Willaston Postcode

South Australia

Inner Regional Bottom 20% SEIFA
5118
Postcode for Willaston, SA
Phone area code: 08 · 40 km from Adelaide · Pop. 3,458
3,458
Population
42
Median Age
$1,254
Household Income/wk
$300
Median Rent/wk
2/10
SEIFA Advantage
3.0
Area (km²)

Income, rent and SEIFA figures are from the ABS 2021 Census and are reported in 2021 dollars, not adjusted for subsequent inflation.

Where Willaston ranks: SEIFA decile 2 places it in the bottom 20% of Australia for socio-economic advantage.

How Willaston Compares

Willaston vs the SA average and the national average (2021 Census, population-weighted).

MetricWillastonSA avgAU avgGreater Adelaide
Household income/wk $1,254 -SA $1,545 $1,836 $1,620
Rent/wk $300 ≈SA $308 $390 $329
Mortgage/month $1,213 -SA $1,558 $1,958 $1,666
Median age 42 45.0 45.0 42.0
SEIFA decile 2/10 -SA 5.0/10 6.0/10 7.0/10
Unemployment 6.4% ≈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.

Willaston is a locality 40 km from Adelaide in South Australia, classified as inner regional by the ABS. The postcode is 5118. It falls within the Adelaide - North region. The local government area is Gawler.

According to the 2021 Census, Willaston has a population of 3,458 with a median age of 42. The median weekly household income is $1,254, below the SA average. The unemployment rate is 6.4%. The Indigenous population is 79 (2.3% of residents).

Housing in Willaston includes a median weekly rent of $300, median monthly mortgage repayment of $1,213, with 1,472 total dwellings. Housing costs in the area sit below the SA average. Owner-occupied dwellings (owned or mortgaged) make up 75.2% of housing.

On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Willaston scores in decile 2 out of 10, which is well below the national average.

Willaston is part of the Playford statistical area in South Australia.

Willaston Details

Postcode5118
StateSouth Australia (SA)
Phone Area Code08
Population (2021)3,458
Median Age42 years
Median Household Income (Census 2021)$1,254/week
Median Personal Income (Census 2021)$713/week
Median Weekly Rent (Census 2021)$300
Median Monthly Mortgage (Census 2021)$1,213
Average Household Size2.3 persons
Area3.0 km²
Population Density1151/km²
Total Dwellings1,472
Australian Citizens92.2%
Indigenous Population79 (2.3%)
Unemployment Rate6.4%
SEIFA IRSAD Decile2/10 (well below average)
Latitude-34.591
Longitude138.744
Distance from Adelaide40 km
Region (SA4)Adelaide - North
Area (SA3)Playford
Local GovernmentGawler
Federal ElectorateSpence

Age Profile

0–14 (18.5%) 15–24 (10.6%) 25–44 (23.3%) 45–64 (25.7%) 65+ (22.0%)
Show counts
0–14 years639 (18.5%)
15–24 years368 (10.6%)
25–44 years807 (23.3%)
45–64 years890 (25.7%)
65+ years762 (22.0%)

Housing Tenure

Owned outright (34.0%) Mortgaged (41.2%) Rented (24.8%)

SEIFA Socio-economic Index

Index of Relative Socio-economic Advantage and Disadvantage (IRSAD), decile 2 of 10. Higher deciles indicate more advantage.

Health Conditions (2021 Census)

Arthritis437 (12.6%)
Asthma382 (11.0%)
Diabetes235 (6.8%)
Heart Disease187 (5.4%)
Cancer116 (3.4%)
Lung Condition89 (2.6%)
Dementia21 (0.6%)

Long-term health conditions self-reported in the 2021 Census. Persons may report more than one condition.

Motor Vehicles per Dwelling

No vehicle75 (5.1%)
1 vehicle577 (39.5%)
2 vehicles516 (35.3%)
3+ vehicles292 (20.0%)

Suburbs Near Willaston

Same Postcode (5118)

More Willaston 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.