Located in South Australia within the Onkaparinga local government area, Aldinga is a close-knit residential community (postcode 5173). It is home to about 764 residents, with a settled, mature resident base and a median age of 49. Households earn a median income of $57K per year, with an average household size of 2.1 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 +1.6% year-on-year in the official ABS Labour Force trend series, which provides the broader jobs backdrop for this suburb. SA also had 21 Commonwealth-backed major projects under construction, 7 underway, and 7 in planning as at 2025-09-01, which is useful as a broader delivery backdrop rather than a suburb-specific project count. The most common occupations are professionals, community & personal service, clerical & administrative. Employment in the area leans toward healthcare and education. The top ancestries reported are English, Australian, Scottish.
Aldinga has a median house price of $880,000, which has jumped by 21.4% year-on-year. Units have a median price of $595,000 (+13.3% YoY). The current median weekly rent is $400. This gives a gross rental yield of approximately 2.4%. The median monthly mortgage repayment is $1,517.
Aldinga is served by 2 schools, including 1 primary, 1 combined. The average ICSEA score is 956, which is around the national average of 1,000. Public transport access includes 18 bus stops. The crime rate in the Onkaparinga LGA is higher than average at 11,911 incidents per 100,000 population.
Looking at the investment signals, Gross rental yield sits at around 2.4% (low yield). Property prices are near the state median ($880K/$980K). The price-to-income ratio of 15.4x is considered stretched. House prices have moved +21.4% year-on-year. Population growth of +0.9% year-on-year points to stable demand fundamentals. Building approvals have changed +0% year-on-year, indicating steady development activity.