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Castra 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 Castra Compares
Castra vs the TAS average and the national average (2021 Census, population-weighted).
| Metric | Castra | TAS avg | AU avg |
|---|---|---|---|
| Household income/wk | $1,024 -TAS | $1,443 | $1,836 |
| Rent/wk | $100 -TAS | $311 | $390 |
| Mortgage/month | $1,558 +TAS | $1,401 | $1,958 |
| Median age | 49 | 46.0 | 45.0 |
| SEIFA decile | 3/10 ≈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.
Castra is a locality 203 km from Hobart in Tasmania, classified as outer regional by the ABS. The postcode is 7315. It falls within the West and North West region. The local government area is Central Coast (Tas.).
According to the 2021 Census, Castra has a population of 41 with a median age of 49. The median weekly household income is $1,024, below the TAS average.
Housing in Castra includes a median weekly rent of $100, median monthly mortgage repayment of $1,558, with 19 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, Castra scores in decile 3 out of 10, which is below the national average.
Castra is part of the Devonport statistical area in Tasmania.
Castra Details
| Postcode | 7315 |
| State | Tasmania (TAS) |
| Phone Area Code | 03 |
| Population (2021) | 41 |
| Median Age | 49 years |
| Median Household Income (Census 2021) | $1,024/week |
| Median Personal Income (Census 2021) | $525/week |
| Median Weekly Rent (Census 2021) | $100 |
| Median Monthly Mortgage (Census 2021) | $1,558 |
| Average Household Size | 2.4 persons |
| Area | 15.5 km² |
| Population Density | 3/km² |
| Total Dwellings | 19 |
| Australian Citizens | 92.7% |
| Unemployment Rate | 0.0% |
| SEIFA IRSAD Decile | 3/10 (below average) |
| Latitude | -41.2910471 |
| Longitude | 146.1187372 |
| Distance from Hobart | 203 km |
| Region (SA4) | West and North West |
| Area (SA3) | Devonport |
| Local Government | Central Coast (Tas.) |
| Federal Electorate | Braddon |
Age Profile
Show counts
| 0–14 years | 0 (0.0%) |
| 15–24 years | 12 (29.3%) |
| 25–44 years | 0 (0.0%) |
| 45–64 years | 23 (56.1%) |
| 65+ years | 8 (19.5%) |
Housing Tenure
SEIFA Socio-economic Index
Index of Relative Socio-economic Advantage and Disadvantage (IRSAD), decile 3 of 10. Higher deciles indicate more advantage.
Health Conditions (2021 Census)
| Asthma | 6 (14.6%) |
| 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 | 5 (33.3%) |
| 2 vehicles | 3 (20.0%) |
| 3+ vehicles | 7 (46.7%) |
Suburbs Near Castra
Same Postcode (7315)
More Castra 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.