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South Australia · Postcode 5049
Seaview Downs postcode and suburb data
South Australia · Phone area code 08 · 13 km from Adelaide
Suburb snapshot
Seaview Downs at a glance vs SA
Fast facts and benchmark bars show the suburb's key postcode, Census, SEIFA, school and LGA signals in context.
Quick facts
Benchmarks against SA
Income, rent and SEIFA figures are from the ABS 2021 Census and are reported in 2021 dollars, not adjusted for subsequent inflation.
Where Seaview Downs ranks: rents are among the top 10% in SA.
ABS Census 2021 · SEIFA 2021Detailed comparison table
Seaview Downs vs the SA average and the national average, using population-weighted 2021 Census data.
| Metric | Seaview Downs | SA avg | AU avg | Greater Adelaide |
|---|---|---|---|---|
| Household income/wk | $1,741 +SA | $1,545 | $1,836 | $1,620 |
| Rent/wk | $385 +SA | $308 | $390 | $329 |
| Mortgage/month | $1,742 +SA | $1,558 | $1,958 | $1,666 |
| Median age | 42 | 45.0 | 45.0 | 42.0 |
| SEIFA decile | 8/10 +SA | 5.0/10 | 6.0/10 | 7.0/10 |
| Unemployment | 5.6% ≈SA | 6.0% | 5.0% | 6.0% |
Green pill = at least 10% above the SA average; red = at least 10% below; grey = within 10%. For unemployment, colour polarity is inverted: lower is better.
Seaview Downs is a coastal suburb of Adelaide in South Australia, with postcode 5049. It sits about 13 km from the Adelaide CBD, within the Marion local government area. The suburb footprint covers roughly 2.3 square kilometres.
According to the 2021 Census, Seaview Downs has a population of 2,718 with a median age of 42. The median weekly household income is $1,741, above the SA average. The unemployment rate is 5.6%. The Indigenous population is 20 (0.7% of residents).
Housing in Seaview Downs includes a median weekly rent of $385, median monthly mortgage repayment of $1,742, with 1,022 total dwellings. These housing costs sit above the SA average. Owner-occupied dwellings (owned or mortgaged) make up 88.2% of housing.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Seaview Downs scores in decile 8 out of 10, which is above the national average.
Seaview Downs is served by Seaview Downs Primary School.
Seaview Downs is part of the Marion statistical area in South Australia.
Seaview Downs details
Location, Census, housing, SEIFA and geography fields used across this profile.
| Postcode | 5049 |
| State | South Australia (SA) |
| Phone Area Code | 08 |
| Population (2021) | 2,718 |
| Median Age | 42 years |
| Median Household Income (Census 2021) | $1,741/week |
| Median Personal Income (Census 2021) | $796/week |
| Median Weekly Rent (Census 2021) | $385 |
| Median Monthly Mortgage (Census 2021) | $1,742 |
| Average Household Size | 2.6 persons |
| Area | 2.3 km² |
| Population Density | 1191/km² |
| Total Dwellings | 1,022 |
| Australian Citizens | 92.3% |
| Indigenous Population | 20 (0.7%) |
| Unemployment Rate | 5.6% |
| SEIFA IRSAD Decile | 8/10 (above average) |
| Latitude | -35.034 |
| Longitude | 138.536 |
| Distance from Adelaide | 13 km |
| Region (SA4) | Adelaide - South |
| Area (SA3) | Marion |
| Local Government | Marion |
| Federal Electorate | Boothby |
| State Electorate | Black |
| Time Zone | ACST (UTC+9:30), Australia/Adelaide (standard time) |
Age Profile
Show counts
| 0–14 years | 510 (18.8%) |
| 15–24 years | 308 (11.3%) |
| 25–44 years | 613 (22.6%) |
| 45–64 years | 702 (25.8%) |
| 65+ years | 594 (21.9%) |
Housing Tenure
SEIFA socio-economic index
Health Conditions (2021 Census)
| Arthritis | 238 (8.8%) |
| Asthma | 238 (8.8%) |
| Diabetes | 141 (5.2%) |
| Heart Disease | 127 (4.7%) |
| Cancer | 81 (3.0%) |
| Lung Condition | 43 (1.6%) |
| Dementia | 13 (0.5%) |
Long-term health conditions self-reported in the 2021 Census. Persons may report more than one condition.
Motor Vehicles per Dwelling
| No vehicle | 38 (3.7%) |
| 1 vehicle | 283 (27.7%) |
| 2 vehicles | 451 (44.2%) |
| 3+ vehicles | 249 (24.4%) |
Schools in Seaview Downs
ACARA 2025 school profiles for schools located in Seaview Downs. ICSEA is shown where ACARA publishes it.
Suburbs Near Seaview Downs
Same Postcode (5049)
More Seaview Downs Data
Page last reviewed . Data sources: Australian Bureau of Statistics 2021 Census (CC BY 4.0), SEIFA 2021 IRSAD, ACARA school profiles 2025. How this data is sourced.