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New South Wales · Postcode 2540
Browns Mountain postcode and suburb data
New South Wales · Phone area code 02 · 120 km from Sydney
Suburb snapshot
Browns Mountain at a glance vs NSW
Fast facts and benchmark bars show the suburb's key postcode, Census, SEIFA, school and LGA signals in context.
Quick facts
Benchmarks against NSW
Income, rent and SEIFA figures are from the ABS 2021 Census and are reported in 2021 dollars, not adjusted for subsequent inflation.
Where Browns Mountain ranks: SEIFA decile 9 puts it in the top 20% of Australia for socio-economic advantage.
ABS Census 2021 · SEIFA 2021Detailed comparison table
Browns Mountain vs the NSW average and the national average, using population-weighted 2021 Census data.
| Metric | Browns Mountain | NSW avg | AU avg |
|---|---|---|---|
| Household income/wk | $1,249 -NSW | $1,931 | $1,836 |
| Rent/wk | $165 -NSW | $445 | $390 |
| Mortgage/month | $867 -NSW | $2,247 | $1,958 |
| Median age | 65 | 45.0 | 45.0 |
| SEIFA decile | 9/10 +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.
Browns Mountain is a locality 120 km from Sydney in New South Wales, classified as inner regional by the ABS. The postcode is 2540. It falls within the Other Territories region. The local government area is Shoalhaven.
According to the 2021 Census, Browns Mountain has a population of 20 with a median age of 65. The median weekly household income is $1,249, below the NSW average.
Housing in Browns Mountain includes a median weekly rent of $165, median monthly mortgage repayment of $867, with 9 total dwellings. Housing costs in the area sit below the NSW average. Rental properties account for 57.1% of dwellings.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Browns Mountain scores in decile 9 out of 10, which is well above the national average.
Browns Mountain is part of the Jervis Bay statistical area in New South Wales.
Browns Mountain details
Location, Census, housing, SEIFA and geography fields used across this profile.
| Postcode | 2540 |
| State | New South Wales (NSW) |
| Phone Area Code | 02 |
| Population (2021) | 20 |
| Median Age | 65 years |
| Median Household Income (Census 2021) | $1,249/week |
| Median Personal Income (Census 2021) | $762/week |
| Median Weekly Rent (Census 2021) | $165 |
| Median Monthly Mortgage (Census 2021) | $867 |
| Average Household Size | 1.8 persons |
| Area | 12.6 km² |
| Population Density | 2/km² |
| Total Dwellings | 9 |
| Australian Citizens | 100.0% |
| Unemployment Rate | 0.0% |
| SEIFA IRSAD Decile | 9/10 (well above average) |
| Latitude | -34.7947863 |
| Longitude | 150.5298387 |
| Distance from Sydney | 120 km |
| Region (SA4) | Other Territories |
| Area (SA3) | Jervis Bay |
| Local Government | Shoalhaven |
| Federal Electorate | Gilmore |
| State Electorate | Unclassified (OT) |
| Time Zone | AEST (UTC+10), Australia/Sydney (standard time) |
Age Profile
Show counts
| 0–14 years | 0 (0.0%) |
| 15–24 years | 0 (0.0%) |
| 25–44 years | 3 (15.0%) |
| 45–64 years | 6 (30.0%) |
| 65+ years | 9 (45.0%) |
Housing Tenure
SEIFA socio-economic index
Health Conditions (2021 Census)
| Arthritis | 5 (25.0%) |
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 | 6 (46.2%) |
| 2 vehicles | 7 (53.8%) |
| 3+ vehicles | 0 (0.0%) |
Suburbs Near Browns Mountain
Same Postcode (2540)
More Browns 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.