Twelve Mile Creek Postcode

New South Wales

Inner Regional Bottom 20% SEIFA
2324
Postcode for Twelve Mile Creek, NSW
Phone area code: 02 · 148 km from Sydney · Pop. 159
159
Population
49
Median Age
$933
Household Income/wk
$273
Median Rent/wk
1/10
SEIFA Advantage
22.7
Area (km²)

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.

How Twelve Mile Creek Compares

Twelve Mile Creek vs the NSW average and the national average (2021 Census, population-weighted).

MetricTwelve Mile CreekNSW avgAU 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

Postcode2324
StateNew South Wales (NSW)
Phone Area Code02
Population (2021)159
Median Age49 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 Size1.9 persons
Area22.7 km²
Population Density7/km²
Total Dwellings66
Australian Citizens83.0%
Indigenous Population23 (14.5%)
Unemployment Rate17.6%
SEIFA IRSAD Decile1/10 (well below average)
Latitude-32.6533352
Longitude151.8671786
Distance from Sydney148 km
Region (SA4)Mid North Coast
Area (SA3)Great Lakes
Local GovernmentPort Stephens
Federal ElectoratePaterson

Age Profile

0–14 (15.1%) 15–24 (2.5%) 25–44 (22.0%) 45–64 (30.8%) 65+ (24.5%)
Show counts
0–14 years24 (15.1%)
15–24 years4 (2.5%)
25–44 years35 (22.0%)
45–64 years49 (30.8%)
65+ years39 (24.5%)

Housing Tenure

Owned outright (44.8%) Mortgaged (5.2%) Rented (50.0%)

SEIFA Socio-economic Index

Index of Relative Socio-economic Advantage and Disadvantage (IRSAD), decile 1 of 10. Higher deciles indicate more advantage.

Health Conditions (2021 Census)

Arthritis25 (15.7%)
Diabetes20 (12.6%)
Asthma15 (9.4%)
Heart Disease9 (5.7%)
Lung Condition9 (5.7%)
Cancer6 (3.8%)

Long-term health conditions self-reported in the 2021 Census. Persons may report more than one condition.

Motor Vehicles per Dwelling

No vehicle6 (9.2%)
1 vehicle29 (44.6%)
2 vehicles18 (27.7%)
3+ vehicles12 (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.