Silkstone Postcode

Queensland

Metro Bottom 20% SEIFA
4304
Postcode for Silkstone, QLD
Phone area code: 07 · 29 km from Brisbane · Pop. 3,830
3,830
Population
38
Median Age
$1,319
Household Income/wk
$305
Median Rent/wk
2/10
SEIFA Advantage
2.0
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 Silkstone ranks: SEIFA decile 2 places it in the bottom 20% of Australia for socio-economic advantage.

How Silkstone Compares

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

MetricSilkstoneQLD avgAU avgGreater Brisbane
Household income/wk $1,319 -QLD $1,770 $1,836 $1,945
Rent/wk $305 -QLD $380 $390 $402
Mortgage/month $1,383 -QLD $1,774 $1,958 $1,919
Median age 38 44.0 45.0 38.0
SEIFA decile 2/10 -QLD 4.0/10 6.0/10 7.0/10
Unemployment 6.6% ≈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 4304 covers Silkstone, an inland suburb of Brisbane about 29 km from the city centre. It forms part of the Ipswich region of Queensland. Local government services are provided by Ipswich.

According to the 2021 Census, Silkstone has a population of 3,830 with a median age of 38. The median weekly household income is $1,319, below the QLD average. The unemployment rate is 6.6%. The Indigenous population is 220 (5.7% of residents).

Housing in Silkstone includes a median weekly rent of $305, median monthly mortgage repayment of $1,383, with 1,531 total dwellings. Housing costs in the area sit below the QLD average. Owner-occupied dwellings (owned or mortgaged) make up 62.3% of housing.

On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Silkstone scores in decile 2 out of 10, which is well below the national average.

Schools in Silkstone include Silkstone State School and Claremont Special School.

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

Silkstone Details

Postcode4304
StateQueensland (QLD)
Phone Area Code07
Population (2021)3,830
Median Age38 years
Median Household Income (Census 2021)$1,319/week
Median Personal Income (Census 2021)$705/week
Median Weekly Rent (Census 2021)$305
Median Monthly Mortgage (Census 2021)$1,383
Average Household Size2.4 persons
Area2.0 km²
Population Density1943/km²
Total Dwellings1,531
Australian Citizens89.2%
Indigenous Population220 (5.7%)
Unemployment Rate6.6%
SEIFA IRSAD Decile2/10 (well below average)
Latitude-27.622778
Longitude152.79
Distance from Brisbane29 km
Region (SA4)Ipswich
Area (SA3)Ipswich Inner
Local GovernmentIpswich
Federal ElectorateBlair

Age Profile

0–14 (19.4%) 15–24 (11.3%) 25–44 (26.7%) 45–64 (23.5%) 65+ (19.1%)
Show counts
0–14 years743 (19.4%)
15–24 years431 (11.3%)
25–44 years1,022 (26.7%)
45–64 years901 (23.5%)
65+ years731 (19.1%)

Housing Tenure

Owned outright (28.0%) Mortgaged (34.3%) Rented (37.7%)

SEIFA Socio-economic Index

Index of Relative Socio-economic Advantage and Disadvantage (IRSAD), decile 2 of 10. Higher deciles indicate more advantage.

Health Conditions (2021 Census)

Asthma471 (12.3%)
Arthritis469 (12.2%)
Diabetes260 (6.8%)
Heart Disease214 (5.6%)
Cancer136 (3.6%)
Lung Condition130 (3.4%)
Dementia22 (0.6%)

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

Motor Vehicles per Dwelling

No vehicle141 (9.4%)
1 vehicle604 (40.2%)
2 vehicles521 (34.6%)
3+ vehicles238 (15.8%)

Schools in Silkstone

Silkstone State School
Primary · Gov · ICSEA 937 · 675 students
Claremont Special School
Special · Gov · ICSEA 964 · 199 students

Suburbs Near Silkstone

Same Postcode (4304)

More Silkstone 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.