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Mount Gravatt Postcode
Queensland
Income, rent and SEIFA figures are from the ABS 2021 Census and are reported in 2021 dollars, not adjusted for subsequent inflation.
How Mount Gravatt Compares
Mount Gravatt vs the QLD average and the national average (2021 Census, population-weighted).
| Metric | Mount Gravatt | QLD avg | AU avg | Greater Brisbane |
|---|---|---|---|---|
| Household income/wk | $1,875 ≈QLD | $1,770 | $1,836 | $1,945 |
| Rent/wk | $380 ≈QLD | $380 | $390 | $402 |
| Mortgage/month | $2,001 +QLD | $1,774 | $1,958 | $1,919 |
| Median age | 36 | 44.0 | 45.0 | 38.0 |
| SEIFA decile | 8/10 +QLD | 4.0/10 | 6.0/10 | 7.0/10 |
| Unemployment | 5.2% -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 4122 covers Mount Gravatt, an inland suburb of Brisbane about 8 km from the city centre. It forms part of the Brisbane - South region of Queensland. Local government services are provided by Brisbane.
According to the 2021 Census, Mount Gravatt has a population of 3,733 with a median age of 36. The median weekly household income is $1,875, close to the QLD average. The unemployment rate is 5.2%, lower than the QLD average. The Indigenous population is 71 (1.9% of residents).
Housing in Mount Gravatt includes a median weekly rent of $380, median monthly mortgage repayment of $2,001, with 1,493 total dwellings. These housing costs sit above the QLD average. Rental properties account for 43.5% of dwellings.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Mount Gravatt scores in decile 8 out of 10, which is above the national average.
There are 4 schools in the Mount Gravatt area, including Mount Gravatt State High School, St Agnes School, Mount Gravatt State School and others.
Mount Gravatt is part of the Mt Gravatt statistical area in Queensland.
Mount Gravatt Details
| Postcode | 4122 |
| State | Queensland (QLD) |
| Phone Area Code | 07 |
| Population (2021) | 3,733 |
| Median Age | 36 years |
| Median Household Income (Census 2021) | $1,875/week |
| Median Personal Income (Census 2021) | $938/week |
| Median Weekly Rent (Census 2021) | $380 |
| Median Monthly Mortgage (Census 2021) | $2,001 |
| Average Household Size | 2.3 persons |
| Area | 2.9 km² |
| Population Density | 1275/km² |
| Total Dwellings | 1,493 |
| Australian Citizens | 84.3% |
| Indigenous Population | 71 (1.9%) |
| Unemployment Rate | 5.2% |
| SEIFA IRSAD Decile | 8/10 (above average) |
| Latitude | -27.5364014 |
| Longitude | 153.0671385 |
| Distance from Brisbane | 8 km |
| Region (SA4) | Brisbane - South |
| Area (SA3) | Mt Gravatt |
| Local Government | Brisbane |
| Federal Electorate | Bonner |
Age Profile
Show counts
| 0–14 years | 647 (17.3%) |
| 15–24 years | 545 (14.6%) |
| 25–44 years | 1,141 (30.6%) |
| 45–64 years | 846 (22.7%) |
| 65+ years | 552 (14.8%) |
Housing Tenure
SEIFA Socio-economic Index
Index of Relative Socio-economic Advantage and Disadvantage (IRSAD), decile 8 of 10. Higher deciles indicate more advantage.
Health Conditions (2021 Census)
| Asthma | 338 (9.1%) |
| Arthritis | 218 (5.8%) |
| Diabetes | 156 (4.2%) |
| Heart Disease | 137 (3.7%) |
| Cancer | 103 (2.8%) |
| Lung Condition | 70 (1.9%) |
| Dementia | 12 (0.3%) |
Long-term health conditions self-reported in the 2021 Census. Persons may report more than one condition.
Motor Vehicles per Dwelling
| No vehicle | 164 (11.1%) |
| 1 vehicle | 606 (41.1%) |
| 2 vehicles | 507 (34.3%) |
| 3+ vehicles | 199 (13.5%) |
Schools in Mount Gravatt
Suburbs Near Mount Gravatt
Same Postcode (4122)
More Mount Gravatt 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.