Seaview Downs SA

Postcode 5049 · Marion LGA

Seaview Downs is a smaller suburb in South Australia within the Marion local government area (postcode 5049). With a population of 2,718, the suburb has an established demographic with a median age of 42. Households earn a median income of $91K per year, with an average household size of 2.6 people. The most common occupations are professionals, technicians & trades, clerical & administrative. The top ancestries reported are English, Australian, Irish.

The median house price in Seaview Downs is $1.1 million, having surged 14.8% over the past year. The current median weekly rent is $570. This gives a gross rental yield of approximately 2.6%. The median monthly mortgage repayment is $1,742.

Seaview Downs is served by 1 school, including 1 primary. The average ICSEA score is 1051, which is above the national average of 1,000. Public transport access includes 8 bus stops. The crime rate in the Marion LGA is below average at 2,686 incidents per 100,000 population.

From an investment perspective, Seaview Downs offers a gross rental yield of 2.6%, rated as low yield. Property prices are near the state median ($1.1M/$950K). The price-to-income ratio of 12.5x is considered stretched. House prices have moved +14.8% year-on-year.

INVESTMENT SIGNALS
Rental Yield2.6% Low Yield
Price vs State$1.1M/$950K Near Median
Affordability12.5x Stretched
Price Momentum+14.8% Rising
SEIFA INDEX (ABS)
Advantage8/10
Education8/10
Economic6/10
Disadvantage8/10
MEDIAN HOUSE
$1.1M
14.8% YoY
MEDIAN RENT /WK
$385
POPULATION
2,718
DEMOGRAPHICS
Median Age42
Household Size2.6
HH Income /wk$1,741
Personal Income /wk$796
Mortgage /mth$1,742
CRIME (Marion LGA)
Crime Rate (per 100k)2,686
Total Incidents73
TRANSPORT
Bus Stops8
SCHOOLS (1)
Avg ICSEA1051
Total Students324
Government1
Seaview Downs Primary SchoolPrimary · Government · ICSEA 1051
Data: 2025-Q4