and O'Sullivan Beach in South Australia.
Which has the better student-to-teacher ratio?
Lonsdale Heights Primary School has 11.1 students per full-time-equivalent teacher and O'Sullivan Beach Primary School has 12.0.
How do Lonsdale Heights Primary School and O'Sullivan Beach Primary School rank in SA?
Lonsdale Heights Primary School is unranked and O'Sullivan Beach Primary School is 309th of 348 among primary schools in South Australia on the 2025 Success Index.