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Queensland · Postcode 4306
Mount Marrow postcode and suburb data
Queensland · Phone area code 07 · 43 km from Brisbane
Suburb snapshot
Mount Marrow 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 Marrow ranks: household income is in the top 25% of QLD suburbs; rents are among the top 10% in QLD.
ABS Census 2021 · SEIFA 2021Detailed comparison table
Mount Marrow vs the QLD average and the national average, using population-weighted 2021 Census data.
| Metric | Mount Marrow | QLD avg | AU avg | Greater 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
Location, Census, housing, SEIFA and geography fields used across this profile.
| Postcode | 4306 |
| State | Queensland (QLD) |
| Phone Area Code | 07 |
| Population (2021) | 182 |
| Median Age | 32 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 Size | 3.3 persons |
| Area | 8.3 km² |
| Population Density | 22/km² |
| Total Dwellings | 51 |
| Australian Citizens | 91.8% |
| Indigenous Population | 26 (14.3%) |
| Unemployment Rate | 0.0% |
| SEIFA IRSAD Decile | 4/10 (below average) |
| Latitude | -27.6 |
| Longitude | 152.616667 |
| Distance from Brisbane | 43 km |
| Region (SA4) | Ipswich |
| Area (SA3) | Ipswich Inner |
| Local Government | Ipswich |
| Federal Electorate | Blair |
| State Electorate | Scenic Rim |
| Time Zone | AEST (UTC+10), Australia/Brisbane (standard time) |
Age Profile
Show counts
| 0–14 years | 47 (25.8%) |
| 15–24 years | 18 (9.9%) |
| 25–44 years | 33 (18.1%) |
| 45–64 years | 49 (26.9%) |
| 65+ years | 23 (12.6%) |
Housing Tenure
SEIFA socio-economic index
Health Conditions (2021 Census)
| Arthritis | 15 (8.2%) |
| Cancer | 9 (4.9%) |
| Heart Disease | 8 (4.4%) |
| Diabetes | 7 (3.8%) |
| Asthma | 7 (3.8%) |
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 | 12 (21.8%) |
| 2 vehicles | 19 (34.5%) |
| 3+ vehicles | 24 (43.6%) |
Schools in Mount Marrow
ACARA 2025 school profiles for schools located in Mount Marrow. ICSEA is shown where ACARA publishes it.
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.