Overall score
Noarlunga Downs
35.5/100
O'Sullivan Beach
37.9/100
Noarlunga Downs vs O'Sullivan Beach, SA Suburb Comparison
Noarlunga Downs for investment; O'Sullivan Beach for beach lifestyle and schools.
See which suburb leads on livability, safety, schools, and lifestyle.
Head to head
Visual comparison
Noarlunga DownsO'Sullivan Beach
Crime rate
Noarlunga Downs
43.6 / 1k
O'Sullivan Beach
49.2 / 1k
Nearby amenities
Noarlunga Downs
89
O'Sullivan Beach
87
Population
Noarlunga Downs
4,031
O'Sullivan Beach
1,844
Metric leadNoarlunga Downs 7O'Sullivan Beach 32 tiedacross 12 compared metrics
Livability profile
Desirability pillars scored 0–100 vs comparable suburbs
Quick verdicts
Clearer edge on lifestyle fit (score gap ≥ 3)
- Best for beach lifestyleO'Sullivan Beach
- Best for investmentNoarlunga Downs
- Best for best schoolsO'Sullivan Beach
Audience fit
Who each suburb suits — composite scores out of 100
All metrics
Side-by-side scores for every compared metric.
Full comparison table
Exact figures for every metric — winner highlighted in bold.
| Category | Noarlunga Downs | O'Sullivan Beach |
|---|---|---|
| Overall score | 35.5/100 | 37.9/100 |
| Housing (desirability) | 77.9/100 | 70.2/100 |
| Crime rate | 43.6 / 1k | 49.2 / 1k |
| Schools & preschools | 2 | 2 |
| Weather (desirability) | 56.4/100 | 56.4/100 |
| Public transport stops | 34 | 16 |
| Walkability | 30.0/100 | 51.0/100 |
| Nearby amenities | 89 | 87 |
| Planning activity | 43 | 92 |
| Green cover | 3.9% | 7.3% |
| Population | 4,031 | 1,844 |
| SEIFA (IRSAD decile) | 2/10 | 1/10 |
Comparison summary
Noarlunga Downs is a well-serviced metro mid-sized suburb with plenty happening nearby, while O'Sullivan Beach is a beachside smaller community where the coast sets the tone. Where O'Sullivan Beach is shaped by the coast, Noarlunga Downs offers a more landlocked suburban rhythm.
On the data, Noarlunga Downs is stronger for housing affordability, a quieter safety profile, and public transport access; O'Sullivan Beach answers with walkability, tree cover and green space, and overall desirability. On housing, Noarlunga Downs sits in a expensive band, compared with a affordable feel in O'Sullivan Beach.
Choose Noarlunga Downs if you are weighing retirees and families; lean toward O'Sullivan Beach for people chasing a beach lifestyle, investors, and households prioritising schools.
Generated from the official metrics on this page. It can omit nuance or contain errors — check the tables and source notes before relying on it.