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St Marys 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 St Marys Compares
St Marys vs the TAS average and the national average (2021 Census, population-weighted).
| Metric | St Marys | TAS avg | AU avg |
|---|---|---|---|
| Household income/wk | $759 -TAS | $1,443 | $1,836 |
| Rent/wk | $205 -TAS | $311 | $390 |
| Mortgage/month | $867 -TAS | $1,401 | $1,958 |
| Median age | 56 | 46.0 | 45.0 |
| SEIFA decile | 1/10 -TAS | 3.0/10 | 6.0/10 |
| Unemployment | 9.3% +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.
St Marys is a remote community in Tasmania, with postcode 7215. It lies roughly 161 km from Hobart, classified by the ABS as remote Australia. The area is administered by Break O'Day.
According to the 2021 Census, St Marys has a population of 738 with a median age of 56. The median weekly household income is $759, below the TAS average. The unemployment rate is 9.3%, higher than the TAS average. The Indigenous population is 26 (3.5% of residents).
Housing in St Marys includes a median weekly rent of $205, median monthly mortgage repayment of $867, with 341 total dwellings. Housing costs in the area sit below the TAS average. Owner-occupied dwellings (owned or mortgaged) make up 84.1% of housing.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, St Marys scores in decile 1 out of 10, which is well below the national average.
St Marys is served by St Marys District School.
St Marys is part of the South East Coast statistical area in Tasmania.
St Marys Details
| Postcode | 7215 |
| State | Tasmania (TAS) |
| Phone Area Code | 03 |
| Population (2021) | 738 |
| Median Age | 56 years |
| Median Household Income (Census 2021) | $759/week |
| Median Personal Income (Census 2021) | $445/week |
| Median Weekly Rent (Census 2021) | $205 |
| Median Monthly Mortgage (Census 2021) | $867 |
| Average Household Size | 2 persons |
| Area | 192.0 km² |
| Population Density | 4/km² |
| Total Dwellings | 341 |
| Australian Citizens | 90.4% |
| Indigenous Population | 26 (3.5%) |
| Unemployment Rate | 9.3% |
| SEIFA IRSAD Decile | 1/10 (well below average) |
| Latitude | -41.5806321 |
| Longitude | 148.1920797 |
| Distance from Hobart | 161 km |
| Region (SA4) | South East |
| Area (SA3) | South East Coast |
| Local Government | Break O'Day |
| Federal Electorate | Lyons |
Age Profile
Show counts
| 0–14 years | 86 (11.7%) |
| 15–24 years | 54 (7.3%) |
| 25–44 years | 95 (12.9%) |
| 45–64 years | 286 (38.8%) |
| 65+ years | 206 (27.9%) |
Housing Tenure
SEIFA Socio-economic Index
Index of Relative Socio-economic Advantage and Disadvantage (IRSAD), decile 1 of 10. Higher deciles indicate more advantage.
Health Conditions (2021 Census)
| Arthritis | 130 (17.6%) |
| Asthma | 74 (10.0%) |
| Diabetes | 48 (6.5%) |
| Heart Disease | 47 (6.4%) |
| Lung Condition | 47 (6.4%) |
| Cancer | 47 (6.4%) |
| Dementia | 4 (0.5%) |
Long-term health conditions self-reported in the 2021 Census. Persons may report more than one condition.
Motor Vehicles per Dwelling
| No vehicle | 17 (5.0%) |
| 1 vehicle | 123 (36.0%) |
| 2 vehicles | 118 (34.5%) |
| 3+ vehicles | 84 (24.6%) |
Schools in St Marys
Suburbs Near St Marys
Same Postcode (7215)
More St Marys 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.