Underbank Postcode
New South Wales
Income, rent and SEIFA figures are from the ABS 2021 Census and are reported in 2021 dollars, not adjusted for subsequent inflation.
How Underbank Compares
Underbank vs the NSW average and the national average (2021 Census, population-weighted).
| Metric | Underbank | NSW avg | AU avg |
|---|---|---|---|
| Household income/wk | $1,999 ≈NSW | $1,931 | $1,836 |
| Rent/wk | $268 -NSW | $445 | $390 |
| Median age | 51 | 45.0 | 45.0 |
| SEIFA decile | 8/10 +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.
Underbank is a locality 180 km from Sydney in New South Wales, classified as outer regional by the ABS. The postcode is 2420. It falls within the Hunter Valley exc Newcastle region. The local government area is Dungog.
According to the 2021 Census, Underbank has a population of 16 with a median age of 51. The median weekly household income is $1,999, close to the NSW average.
Housing in Underbank includes a median weekly rent of $268, 7 total dwellings. Housing costs in the area sit below the NSW average. Rental properties account for 100.0% of dwellings.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Underbank scores in decile 8 out of 10, which is above the national average.
Underbank is part of the Lower Hunter statistical area in New South Wales.
Underbank Details
| Postcode | 2420 |
| State | New South Wales (NSW) |
| Phone Area Code | 02 |
| Population (2021) | 16 |
| Median Age | 51 years |
| Median Household Income (Census 2021) | $1,999/week |
| Median Personal Income (Census 2021) | $725/week |
| Median Weekly Rent (Census 2021) | $268 |
| Average Household Size | 2.1 persons |
| Area | 50.7 km² |
| Population Density | 0/km² |
| Total Dwellings | 7 |
| Australian Citizens | 100.0% |
| Unemployment Rate | 0.0% |
| SEIFA IRSAD Decile | 8/10 (above average) |
| Latitude | -32.2817124 |
| Longitude | 151.6052325 |
| Distance from Sydney | 180 km |
| Region (SA4) | Hunter Valley exc Newcastle |
| Area (SA3) | Lower Hunter |
| Local Government | Dungog |
| Federal Electorate | Lyne |
Age Profile
Show counts
| 0–14 years | 0 (0.0%) |
| 15–24 years | 0 (0.0%) |
| 25–44 years | 0 (0.0%) |
| 45–64 years | 3 (18.8%) |
| 65+ years | 9 (56.2%) |
Housing Tenure
SEIFA Socio-economic Index
Index of Relative Socio-economic Advantage and Disadvantage (IRSAD), decile 8 of 10. Higher deciles indicate more advantage.
Health Conditions (2021 Census)
| Arthritis | 5 (31.2%) |
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 (57.1%) |
| 3+ vehicles | 3 (42.9%) |
Suburbs Near Underbank
Same Postcode (2420)
More Underbank 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.