Ironbark Postcode

Queensland

Inner Regional Above QLD income
4306
Postcode for Ironbark, QLD
Phone area code: 07 · 36 km from Brisbane · Pop. 1,173
1,173
Population
34
Median Age
$2,075
Household Income/wk
$325
Median Rent/wk
5/10
SEIFA Advantage
15.1
Area (km²)

Income, rent and SEIFA figures are from the ABS 2021 Census and are reported in 2021 dollars, not adjusted for subsequent inflation.

Where Ironbark ranks: household income is in the top 25% of QLD suburbs.

How Ironbark Compares

Ironbark vs the QLD average and the national average (2021 Census, population-weighted).

MetricIronbarkQLD avgAU avgGreater Brisbane
Household income/wk $2,075 +QLD $1,770 $1,836 $1,945
Rent/wk $325 -QLD $380 $390 $402
Mortgage/month $1,659 ≈QLD $1,774 $1,958 $1,919
Median age 34 44.0 45.0 38.0
SEIFA decile 5/10 ≈QLD 4.0/10 6.0/10 7.0/10
Unemployment 4.7% -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.

Ironbark is a locality 36 km from Brisbane in Queensland, classified as inner regional by the ABS. The postcode is 4306. It falls within the Ipswich region. The local government area is Ipswich.

According to the 2021 Census, Ironbark has a population of 1,173 with a median age of 34. The median weekly household income is $2,075, above the QLD average. The unemployment rate is 4.7%, lower than the QLD average. The Indigenous population is 221 (18.8% of residents).

Housing in Ironbark includes a median weekly rent of $325, median monthly mortgage repayment of $1,659, with 118 total dwellings. Housing costs in the area sit below the QLD average. Owner-occupied dwellings (owned or mortgaged) make up 89.9% of housing.

On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Ironbark scores in decile 5 out of 10, which is around the national average.

Ironbark is part of the Ipswich Inner statistical area in Queensland.

Ironbark Details

Postcode4306
StateQueensland (QLD)
Phone Area Code07
Population (2021)1,173
Median Age34 years
Median Household Income (Census 2021)$2,075/week
Median Personal Income (Census 2021)$746/week
Median Weekly Rent (Census 2021)$325
Median Monthly Mortgage (Census 2021)$1,659
Average Household Size2.9 persons
Area15.1 km²
Population Density78/km²
Total Dwellings118
Australian Citizens27.1%
Indigenous Population221 (18.8%)
Unemployment Rate4.7%
SEIFA IRSAD Decile5/10 (average)
Latitude-27.555278
Longitude152.674722
Distance from Brisbane36 km
Region (SA4)Ipswich
Area (SA3)Ipswich Inner
Local GovernmentIpswich
Federal ElectorateBlair

Age Profile

0–14 (4.3%) 15–24 (14.2%) 25–44 (54.6%) 45–64 (19.9%) 65+ (5.9%)
Show counts
0–14 years51 (4.3%)
15–24 years166 (14.2%)
25–44 years641 (54.6%)
45–64 years234 (19.9%)
65+ years69 (5.9%)

Housing Tenure

Owned outright (38.7%) Mortgaged (51.3%) Rented (10.1%)

SEIFA Socio-economic Index

Index of Relative Socio-economic Advantage and Disadvantage (IRSAD), decile 5 of 10. Higher deciles indicate more advantage.

Health Conditions (2021 Census)

Asthma37 (3.2%)
Arthritis34 (2.9%)
Diabetes22 (1.9%)
Lung Condition13 (1.1%)
Heart Disease12 (1.0%)
Cancer11 (0.9%)

Long-term health conditions self-reported in the 2021 Census. Persons may report more than one condition.

Motor Vehicles per Dwelling

No vehicle0 (0.0%)
1 vehicle19 (16.1%)
2 vehicles40 (33.9%)
3+ vehicles59 (50.0%)

Suburbs Near Ironbark

Same Postcode (4306)

More Ironbark 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.