Mount Byron Postcode

Queensland

Inner Regional
4312
Postcode for Mount Byron, QLD
Phone area code: 07 · 52 km from Brisbane · Pop. 21
21
Population
57
Median Age
$900
Household Income/wk
$177
Median Rent/wk
6/10
SEIFA Advantage
148.9
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 Mount Byron ranks: household income sits in the bottom 25% of QLD suburbs.

How Mount Byron Compares

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

MetricMount ByronQLD avgAU avg
Household income/wk $900 -QLD $1,770 $1,836
Rent/wk $177 -QLD $380 $390
Mortgage/month $1,171 -QLD $1,774 $1,958
Median age 57 44.0 45.0
SEIFA decile 6/10 +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.

Mount Byron is a locality 52 km from Brisbane in Queensland, classified as inner regional by the ABS. The postcode is 4312. It falls within the Ipswich region. The local government area is Somerset.

According to the 2021 Census, Mount Byron has a population of 21 with a median age of 57. The median weekly household income is $900, below the QLD average.

Housing in Mount Byron includes a median weekly rent of $177, median monthly mortgage repayment of $1,171, with 9 total dwellings. Housing costs in the area sit below the QLD average. Rental properties account for 42.9% of dwellings.

On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Mount Byron scores in decile 6 out of 10, which is around the national average.

Mount Byron is part of the Ipswich Hinterland statistical area in Queensland.

Mount Byron Details

Postcode4312
StateQueensland (QLD)
Phone Area Code07
Population (2021)21
Median Age57 years
Median Household Income (Census 2021)$900/week
Median Personal Income (Census 2021)$675/week
Median Weekly Rent (Census 2021)$177
Median Monthly Mortgage (Census 2021)$1,171
Average Household Size2.4 persons
Area148.9 km²
Population Density0/km²
Total Dwellings9
Australian Citizens100.0%
Unemployment Rate0.0%
SEIFA IRSAD Decile6/10 (average)
Latitude-27.1479369
Longitude152.6464319
Distance from Brisbane52 km
Region (SA4)Ipswich
Area (SA3)Ipswich Hinterland
Local GovernmentSomerset
Federal ElectorateBlair

Age Profile

0–14 (14.3%) 15–24 (0.0%) 25–44 (23.8%) 45–64 (14.3%) 65+ (28.6%)
Show counts
0–14 years3 (14.3%)
15–24 years0 (0.0%)
25–44 years5 (23.8%)
45–64 years3 (14.3%)
65+ years6 (28.6%)

Housing Tenure

Owned outright (57.1%) Mortgaged (0.0%) Rented (42.9%)

SEIFA Socio-economic Index

Index of Relative Socio-economic Advantage and Disadvantage (IRSAD), decile 6 of 10. Higher deciles indicate more advantage.

Health Conditions (2021 Census)

Asthma6 (28.6%)
Arthritis3 (14.3%)
Heart Disease3 (14.3%)
Cancer3 (14.3%)

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 vehicle0 (0.0%)
2 vehicles5 (100.0%)
3+ vehicles0 (0.0%)

Suburbs Near Mount Byron

Same Postcode (4312)

More Mount Byron 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.