Mount Marrow Postcode

Queensland

Inner Regional Above QLD income
4306
Postcode for Mount Marrow, QLD
Phone area code: 07 · 43 km from Brisbane · Pop. 182
182
Population
32
Median Age
$2,031
Household Income/wk
$438
Median Rent/wk
4/10
SEIFA Advantage
8.3
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 Marrow ranks: household income is in the top 25% of QLD suburbs; rents are among the top 10% in QLD.

How Mount Marrow Compares

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

MetricMount MarrowQLD avgAU avgGreater Brisbane
Household income/wk $2,031 +QLD $1,770 $1,836 $1,945
Rent/wk $438 +QLD $380 $390 $402
Mortgage/month $1,517 -QLD $1,774 $1,958 $1,919
Median age 32 44.0 45.0 38.0
SEIFA decile 4/10 ≈QLD 4.0/10 6.0/10 7.0/10
Unemployment 0.0% -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.

Mount Marrow is a locality 43 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, Mount Marrow has a population of 182 with a median age of 32. The median weekly household income is $2,031, above the QLD average. The Indigenous population is 26 (14.3% of residents).

Housing in Mount Marrow includes a median weekly rent of $438, median monthly mortgage repayment of $1,517, with 51 total dwellings. These housing costs sit above the QLD average. Owner-occupied dwellings (owned or mortgaged) make up 85.2% of housing.

On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Mount Marrow scores in decile 4 out of 10, which is below the national average.

Mount Marrow is served by Mount Marrow State School.

Mount Marrow is part of the Ipswich Inner statistical area in Queensland.

Mount Marrow Details

Postcode4306
StateQueensland (QLD)
Phone Area Code07
Population (2021)182
Median Age32 years
Median Household Income (Census 2021)$2,031/week
Median Personal Income (Census 2021)$691/week
Median Weekly Rent (Census 2021)$438
Median Monthly Mortgage (Census 2021)$1,517
Average Household Size3.3 persons
Area8.3 km²
Population Density22/km²
Total Dwellings51
Australian Citizens91.8%
Indigenous Population26 (14.3%)
Unemployment Rate0.0%
SEIFA IRSAD Decile4/10 (below average)
Latitude-27.6
Longitude152.616667
Distance from Brisbane43 km
Region (SA4)Ipswich
Area (SA3)Ipswich Inner
Local GovernmentIpswich
Federal ElectorateBlair

Age Profile

0–14 (25.8%) 15–24 (9.9%) 25–44 (18.1%) 45–64 (26.9%) 65+ (12.6%)
Show counts
0–14 years47 (25.8%)
15–24 years18 (9.9%)
25–44 years33 (18.1%)
45–64 years49 (26.9%)
65+ years23 (12.6%)

Housing Tenure

Owned outright (35.2%) Mortgaged (50.0%) Rented (14.8%)

SEIFA Socio-economic Index

Index of Relative Socio-economic Advantage and Disadvantage (IRSAD), decile 4 of 10. Higher deciles indicate more advantage.

Health Conditions (2021 Census)

Arthritis15 (8.2%)
Cancer9 (4.9%)
Heart Disease8 (4.4%)
Diabetes7 (3.8%)
Asthma7 (3.8%)

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 vehicle12 (21.8%)
2 vehicles19 (34.5%)
3+ vehicles24 (43.6%)

Schools in Mount Marrow

Mount Marrow State School
Primary · Gov · ICSEA 955 · 58 students

Suburbs Near Mount Marrow

Same Postcode (4306)

More Mount Marrow 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.