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Lachlan 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 Lachlan Compares
Lachlan vs the TAS average and the national average (2021 Census, population-weighted).
| Metric | Lachlan | TAS avg | AU avg | Greater Hobart |
|---|---|---|---|---|
| Household income/wk | $1,759 +TAS | $1,443 | $1,836 | $1,571 |
| Rent/wk | $365 +TAS | $311 | $390 | $355 |
| Mortgage/month | $1,300 ≈TAS | $1,401 | $1,958 | $1,538 |
| Median age | 44 | 46.0 | 45.0 | 44.0 |
| SEIFA decile | 3/10 ≈TAS | 3.0/10 | 6.0/10 | 4.0/10 |
| Unemployment | 6.2% ≈TAS | 6.0% | 5.0% | 6.0% |
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.
Lachlan is a remote community in Tasmania, with postcode 7140. It lies roughly 24 km from Hobart, classified by the ABS as remote Australia. The area is administered by Derwent Valley.
According to the 2021 Census, Lachlan has a population of 953 with a median age of 44. The median weekly household income is $1,759, above the TAS average. The unemployment rate is 6.2%. The Indigenous population is 55 (5.8% of residents).
Housing in Lachlan includes a median weekly rent of $365, median monthly mortgage repayment of $1,300, with 325 total dwellings. These housing costs sit above the TAS average. Owner-occupied dwellings (owned or mortgaged) make up 96.3% of housing.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Lachlan scores in decile 3 out of 10, which is below the national average.
Lachlan is part of the West Coast statistical area in Tasmania.
Lachlan Details
| Postcode | 7140 |
| State | Tasmania (TAS) |
| Phone Area Code | 03 |
| Population (2021) | 953 |
| Median Age | 44 years |
| Median Household Income (Census 2021) | $1,759/week |
| Median Personal Income (Census 2021) | $701/week |
| Median Weekly Rent (Census 2021) | $365 |
| Median Monthly Mortgage (Census 2021) | $1,300 |
| Average Household Size | 2.7 persons |
| Area | 55.2 km² |
| Population Density | 17/km² |
| Total Dwellings | 325 |
| Australian Citizens | 90.1% |
| Indigenous Population | 55 (5.8%) |
| Unemployment Rate | 6.2% |
| SEIFA IRSAD Decile | 3/10 (below average) |
| Latitude | -42.834153 |
| Longitude | 147.0461867 |
| Distance from Hobart | 24 km |
| Region (SA4) | West and North West |
| Area (SA3) | West Coast |
| Local Government | Derwent Valley |
| Federal Electorate | Lyons |
Age Profile
Show counts
| 0–14 years | 169 (17.7%) |
| 15–24 years | 104 (10.9%) |
| 25–44 years | 205 (21.5%) |
| 45–64 years | 322 (33.8%) |
| 65+ years | 149 (15.6%) |
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)
| Arthritis | 101 (10.6%) |
| Asthma | 92 (9.7%) |
| Diabetes | 50 (5.2%) |
| Heart Disease | 34 (3.6%) |
| Cancer | 32 (3.4%) |
| Lung Condition | 15 (1.6%) |
| Dementia | 7 (0.7%) |
Long-term health conditions self-reported in the 2021 Census. Persons may report more than one condition.
Motor Vehicles per Dwelling
| No vehicle | 7 (2.1%) |
| 1 vehicle | 58 (17.3%) |
| 2 vehicles | 125 (37.3%) |
| 3+ vehicles | 145 (43.3%) |
Suburbs Near Lachlan
Same Postcode (7140)
More Lachlan 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.