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Curtis Island 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 Curtis Island Compares
Curtis Island vs the QLD average and the national average (2021 Census, population-weighted).
| Metric | Curtis Island | QLD avg | AU avg |
|---|---|---|---|
| Household income/wk | $575 -QLD | $1,770 | $1,836 |
| Mortgage/month | $1,733 ≈QLD | $1,774 | $1,958 |
| Median age | 62 | 44.0 | 45.0 |
| SEIFA decile | 5/10 ≈QLD | 4.0/10 | 6.0/10 |
| Unemployment | 27.3% +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.
Curtis Island is a remote community in Queensland, with postcode 4680. It lies roughly 447 km from Brisbane, classified by the ABS as remote Australia. The area is administered by Gladstone.
According to the 2021 Census, Curtis Island has a population of 36 with a median age of 62. The median weekly household income is $575, below the QLD average. The unemployment rate is 27.3%, higher than the QLD average.
Housing in Curtis Island includes a median monthly mortgage repayment of $1,733, 15 total dwellings. Housing costs in the area sit below the QLD average. Owner-occupied dwellings (owned or mortgaged) make up 100.0% of housing.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Curtis Island scores in decile 5 out of 10, which is around the national average.
Curtis Island is part of the Gladstone statistical area in Queensland.
Curtis Island Details
| Postcode | 4680 |
| State | Queensland (QLD) |
| Phone Area Code | 07 |
| Population (2021) | 36 |
| Median Age | 62 years |
| Median Household Income (Census 2021) | $575/week |
| Median Personal Income (Census 2021) | $425/week |
| Median Monthly Mortgage (Census 2021) | $1,733 |
| Average Household Size | 1.8 persons |
| Area | 572.1 km² |
| Population Density | 0/km² |
| Total Dwellings | 15 |
| Australian Citizens | 83.3% |
| Unemployment Rate | 27.3% |
| SEIFA IRSAD Decile | 5/10 (average) |
| Latitude | -23.7565775 |
| Longitude | 151.3103895 |
| Distance from Brisbane | 447 km |
| Region (SA4) | Central Queensland |
| Area (SA3) | Gladstone |
| Local Government | Gladstone |
| Federal Electorate | Flynn |
Age Profile
Show counts
| 0–14 years | 5 (13.9%) |
| 15–24 years | 0 (0.0%) |
| 25–44 years | 0 (0.0%) |
| 45–64 years | 17 (47.2%) |
| 65+ years | 15 (41.7%) |
Housing Tenure
SEIFA Socio-economic Index
Index of Relative Socio-economic Advantage and Disadvantage (IRSAD), decile 5 of 10. Higher deciles indicate more advantage.
Health Conditions (2021 Census)
| Asthma | 8 (22.2%) |
| Arthritis | 6 (16.7%) |
| Cancer | 5 (13.9%) |
| Heart Disease | 4 (11.1%) |
| Diabetes | 3 (8.3%) |
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 | 4 (28.6%) |
| 2 vehicles | 10 (71.4%) |
| 3+ vehicles | 0 (0.0%) |
Suburbs Near Curtis Island
Same Postcode (4680)
More Curtis Island 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.