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South Australia · Postcode 5044
Somerton Park postcode and suburb data
South Australia · Phone area code 08 · 10 km from Adelaide
Suburb snapshot
Somerton Park 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 Somerton Park ranks: SEIFA decile 9 puts it in the top 20% of Australia for socio-economic advantage.
ABS Census 2021 · SEIFA 2021Detailed comparison table
Somerton Park vs the SA average and the national average, using population-weighted 2021 Census data.
| Metric | Somerton Park | SA avg | AU avg | Greater Adelaide |
|---|---|---|---|---|
| Household income/wk | $1,633 ≈SA | $1,545 | $1,836 | $1,620 |
| Rent/wk | $335 ≈SA | $308 | $390 | $329 |
| Mortgage/month | $2,058 +SA | $1,558 | $1,958 | $1,666 |
| Median age | 48 | 45.0 | 45.0 | 42.0 |
| SEIFA decile | 9/10 +SA | 5.0/10 | 6.0/10 | 7.0/10 |
| Unemployment | 3.0% -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.
Somerton Park is a coastal suburb of Adelaide in South Australia, with postcode 5044. It sits about 10 km from the Adelaide CBD, within the Holdfast Bay local government area. The suburb footprint covers roughly 2.2 square kilometres.
According to the 2021 Census, Somerton Park has a population of 5,811 with a median age of 48. The median weekly household income is $1,633, close to the SA average. The unemployment rate is 3.0%, lower than the SA average. The Indigenous population is 56 (1.0% of residents).
Housing in Somerton Park includes a median weekly rent of $335, median monthly mortgage repayment of $2,058, with 2,427 total dwellings. These housing costs sit above the SA average. Owner-occupied dwellings (owned or mortgaged) make up 74.5% of housing.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Somerton Park scores in decile 9 out of 10, which is well above the national average.
Somerton Park is served by Sacred Heart College.
Somerton Park is part of the Marion statistical area in South Australia.
Somerton Park details
Location, Census, housing, SEIFA and geography fields used across this profile.
| Postcode | 5044 |
| State | South Australia (SA) |
| Phone Area Code | 08 |
| Population (2021) | 5,811 |
| Median Age | 48 years |
| Median Household Income (Census 2021) | $1,633/week |
| Median Personal Income (Census 2021) | $908/week |
| Median Weekly Rent (Census 2021) | $335 |
| Median Monthly Mortgage (Census 2021) | $2,058 |
| Average Household Size | 2.2 persons |
| Area | 2.2 km² |
| Population Density | 2597/km² |
| Total Dwellings | 2,427 |
| Australian Citizens | 92.2% |
| Indigenous Population | 56 (1.0%) |
| Unemployment Rate | 3.0% |
| SEIFA IRSAD Decile | 9/10 (well above average) |
| Latitude | -34.99541 |
| Longitude | 138.521461 |
| Distance from Adelaide | 10 km |
| Region (SA4) | Adelaide - South |
| Area (SA3) | Marion |
| Local Government | Holdfast Bay |
| Federal Electorate | Boothby |
| State Electorate | Morphett |
| Time Zone | ACST (UTC+9:30), Australia/Adelaide (standard time) |
Age Profile
Show counts
| 0–14 years | 790 (13.6%) |
| 15–24 years | 738 (12.7%) |
| 25–44 years | 1,094 (18.8%) |
| 45–64 years | 1,597 (27.5%) |
| 65+ years | 1,579 (27.2%) |
Housing Tenure
SEIFA socio-economic index
Health Conditions (2021 Census)
| Arthritis | 627 (10.8%) |
| Asthma | 516 (8.9%) |
| Heart Disease | 327 (5.6%) |
| Diabetes | 275 (4.7%) |
| Cancer | 258 (4.4%) |
| Lung Condition | 107 (1.8%) |
| Dementia | 95 (1.6%) |
Long-term health conditions self-reported in the 2021 Census. Persons may report more than one condition.
Motor Vehicles per Dwelling
| No vehicle | 205 (8.6%) |
| 1 vehicle | 915 (38.3%) |
| 2 vehicles | 867 (36.3%) |
| 3+ vehicles | 399 (16.7%) |
Schools in Somerton Park
ACARA 2025 school profiles for schools located in Somerton Park. ICSEA is shown where ACARA publishes it.
Suburbs Near Somerton Park
Same Postcode (5044)
More Somerton Park 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.