O'Sullivan Beach, SA
Suburb profile from official open data — demographics, market signals, schools and safety.
At a glance
- Population
- 1,844
- Median age
- 44
- Household income
- $1,072/wk
- Owner-occupied
- 68%
- Renting
- 29%
- Socio-economic advantage
- Decile 1/10 in SA
- Nearest emergency dept
- Noarlunga Hospital · 3.1 km
Sources: ABS Census 2021 & SEIFA 2021 (CC BY 4.0); distances are straight-line from the suburb's address centroid.
Community safety
110 recorded incidents in 2025 · down 1.8% vs 2024
Growth & supply · Christies Beach
District population (2025)
11,690
+13% over 10 years
New homes approved (12 mths to May 2026)
252
houses 81 · other 171
ABS statistical district (SA2) containing the suburb centre (CC BY 4.0).
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All figures from official open data with attribution; estimates and medians are statistical outputs, not valuations. Suburb boundaries follow ABS Suburbs and Localities (SAL) 2021.