- Home
- New South Wales
- Other Territories
- Jervis Bay
- Mundamia
New South Wales · Postcode 2540
Mundamia postcode and suburb data
New South Wales · Phone area code 02 · 127 km from Sydney
Suburb snapshot
Mundamia 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.
Detailed comparison table
Mundamia vs the NSW average and the national average, using population-weighted 2021 Census data.
| Metric | Mundamia | NSW avg | AU avg |
|---|---|---|---|
| Household income/wk | $1,406 -NSW | $1,931 | $1,836 |
| Rent/wk | $250 -NSW | $445 | $390 |
| Mortgage/month | $2,167 ≈NSW | $2,247 | $1,958 |
| Median age | 53 | 45.0 | 45.0 |
| SEIFA decile | 5/10 ≈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.
Mundamia (2540) is a coastal town in regional New South Wales. It lies around 127 km from Sydney by road. The locality is part of the Jervis Bay statistical area. It is administered by Shoalhaven.
According to the 2021 Census, Mundamia has a population of 85 with a median age of 53. The median weekly household income is $1,406, below the NSW average. The Indigenous population is 5 (5.9% of residents).
Housing in Mundamia includes a median weekly rent of $250, median monthly mortgage repayment of $2,167, with 33 total dwellings. Housing costs in the area sit below the NSW average. Owner-occupied dwellings (owned or mortgaged) make up 73.1% of housing.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Mundamia scores in decile 5 out of 10, which is around the national average.
Mundamia is part of the Jervis Bay statistical area in New South Wales.
Mundamia 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) | 85 |
| Median Age | 53 years |
| Median Household Income (Census 2021) | $1,406/week |
| Median Personal Income (Census 2021) | $603/week |
| Median Weekly Rent (Census 2021) | $250 |
| Median Monthly Mortgage (Census 2021) | $2,167 |
| Average Household Size | 2.4 persons |
| Area | 12.1 km² |
| Population Density | 7/km² |
| Total Dwellings | 33 |
| Australian Citizens | 98.8% |
| Indigenous Population | 5 (5.9%) |
| Unemployment Rate | 0.0% |
| SEIFA IRSAD Decile | 5/10 (average) |
| Latitude | -34.877716 |
| Longitude | 150.5657441 |
| Distance from Sydney | 127 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 | 10 (11.8%) |
| 15–24 years | 4 (4.7%) |
| 25–44 years | 16 (18.8%) |
| 45–64 years | 37 (43.5%) |
| 65+ years | 28 (32.9%) |
Housing Tenure
SEIFA socio-economic index
Health Conditions (2021 Census)
| Arthritis | 19 (22.4%) |
| Asthma | 14 (16.5%) |
| Heart Disease | 10 (11.8%) |
| Cancer | 9 (10.6%) |
| Diabetes | 4 (4.7%) |
| Lung Condition | 3 (3.5%) |
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 (20.7%) |
| 2 vehicles | 10 (34.5%) |
| 3+ vehicles | 13 (44.8%) |
Suburbs Near Mundamia
Same Postcode (2540)
More Mundamia 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.