Aldinga Beach SA

Postcode 5173 · Onkaparinga LGA

Aldinga Beach is a well-established suburb in South Australia within the Onkaparinga local government area (postcode 5173). With a population of 10,667, the suburb has an established demographic with a median age of 39. Households earn a median income of $67K per year, with an average household size of 2.5 people. The most common occupations are technicians & trades, community & personal service, professionals. The top ancestries reported are English, Australian, Scottish.

The median house price in Aldinga Beach is $800,000, having risen modestly 1.5% over the past year. The current median weekly rent is $542. This gives a gross rental yield of approximately 3.5%. The median monthly mortgage repayment is $1,408.

Public transport access includes 62 bus stops. The crime rate in the Onkaparinga LGA is below average at 3,384 incidents per 100,000 population.

From an investment perspective, Aldinga Beach offers a gross rental yield of 3.5%, rated as moderate yield. Property prices are near the state median ($800K/$950K). The price-to-income ratio of 11.9x is considered stretched. House prices have moved +1.5% year-on-year.

INVESTMENT SIGNALS
Rental Yield3.5% Moderate Yield
Price vs State$800K/$950K Near Median
Affordability11.9x Stretched
Price Momentum+1.5% Stable
SEIFA INDEX (ABS)
Advantage3/10
Education3/10
Economic3/10
Disadvantage2/10
MEDIAN HOUSE
$800K
1.5% YoY
MEDIAN RENT /WK
$320
POPULATION
10,667
DEMOGRAPHICS
Median Age39
Household Size2.5
HH Income /wk$1,297
Personal Income /wk$658
Mortgage /mth$1,408
CRIME (Onkaparinga LGA)
Crime Rate (per 100k)3,384
Total Incidents361
TRANSPORT
Bus Stops62
Data: 2025-Q4