Blackswamp Postcode
Queensland
Income, rent and SEIFA figures are from the ABS 2021 Census and are reported in 2021 dollars, not adjusted for subsequent inflation.
How Blackswamp Compares
Blackswamp vs the QLD average and the national average (2021 Census, population-weighted).
| Metric | Blackswamp | QLD avg | AU avg |
|---|---|---|---|
| Household income/wk | $1,875 ≈QLD | $1,770 | $1,836 |
| Rent/wk | $150 -QLD | $380 | $390 |
| Mortgage/month | $1,538 -QLD | $1,774 | $1,958 |
| Median age | 34 | 44.0 | 45.0 |
| SEIFA decile | 7/10 +QLD | 4.0/10 | 6.0/10 |
| Unemployment | 0.0% -QLD | 6.0% | 5.0% |
Green pill = at least 10% above the QLD average; red = at least 10% below; grey = within 10%. For unemployment, colour polarity is inverted: lower is better.
Blackswamp is a locality 254 km from Brisbane in Queensland, classified as outer regional by the ABS. The postcode is 4413. It falls within the Darling Downs - Maranoa region. The local government area is Western Downs.
According to the 2021 Census, Blackswamp has a population of 54 with a median age of 34. The median weekly household income is $1,875, close to the QLD average.
Housing in Blackswamp includes a median weekly rent of $150, median monthly mortgage repayment of $1,538, with 19 total dwellings. Housing costs in the area sit below the QLD average. Owner-occupied dwellings (owned or mortgaged) make up 72.7% of housing.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Blackswamp scores in decile 7 out of 10, which is above the national average.
Blackswamp is part of the Darling Downs (West) - Maranoa statistical area in Queensland.
Blackswamp Details
| Postcode | 4413 |
| State | Queensland (QLD) |
| Phone Area Code | 07 |
| Population (2021) | 54 |
| Median Age | 34 years |
| Median Household Income (Census 2021) | $1,875/week |
| Median Personal Income (Census 2021) | $933/week |
| Median Weekly Rent (Census 2021) | $150 |
| Median Monthly Mortgage (Census 2021) | $1,538 |
| Average Household Size | 2.7 persons |
| Area | 179.3 km² |
| Population Density | 0/km² |
| Total Dwellings | 19 |
| Australian Citizens | 88.9% |
| Unemployment Rate | 0.0% |
| SEIFA IRSAD Decile | 7/10 (above average) |
| Latitude | -26.7019937 |
| Longitude | 150.6121804 |
| Distance from Brisbane | 254 km |
| Region (SA4) | Darling Downs - Maranoa |
| Area (SA3) | Darling Downs (West) - Maranoa |
| Local Government | Western Downs |
| Federal Electorate | Maranoa |
Age Profile
Show counts
| 0–14 years | 20 (37.0%) |
| 15–24 years | 3 (5.6%) |
| 25–44 years | 12 (22.2%) |
| 45–64 years | 14 (25.9%) |
| 65+ years | 7 (13.0%) |
Housing Tenure
SEIFA Socio-economic Index
Index of Relative Socio-economic Advantage and Disadvantage (IRSAD), decile 7 of 10. Higher deciles indicate more advantage.
Health Conditions (2021 Census)
| Asthma | 8 (14.8%) |
| Arthritis | 6 (11.1%) |
| Diabetes | 6 (11.1%) |
| Cancer | 6 (11.1%) |
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 | 4 (19.0%) |
| 2 vehicles | 7 (33.3%) |
| 3+ vehicles | 10 (47.6%) |
Suburbs Near Blackswamp
Same Postcode (4413)
More Blackswamp 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.