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Queensland · Postcode 4312
Mount Byron postcode and suburb data
Queensland · Phone area code 07 · 52 km from Brisbane
Suburb snapshot
Mount Byron at a glance vs QLD
Fast facts and benchmark bars show the suburb's key postcode, Census, SEIFA, school and LGA signals in context.
Quick facts
Benchmarks against QLD
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.
ABS Census 2021 · SEIFA 2021Detailed comparison table
Mount Byron vs the QLD average and the national average, using population-weighted 2021 Census data.
| Metric | Mount Byron | QLD avg | AU 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
Location, Census, housing, SEIFA and geography fields used across this profile.
| Postcode | 4312 |
| State | Queensland (QLD) |
| Phone Area Code | 07 |
| Population (2021) | 21 |
| Median Age | 57 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 Size | 2.4 persons |
| Area | 148.9 km² |
| Population Density | 0/km² |
| Total Dwellings | 9 |
| Australian Citizens | 100.0% |
| Unemployment Rate | 0.0% |
| SEIFA IRSAD Decile | 6/10 (average) |
| Latitude | -27.1479369 |
| Longitude | 152.6464319 |
| Distance from Brisbane | 52 km |
| Region (SA4) | Ipswich |
| Area (SA3) | Ipswich Hinterland |
| Local Government | Somerset |
| Federal Electorate | Blair |
| State Electorate | Nanango |
| Time Zone | AEST (UTC+10), Australia/Brisbane (standard time) |
Age Profile
Show counts
| 0–14 years | 3 (14.3%) |
| 15–24 years | 0 (0.0%) |
| 25–44 years | 5 (23.8%) |
| 45–64 years | 3 (14.3%) |
| 65+ years | 6 (28.6%) |
Housing Tenure
SEIFA socio-economic index
Health Conditions (2021 Census)
| Asthma | 6 (28.6%) |
| Arthritis | 3 (14.3%) |
| Heart Disease | 3 (14.3%) |
| Cancer | 3 (14.3%) |
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 | 0 (0.0%) |
| 2 vehicles | 5 (100.0%) |
| 3+ vehicles | 0 (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.