Seaford Heights SA

Postcode 5169 · Onkaparinga LGA

Seaford Heights is a small community in South Australia within the Onkaparinga local government area (postcode 5169). With a population of 1,079, the suburb has a young professional demographic with a median age of 29. Households earn a median income of $113K per year, with an average household size of 2.6 people. The most common occupations are professionals, technicians & trades, community & personal service. The top ancestries reported are English, Australian, Scottish.

The median house price in Seaford Heights is $950,000, having surged 20.3% over the past year. The current median weekly rent is $650. This gives a gross rental yield of approximately 3.6%. The median monthly mortgage repayment is $1,733.

Public transport access includes 2 bus stops. The crime rate in the Onkaparinga LGA is moderate at 4,263 incidents per 100,000 population.

From an investment perspective, Seaford Heights offers a gross rental yield of 3.6%, rated as moderate yield. Property prices are near the state median ($950K/$950K). The price-to-income ratio of 8.4x is considered moderate. House prices have moved +20.3% year-on-year.

INVESTMENT SIGNALS
Rental Yield3.6% Moderate Yield
Price vs State$950K/$950K Near Median
Affordability8.4x Moderate
Price Momentum+20.3% Rising
SEIFA INDEX (ABS)
Advantage10/10
Education6/10
Economic8/10
Disadvantage8/10
MEDIAN HOUSE
$950K
20.3% YoY
MEDIAN RENT /WK
$380
POPULATION
1,079
DEMOGRAPHICS
Median Age29
Household Size2.6
HH Income /wk$2,170
Personal Income /wk$1081
Mortgage /mth$1,733
CRIME (Onkaparinga LGA)
Crime Rate (per 100k)4,263
Total Incidents46
TRANSPORT
Bus Stops2
Data: 2025-Q4