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Detention Postcode
Tasmania
Income, rent and SEIFA figures are from the ABS 2021 Census and are reported in 2021 dollars, not adjusted for subsequent inflation.
How Detention Compares
Detention vs the TAS average and the national average (2021 Census, population-weighted).
| Metric | Detention | TAS avg | AU avg |
|---|---|---|---|
| Household income/wk | $131 -TAS | $1,443 | $1,836 |
| Mortgage/month | $1,986 +TAS | $1,401 | $1,958 |
| Median age | 24 | 46.0 | 45.0 |
| SEIFA decile | 2/10 ≈TAS | 3.0/10 | 6.0/10 |
| Unemployment | 0.0% -TAS | 6.0% | 5.0% |
Green pill = at least 10% above the TAS average; red = at least 10% below; grey = within 10%. For unemployment, colour polarity is inverted: lower is better.
Detention is a remote community in Tasmania, with postcode 7321. It lies roughly 272 km from Hobart, classified by the ABS as remote Australia. The area is administered by Circular Head.
According to the 2021 Census, Detention has a population of 35 with a median age of 24. The median weekly household income is $131, below the TAS average.
Housing in Detention includes a median monthly mortgage repayment of $1,986, 3 total dwellings. These housing costs sit above the TAS average. Owner-occupied dwellings (owned or mortgaged) make up 100.0% of housing.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Detention scores in decile 2 out of 10, which is well below the national average.
Detention is part of the West Coast statistical area in Tasmania.
Detention Details
| Postcode | 7321 |
| State | Tasmania (TAS) |
| Phone Area Code | 03 |
| Population (2021) | 35 |
| Median Age | 24 years |
| Median Household Income (Census 2021) | $131/week |
| Median Personal Income (Census 2021) | $29/week |
| Median Monthly Mortgage (Census 2021) | $1,986 |
| Average Household Size | 4.4 persons |
| Area | 1.3 km² |
| Population Density | 28/km² |
| Total Dwellings | 3 |
| Australian Citizens | 57.1% |
| Unemployment Rate | 0.0% |
| SEIFA IRSAD Decile | 2/10 (well below average) |
| Latitude | -40.8781649 |
| Longitude | 145.4517605 |
| Distance from Hobart | 272 km |
| Region (SA4) | West and North West |
| Area (SA3) | West Coast |
| Local Government | Circular Head |
| Federal Electorate | Braddon |
Age Profile
Show counts
| 0–14 years | 10 (28.6%) |
| 15–24 years | 7 (20.0%) |
| 25–44 years | 12 (34.3%) |
| 45–64 years | 0 (0.0%) |
| 65+ years | 0 (0.0%) |
Housing Tenure
SEIFA Socio-economic Index
Index of Relative Socio-economic Advantage and Disadvantage (IRSAD), decile 2 of 10. Higher deciles indicate more advantage.
Motor Vehicles per Dwelling
| No vehicle | 0 (0.0%) |
| 1 vehicle | 5 (100.0%) |
| 2 vehicles | 0 (0.0%) |
| 3+ vehicles | 0 (0.0%) |
Suburbs Near Detention
Same Postcode (7321)
More Detention 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.