New South Wales · Postcode 2540
Illaroo postcode and suburb data
New South Wales · Phone area code 02 · 127 km from Sydney
Suburb snapshot
Illaroo at a glance vs NSW
Fast facts and benchmark bars show the suburb's key postcode, Census, SEIFA, school and LGA signals in context.
Quick facts
Benchmarks against NSW
Income, rent and SEIFA figures are from the ABS 2021 Census and are reported in 2021 dollars, not adjusted for subsequent inflation.
Where Illaroo ranks: rents sit in the cheapest 10% in NSW; SEIFA decile 9 puts it in the top 20% of Australia for socio-economic advantage.
ABS Census 2021 · SEIFA 2021Detailed comparison table
Illaroo vs the NSW average and the national average, using population-weighted 2021 Census data.
| Metric | Illaroo | NSW avg | AU avg |
|---|---|---|---|
| Household income/wk | $1,624 -NSW | $1,931 | $1,836 |
| Mortgage/month | $2,125 ≈NSW | $2,247 | $1,958 |
| Median age | 50 | 45.0 | 45.0 |
| SEIFA decile | 9/10 +NSW | 6.0/10 | 6.0/10 |
| Unemployment | 0.0% -NSW | 5.0% | 5.0% |
Green pill = at least 10% above the NSW average; red = at least 10% below; grey = within 10%. For unemployment, colour polarity is inverted: lower is better.
Illaroo is a locality 127 km from Sydney in New South Wales, classified as inner regional by the ABS. The postcode is 2540. It falls within the Other Territories region. The local government area is Shoalhaven.
According to the 2021 Census, Illaroo has a population of 41 with a median age of 50. The median weekly household income is $1,624, below the NSW average.
Housing in Illaroo includes a median monthly mortgage repayment of $2,125, 14 total dwellings. Housing costs in the area sit below the NSW average. Owner-occupied dwellings (owned or mortgaged) make up 100.0% of housing.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Illaroo scores in decile 9 out of 10, which is well above the national average.
Illaroo is part of the Jervis Bay statistical area in New South Wales.
Illaroo details
Location, Census, housing, SEIFA and geography fields used across this profile.
| Postcode | 2540 |
| State | New South Wales (NSW) |
| Phone Area Code | 02 |
| Population (2021) | 41 |
| Median Age | 50 years |
| Median Household Income (Census 2021) | $1,624/week |
| Median Personal Income (Census 2021) | $624/week |
| Median Monthly Mortgage (Census 2021) | $2,125 |
| Average Household Size | 2.8 persons |
| Area | 32.9 km² |
| Population Density | 1/km² |
| Total Dwellings | 14 |
| Australian Citizens | 100.0% |
| Unemployment Rate | 0.0% |
| SEIFA IRSAD Decile | 9/10 (well above average) |
| Latitude | -34.8459481 |
| Longitude | 150.4862511 |
| Distance from Sydney | 127 km |
| Region (SA4) | Other Territories |
| Area (SA3) | Jervis Bay |
| Local Government | Shoalhaven |
| Federal Electorate | Gilmore |
| State Electorate | Unclassified (OT) |
| Time Zone | AEST (UTC+10), Australia/Sydney (standard time) |
Age Profile
Show counts
| 0–14 years | 7 (17.1%) |
| 15–24 years | 7 (17.1%) |
| 25–44 years | 0 (0.0%) |
| 45–64 years | 22 (53.7%) |
| 65+ years | 6 (14.6%) |
Housing Tenure
SEIFA socio-economic index
Health Conditions (2021 Census)
| Asthma | 5 (12.2%) |
| Heart Disease | 4 (9.8%) |
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 | 0 (0.0%) |
| 2 vehicles | 4 (28.6%) |
| 3+ vehicles | 10 (71.4%) |
Suburbs Near Illaroo
Same Postcode (2540)
More Illaroo 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.