Underwood 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 Underwood Compares
Underwood vs the QLD average and the national average (2021 Census, population-weighted).
| Metric | Underwood | QLD avg | AU avg | Greater Brisbane |
|---|---|---|---|---|
| Household income/wk | $1,992 +QLD | $1,770 | $1,836 | $1,945 |
| Rent/wk | $400 ≈QLD | $380 | $390 | $402 |
| Mortgage/month | $1,950 ≈QLD | $1,774 | $1,958 | $1,919 |
| Median age | 34 | 44.0 | 45.0 | 38.0 |
| SEIFA decile | 8/10 +QLD | 4.0/10 | 6.0/10 | 7.0/10 |
| Unemployment | 6.5% ≈QLD | 6.0% | 5.0% | 6.0% |
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.
Postcode 4119 covers Underwood, an inland suburb of Brisbane about 18 km from the city centre. It forms part of the Logan - Beaudesert region of Queensland. Local government services are provided by Logan.
According to the 2021 Census, Underwood has a population of 6,809 with a median age of 34. The median weekly household income is $1,992, above the QLD average. The unemployment rate is 6.5%. The Indigenous population is 100 (1.5% of residents).
Housing in Underwood includes a median weekly rent of $400, median monthly mortgage repayment of $1,950, with 2,145 total dwellings. Owner-occupied dwellings (owned or mortgaged) make up 72.2% of housing.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Underwood scores in decile 8 out of 10, which is above the national average.
Underwood is part of the Springwood - Kingston statistical area in Queensland.
Underwood Details
| Postcode | 4119 |
| State | Queensland (QLD) |
| Phone Area Code | 07 |
| Population (2021) | 6,809 |
| Median Age | 34 years |
| Median Household Income (Census 2021) | $1,992/week |
| Median Personal Income (Census 2021) | $803/week |
| Median Weekly Rent (Census 2021) | $400 |
| Median Monthly Mortgage (Census 2021) | $1,950 |
| Average Household Size | 3.1 persons |
| Area | 4.2 km² |
| Population Density | 1626/km² |
| Total Dwellings | 2,145 |
| Australian Citizens | 79.9% |
| Indigenous Population | 100 (1.5%) |
| Unemployment Rate | 6.5% |
| SEIFA IRSAD Decile | 8/10 (above average) |
| Latitude | -27.6092593 |
| Longitude | 153.1119105 |
| Distance from Brisbane | 18 km |
| Region (SA4) | Logan - Beaudesert |
| Area (SA3) | Springwood - Kingston |
| Local Government | Logan |
| Federal Electorate | Rankin |
Age Profile
Show counts
| 0–14 years | 1,554 (22.8%) |
| 15–24 years | 881 (12.9%) |
| 25–44 years | 2,185 (32.1%) |
| 45–64 years | 1,495 (22.0%) |
| 65+ years | 687 (10.1%) |
Housing Tenure
SEIFA Socio-economic Index
Index of Relative Socio-economic Advantage and Disadvantage (IRSAD), decile 8 of 10. Higher deciles indicate more advantage.
Health Conditions (2021 Census)
| Asthma | 462 (6.8%) |
| Arthritis | 358 (5.3%) |
| Diabetes | 295 (4.3%) |
| Heart Disease | 183 (2.7%) |
| Cancer | 112 (1.6%) |
| Lung Condition | 53 (0.8%) |
| Dementia | 27 (0.4%) |
Long-term health conditions self-reported in the 2021 Census. Persons may report more than one condition.
Motor Vehicles per Dwelling
| No vehicle | 45 (2.1%) |
| 1 vehicle | 599 (28.2%) |
| 2 vehicles | 982 (46.2%) |
| 3+ vehicles | 500 (23.5%) |
Suburbs Near Underwood
More Underwood 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.