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New South Wales · Postcode 2324
Twelve Mile Creek postcode and suburb data
New South Wales · Phone area code 02 · 148 km from Sydney
Suburb snapshot
Twelve Mile Creek 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 Twelve Mile Creek ranks: household income sits in the bottom 25% of NSW suburbs; SEIFA decile 1 places it in the bottom 20% of Australia for socio-economic advantage.
ABS Census 2021 · SEIFA 2021Detailed comparison table
Twelve Mile Creek vs the NSW average and the national average, using population-weighted 2021 Census data.
| Metric | Twelve Mile Creek | NSW avg | AU avg |
|---|---|---|---|
| Household income/wk | $933 -NSW | $1,931 | $1,836 |
| Rent/wk | $273 -NSW | $445 | $390 |
| Mortgage/month | $1,582 -NSW | $2,247 | $1,958 |
| Median age | 49 | 45.0 | 45.0 |
| SEIFA decile | 1/10 -NSW | 6.0/10 | 6.0/10 |
| Unemployment | 17.6% +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.
Twelve Mile Creek is a locality 148 km from Sydney in New South Wales, classified as inner regional by the ABS. The postcode is 2324. It falls within the Mid North Coast region. The local government area is Port Stephens.
According to the 2021 Census, Twelve Mile Creek has a population of 159 with a median age of 49. The median weekly household income is $933, below the NSW average. The unemployment rate is 17.6%, higher than the NSW average. The Indigenous population is 23 (14.5% of residents).
Housing in Twelve Mile Creek includes a median weekly rent of $273, median monthly mortgage repayment of $1,582, with 66 total dwellings. Housing costs in the area sit below the NSW average. Rental properties account for 50.0% of dwellings.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Twelve Mile Creek scores in decile 1 out of 10, which is well below the national average.
Twelve Mile Creek is part of the Great Lakes statistical area in New South Wales.
Twelve Mile Creek details
Location, Census, housing, SEIFA and geography fields used across this profile.
| Postcode | 2324 |
| State | New South Wales (NSW) |
| Phone Area Code | 02 |
| Population (2021) | 159 |
| Median Age | 49 years |
| Median Household Income (Census 2021) | $933/week |
| Median Personal Income (Census 2021) | $556/week |
| Median Weekly Rent (Census 2021) | $273 |
| Median Monthly Mortgage (Census 2021) | $1,582 |
| Average Household Size | 1.9 persons |
| Area | 22.7 km² |
| Population Density | 7/km² |
| Total Dwellings | 66 |
| Australian Citizens | 83.0% |
| Indigenous Population | 23 (14.5%) |
| Unemployment Rate | 17.6% |
| SEIFA IRSAD Decile | 1/10 (well below average) |
| Latitude | -32.6533352 |
| Longitude | 151.8671786 |
| Distance from Sydney | 148 km |
| Region (SA4) | Mid North Coast |
| Area (SA3) | Great Lakes |
| Local Government | Port Stephens |
| Federal Electorate | Paterson |
| State Electorate | Upper Hunter |
| Time Zone | AEST (UTC+10), Australia/Sydney (standard time) |
Age Profile
Show counts
| 0–14 years | 24 (15.1%) |
| 15–24 years | 4 (2.5%) |
| 25–44 years | 35 (22.0%) |
| 45–64 years | 49 (30.8%) |
| 65+ years | 39 (24.5%) |
Housing Tenure
SEIFA socio-economic index
Health Conditions (2021 Census)
| Arthritis | 25 (15.7%) |
| Diabetes | 20 (12.6%) |
| Asthma | 15 (9.4%) |
| Heart Disease | 9 (5.7%) |
| Lung Condition | 9 (5.7%) |
| Cancer | 6 (3.8%) |
Long-term health conditions self-reported in the 2021 Census. Persons may report more than one condition.
Motor Vehicles per Dwelling
| No vehicle | 6 (9.2%) |
| 1 vehicle | 29 (44.6%) |
| 2 vehicles | 18 (27.7%) |
| 3+ vehicles | 12 (18.5%) |
Suburbs Near Twelve Mile Creek
Same Postcode (2324)
More Twelve Mile Creek 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.