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Tasmania · Postcode 7140
Lake St Clair postcode and suburb data
Tasmania · Phone area code 03 · 132 km from Hobart
Suburb snapshot
Lake St Clair 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 Lake St Clair ranks: household income is in the top 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
Lake St Clair vs the TAS average and the national average, using population-weighted 2021 Census data.
| Metric | Lake St Clair | TAS avg | AU avg |
|---|---|---|---|
| Household income/wk | $1,999 +TAS | $1,443 | $1,836 |
| Rent/wk | $43 -TAS | $311 | $390 |
| Median age | 47 | 46.0 | 45.0 |
| SEIFA decile | 1/10 -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.
Lake St Clair is a remote community in Tasmania, with postcode 7140. It lies roughly 132 km from Hobart, classified by the ABS as remote Australia. The area is administered by Central Highlands (Tas.).
According to the 2021 Census, Lake St Clair has a population of 9 with a median age of 47. The median weekly household income is $1,999, above the TAS average.
Housing in Lake St Clair includes a median weekly rent of $43, 3 total dwellings. Housing costs in the area sit below the TAS average. Rental properties account for 100.0% of dwellings.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Lake St Clair scores in decile 1 out of 10, which is well below the national average.
Lake St Clair is part of the West Coast statistical area in Tasmania.
Lake St Clair details
Location, Census, housing, SEIFA and geography fields used across this profile.
| Postcode | 7140 |
| State | Tasmania (TAS) |
| Phone Area Code | 03 |
| Population (2021) | 9 |
| Median Age | 47 years |
| Median Household Income (Census 2021) | $1,999/week |
| Median Personal Income (Census 2021) | $949/week |
| Median Weekly Rent (Census 2021) | $43 |
| Average Household Size | 1.5 persons |
| Area | 840.5 km² |
| Population Density | 0/km² |
| Total Dwellings | 3 |
| Australian Citizens | 33.3% |
| Unemployment Rate | 0.0% |
| SEIFA IRSAD Decile | 1/10 (well below average) |
| Latitude | -42.0581392 |
| Longitude | 146.1656386 |
| Distance from Hobart | 132 km |
| Region (SA4) | West and North West |
| Area (SA3) | West Coast |
| Local Government | Central Highlands (Tas.) |
| Federal Electorate | Lyons |
| State Electorate | Lyons (Prosser) |
| Time Zone | AEST (UTC+10), Australia/Hobart (standard time) |
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 (33.3%) |
| 65+ years | 0 (0.0%) |
Housing Tenure
SEIFA socio-economic index
Suburbs Near Lake St Clair
Same Postcode (7140)
More Lake St Clair 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.