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Illawarra Postcode
Victoria
Income, rent and SEIFA figures are from the ABS 2021 Census and are reported in 2021 dollars, not adjusted for subsequent inflation.
How Illawarra Compares
Illawarra vs the VIC average and the national average (2021 Census, population-weighted).
| Metric | Illawarra | VIC avg | AU avg |
|---|---|---|---|
| Household income/wk | $1,791 ≈VIC | $1,817 | $1,836 |
| Rent/wk | $300 -VIC | $375 | $390 |
| Mortgage/month | $1,083 -VIC | $1,933 | $1,958 |
| Median age | 42 | 46.0 | 45.0 |
| SEIFA decile | 4/10 -VIC | 6.0/10 | 6.0/10 |
| Unemployment | 0.0% -VIC | 5.0% | 5.0% |
Green pill = at least 10% above the VIC average; red = at least 10% below; grey = within 10%. For unemployment, colour polarity is inverted: lower is better.
Illawarra is a locality 218 km from Melbourne in Victoria, classified as outer regional by the ABS. The postcode is 3381. It falls within the North West region. The local government area is Northern Grampians.
According to the 2021 Census, Illawarra has a population of 80 with a median age of 42. The median weekly household income is $1,791, close to the VIC average.
Housing in Illawarra includes a median weekly rent of $300, median monthly mortgage repayment of $1,083, with 28 total dwellings. Housing costs in the area sit below the VIC average. Owner-occupied dwellings (owned or mortgaged) make up 100.0% of housing.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Illawarra scores in decile 4 out of 10, which is below the national average.
Illawarra is part of the Grampians statistical area in Victoria.
Illawarra Details
| Postcode | 3381 |
| State | Victoria (VIC) |
| Phone Area Code | 03 |
| Population (2021) | 80 |
| Median Age | 42 years |
| Median Household Income (Census 2021) | $1,791/week |
| Median Personal Income (Census 2021) | $1,012/week |
| Median Weekly Rent (Census 2021) | $300 |
| Median Monthly Mortgage (Census 2021) | $1,083 |
| Average Household Size | 2.5 persons |
| Area | 27.3 km² |
| Population Density | 3/km² |
| Total Dwellings | 28 |
| Australian Citizens | 95.0% |
| Unemployment Rate | 0.0% |
| SEIFA IRSAD Decile | 4/10 (below average) |
| Latitude | -37.0507405 |
| Longitude | 142.6941054 |
| Distance from Melbourne | 218 km |
| Region (SA4) | North West |
| Area (SA3) | Grampians |
| Local Government | Northern Grampians |
| Federal Electorate | Wannon |
Age Profile
Show counts
| 0–14 years | 13 (16.2%) |
| 15–24 years | 7 (8.8%) |
| 25–44 years | 28 (35.0%) |
| 45–64 years | 22 (27.5%) |
| 65+ years | 17 (21.2%) |
Housing Tenure
SEIFA Socio-economic Index
Index of Relative Socio-economic Advantage and Disadvantage (IRSAD), decile 4 of 10. Higher deciles indicate more advantage.
Health Conditions (2021 Census)
| Asthma | 9 (11.2%) |
| Arthritis | 8 (10.0%) |
| Diabetes | 3 (3.8%) |
Long-term health conditions self-reported in the 2021 Census. Persons may report more than one condition.
Motor Vehicles per Dwelling
| No vehicle | 0 (0.0%) |
| 1 vehicle | 8 (23.5%) |
| 2 vehicles | 12 (35.3%) |
| 3+ vehicles | 14 (41.2%) |
Suburbs Near Illawarra
Same Postcode (3381)
More Illawarra 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.