O'Sullivan Beach SA 5166
O'Sullivan Beach is in Onkaparinga LGA, SA, postcode 5166, with population 1,844.
Strong evidence
O'Sullivan Beach has enough direct local evidence for a first-pass decision.
Direct signals include Property prices, Crime, Schools, and Transport. Missing or weaker areas are still shown so the page does not overstate precision.
892 latest-year approvals in Onkaparinga, +0.0% YoY; population +0.9% YoY (1.1% 5yr).
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Release-based suburb price series, not a live market feed
This gives you directional coverage, but it is weaker than a current rent release.
Schools, transport, and hospitals are useful as presence signals, but they still have different source cadences.
O'Sullivan Beach has enough direct local evidence for a first-pass decision.
Direct signals include Property prices, Crime, Schools, and Transport. Missing or weaker areas are still shown so the page does not overstate precision.
Use compare to test the suburb against another candidate, then validate financial assumptions in the calculator where available.
Property prices, Crime, Schools, Transport
Market rent
Hospitals
O'Sullivan Beach currently reads as a livability-led candidate.
Transport coverage adds a practical access signal. Gross yield looks low for an income-first use case.
Compare it against a contrasting suburb before turning it into a decision.
Transport coverage adds a practical access signal.
Gross yield looks low for an income-first use case.
No decisive evidence gap was detected from the current inputs.
Compare-ready
- Buyers want a quick sense of price, schools, and neighbourhood scale before getting lost in data.
- Investors want to know whether rent, yield, and affordability broadly support the suburb story.
- Researchers want one place that ties property, demographics, transport, and services together.
Price history
Full data detail
O'Sullivan Beach SA
O'Sullivan Beach is a small community in South Australia within the Onkaparinga local government area (postcode 5166). With a population of 1,844, the suburb has an established demographic with a median age of 44. Households earn a median income of $56K per year, with an average household size of 2.2 people. Recent annual estimates show population movement staying broadly stable across the broader catchment, with population growth running at +0.9% year-on-year at the LGA level. SA employment has moved +2.1% year-on-year in the official Jobs and Skills Australia NERO series, which provides the broader jobs backdrop for this suburb. SA also had 23 Commonwealth-backed major projects under construction, 2 underway, and 11 in planning as at 2 October 2024, which is useful as a broader delivery backdrop rather than a suburb-specific project count. The most common occupations are technicians & trades, community & personal service, labourers. Employment in the area leans toward healthcare and construction. The top ancestries reported are English, Australian, Scottish.
The median house price in O'Sullivan Beach is $788,000, having risen modestly 1.4% over the past year. The median weekly rent is $300 (Census 2021). This gives a gross rental yield of approximately 2.0%. The median monthly mortgage repayment is $1,200.
O'Sullivan Beach is served by 2 schools, including 1 primary, 1 combined. The average ICSEA score is 1010, which is around the national average of 1,000. Public transport access includes 16 bus stops. The crime rate in the Onkaparinga LGA is moderate at 5,965 incidents per 100,000 population.
From an investment perspective, O'Sullivan Beach offers a gross rental yield of 2.0%, rated as low yield. Property prices are near the state median ($788K/$950K). The price-to-income ratio of 14.1x is considered stretched. House prices have moved +1.4% year-on-year. Population growth of +0.9% year-on-year indicates stable demand fundamentals. Building approvals have changed +0% year-on-year, indicating steady development activity.
O'Sullivan Beach is a small community in South Australia within the Onkaparinga local government area (postcode 5166). With a population of 1,844, the suburb has an established demographic with a median age of 44. Households earn a median income of $56K per year, with an average household size of 2.2 people. Recent annual estimates show population movement staying broadly stable across the broader catchment, with population growth running at +0.9% year-on-year at the LGA level. SA employment has moved +2.1% year-on-year in the official Jobs and Skills Australia NERO series, which provides the broader jobs backdrop for this suburb. SA also had 23 Commonwealth-backed major projects under construction, 2 underway, and 11 in planning as at 2 October 2024, which is useful as a broader delivery backdrop rather than a suburb-specific project count. The most common occupations are technicians & trades, community & personal service, labourers. Employment in the area leans toward healthcare and construction. The top ancestries reported are English, Australian, Scottish.
The median house price in O'Sullivan Beach is $788,000, having risen modestly 1.4% over the past year. The median weekly rent is $300 (Census 2021). This gives a gross rental yield of approximately 2.0%. The median monthly mortgage repayment is $1,200.
O'Sullivan Beach is served by 2 schools, including 1 primary, 1 combined. The average ICSEA score is 1010, which is around the national average of 1,000. Public transport access includes 16 bus stops. The crime rate in the Onkaparinga LGA is moderate at 5,965 incidents per 100,000 population.
From an investment perspective, O'Sullivan Beach offers a gross rental yield of 2.0%, rated as low yield. Property prices are near the state median ($788K/$950K). The price-to-income ratio of 14.1x is considered stretched. House prices have moved +1.4% year-on-year. Population growth of +0.9% year-on-year indicates stable demand fundamentals. Building approvals have changed +0% year-on-year, indicating steady development activity.
O'Sullivan Beach FAQ
Common questions-
What LGA is O'Sullivan Beach in?
O'Sullivan Beach is in the Onkaparinga Local Government Area, SA, postcode 5166. Council-level context for Onkaparinga LGA (suburb mix, population, rent, and price coverage) is available on the QuickProperty LGA page.
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What is the median house price in O'Sullivan Beach?
The current median house price in O'Sullivan Beach, SA is $788K, based on the latest available sales data from state Valuers General offices and ABS Data by Region.
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What is the typical weekly rent in O'Sullivan Beach?
The median weekly rent in O'Sullivan Beach is $300/wk, based on ABS Census 2021 rent fallback.
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Is O'Sullivan Beach a good investment?
QuickProperty's investment signals for O'Sullivan Beach show: Low Yield, Near Median, Stretched. These are computed from price, rent, income, and population data — not an opaque score.
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Where does QuickProperty get its data for O'Sullivan Beach?
Property prices come from state Valuers General offices and ABS Data by Region. Demographics are from ABS Census 2021. School ICSEA scores are from ACARA. Crime statistics are from state police agencies. Transport data is sourced from GTFS feeds.
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How often is the O'Sullivan Beach data updated?
Property prices update quarterly. RBA macro indicators update with each deploy. Demographics are from Census 2021. School ICSEA scores are from ACARA 2025.