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Round Mountain Postcode
New South Wales
Income, rent and SEIFA figures are from the ABS 2021 Census and are reported in 2021 dollars, not adjusted for subsequent inflation.
How Round Mountain Compares
Round Mountain vs the NSW average and the national average (2021 Census, population-weighted).
| Metric | Round Mountain | NSW avg | AU avg |
|---|---|---|---|
| Household income/wk | $1,375 -NSW | $1,931 | $1,836 |
| Rent/wk | $338 -NSW | $445 | $390 |
| Mortgage/month | $2,167 ≈NSW | $2,247 | $1,958 |
| Median age | 50 | 45.0 | 45.0 |
| SEIFA decile | 7/10 ≈NSW | 6.0/10 | 6.0/10 |
| Unemployment | 0.0% -NSW | 5.0% | 5.0% |
Green pill = at least 10% above the NSW average; red = at least 10% below; grey = within 10%. For unemployment, colour polarity is inverted: lower is better.
Round Mountain is a locality 653 km from Sydney in New South Wales, classified as inner regional by the ABS. The postcode is 2484. It falls within the Richmond - Tweed region. The local government area is Tweed.
According to the 2021 Census, Round Mountain has a population of 148 with a median age of 50. The median weekly household income is $1,375, below the NSW average. The Indigenous population is 6 (4.1% of residents).
Housing in Round Mountain includes a median weekly rent of $338, median monthly mortgage repayment of $2,167, with 56 total dwellings. Housing costs in the area sit below the NSW average. Owner-occupied dwellings (owned or mortgaged) make up 85.1% of housing.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Round Mountain scores in decile 7 out of 10, which is above the national average.
Round Mountain is part of the Tweed Valley statistical area in New South Wales.
Round Mountain Details
| Postcode | 2484 |
| State | New South Wales (NSW) |
| Phone Area Code | 02 |
| Population (2021) | 148 |
| Median Age | 50 years |
| Median Household Income (Census 2021) | $1,375/week |
| Median Personal Income (Census 2021) | $640/week |
| Median Weekly Rent (Census 2021) | $338 |
| Median Monthly Mortgage (Census 2021) | $2,167 |
| Average Household Size | 2.6 persons |
| Area | 10.6 km² |
| Population Density | 14/km² |
| Total Dwellings | 56 |
| Australian Citizens | 87.8% |
| Indigenous Population | 6 (4.1%) |
| Unemployment Rate | 0.0% |
| SEIFA IRSAD Decile | 7/10 (above average) |
| Latitude | -28.35 |
| Longitude | 153.55 |
| Distance from Sydney | 653 km |
| Region (SA4) | Richmond - Tweed |
| Area (SA3) | Tweed Valley |
| Local Government | Tweed |
| Federal Electorate | Richmond |
Age Profile
Show counts
| 0–14 years | 26 (17.6%) |
| 15–24 years | 11 (7.4%) |
| 25–44 years | 30 (20.3%) |
| 45–64 years | 57 (38.5%) |
| 65+ years | 33 (22.3%) |
Housing Tenure
SEIFA Socio-economic Index
Index of Relative Socio-economic Advantage and Disadvantage (IRSAD), decile 7 of 10. Higher deciles indicate more advantage.
Health Conditions (2021 Census)
| Arthritis | 19 (12.8%) |
| Heart Disease | 11 (7.4%) |
| Asthma | 7 (4.7%) |
| Lung Condition | 5 (3.4%) |
| Cancer | 5 (3.4%) |
| Diabetes | 4 (2.7%) |
| Dementia | 3 (2.0%) |
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 (24.5%) |
| 2 vehicles | 16 (32.7%) |
| 3+ vehicles | 21 (42.9%) |
Suburbs Near Round Mountain
Same Postcode (2484)
More Round Mountain 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.