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Tasmania · Postcode 7257
Cape Barren Island postcode and suburb data
Tasmania · Phone area code 03 · 286 km from Hobart
Suburb snapshot
Cape Barren Island at a glance vs TAS
Fast facts and benchmark bars show the suburb's key postcode, Census, SEIFA, school and LGA signals in context.
Quick facts
Benchmarks against TAS
Income, rent and SEIFA figures are from the ABS 2021 Census and are reported in 2021 dollars, not adjusted for subsequent inflation.
Where Cape Barren Island ranks: household income sits in the bottom 10% of TAS suburbs; SEIFA decile 1 places it in the bottom 20% of Australia for socio-economic advantage.
ABS Census 2021 · SEIFA 2021Detailed comparison table
Cape Barren Island vs the TAS average and the national average, using population-weighted 2021 Census data.
| Metric | Cape Barren Island | TAS avg | AU avg |
|---|---|---|---|
| Household income/wk | $725 -TAS | $1,443 | $1,836 |
| Rent/wk | $85 -TAS | $311 | $390 |
| Median age | 51 | 46.0 | 45.0 |
| SEIFA decile | 1/10 -TAS | 3.0/10 | 6.0/10 |
| Unemployment | 11.1% +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.
Cape Barren Island is a very remote community in Tasmania, with postcode 7257. It lies roughly 286 km from Hobart, classified by the ABS as very remote Australia. The area is administered by Flinders (Tas.).
According to the 2021 Census, Cape Barren Island has a population of 64 with a median age of 51. The median weekly household income is $725, below the TAS average. The unemployment rate is 11.1%, higher than the TAS average. The Indigenous population is 40 (62.5% of residents).
Housing in Cape Barren Island includes a median weekly rent of $85, 26 total dwellings. Housing costs in the area sit below the TAS average. Rental properties account for 40.0% of dwellings.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Cape Barren Island scores in decile 1 out of 10, which is well below the national average.
Cape Barren Island is served by Cape Barren Island School.
Cape Barren Island is part of the North East statistical area in Tasmania.
Cape Barren Island details
Location, Census, housing, SEIFA and geography fields used across this profile.
| Postcode | 7257 |
| State | Tasmania (TAS) |
| Phone Area Code | 03 |
| Population (2021) | 64 |
| Median Age | 51 years |
| Median Household Income (Census 2021) | $725/week |
| Median Personal Income (Census 2021) | $421/week |
| Median Weekly Rent (Census 2021) | $85 |
| Average Household Size | 2 persons |
| Area | 580.4 km² |
| Population Density | 0/km² |
| Total Dwellings | 26 |
| Australian Citizens | 87.5% |
| Indigenous Population | 40 (62.5%) |
| Unemployment Rate | 11.1% |
| SEIFA IRSAD Decile | 1/10 (well below average) |
| Latitude | -40.3982432 |
| Longitude | 148.2014488 |
| Distance from Hobart | 286 km |
| Region (SA4) | Launceston and North East |
| Area (SA3) | North East |
| Local Government | Flinders (Tas.) |
| Federal Electorate | Bass |
| State Electorate | Bass (McIntyre) |
| Time Zone | AEST (UTC+10), Australia/Hobart (standard time) |
Age Profile
Show counts
| 0–14 years | 13 (20.3%) |
| 15–24 years | 0 (0.0%) |
| 25–44 years | 14 (21.9%) |
| 45–64 years | 19 (29.7%) |
| 65+ years | 18 (28.1%) |
Housing Tenure
SEIFA socio-economic index
Health Conditions (2021 Census)
| Arthritis | 12 (18.8%) |
| Heart Disease | 9 (14.1%) |
| Asthma | 6 (9.4%) |
| Diabetes | 5 (7.8%) |
| Cancer | 4 (6.2%) |
| Lung Condition | 3 (4.7%) |
Long-term health conditions self-reported in the 2021 Census. Persons may report more than one condition.
Motor Vehicles per Dwelling
| No vehicle | 14 (73.7%) |
| 1 vehicle | 5 (26.3%) |
| 2 vehicles | 0 (0.0%) |
| 3+ vehicles | 0 (0.0%) |
Schools in Cape Barren Island
ACARA 2025 school profiles for schools located in Cape Barren Island. ICSEA is shown where ACARA publishes it.
Suburbs Near Cape Barren Island
More Cape Barren Island 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.