Killingworth 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 Killingworth Compares
Killingworth vs the NSW average and the national average (2021 Census, population-weighted).
| Metric | Killingworth | NSW avg | AU avg |
|---|---|---|---|
| Household income/wk | $2,091 ≈NSW | $1,931 | $1,836 |
| Rent/wk | $340 -NSW | $445 | $390 |
| Mortgage/month | $1,950 -NSW | $2,247 | $1,958 |
| Median age | 39 | 45.0 | 45.0 |
| SEIFA decile | 5/10 ≈NSW | 6.0/10 | 6.0/10 |
| Unemployment | 4.3% -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.
Postcode 2278 covers Killingworth, an inland suburb of Sydney about 108 km from the city centre. It forms part of the Newcastle and Lake Macquarie region of New South Wales. Local government services are provided by Lake Macquarie.
According to the 2021 Census, Killingworth has a population of 690 with a median age of 39. The median weekly household income is $2,091, close to the NSW average. The unemployment rate is 4.3%, lower than the NSW average. The Indigenous population is 50 (7.2% of residents).
Housing in Killingworth includes a median weekly rent of $340, median monthly mortgage repayment of $1,950, with 219 total dwellings. Housing costs in the area sit below the NSW average. Owner-occupied dwellings (owned or mortgaged) make up 94.8% of housing.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Killingworth scores in decile 5 out of 10, which is around the national average.
Killingworth is part of the Lake Macquarie - West statistical area in New South Wales.
Killingworth Details
| Postcode | 2278 |
| State | New South Wales (NSW) |
| Phone Area Code | 02 |
| Population (2021) | 690 |
| Median Age | 39 years |
| Median Household Income (Census 2021) | $2,091/week |
| Median Personal Income (Census 2021) | $779/week |
| Median Weekly Rent (Census 2021) | $340 |
| Median Monthly Mortgage (Census 2021) | $1,950 |
| Average Household Size | 3.1 persons |
| Area | 23.4 km² |
| Population Density | 29/km² |
| Total Dwellings | 219 |
| Australian Citizens | 96.5% |
| Indigenous Population | 50 (7.2%) |
| Unemployment Rate | 4.3% |
| SEIFA IRSAD Decile | 5/10 (average) |
| Latitude | -32.9378222 |
| Longitude | 151.5555788 |
| Distance from Sydney | 108 km |
| Region (SA4) | Newcastle and Lake Macquarie |
| Area (SA3) | Lake Macquarie - West |
| Local Government | Lake Macquarie |
| Federal Electorate | Hunter |
Age Profile
Show counts
| 0–14 years | 121 (17.5%) |
| 15–24 years | 103 (14.9%) |
| 25–44 years | 172 (24.9%) |
| 45–64 years | 198 (28.7%) |
| 65+ years | 90 (13.0%) |
Housing Tenure
SEIFA Socio-economic Index
Index of Relative Socio-economic Advantage and Disadvantage (IRSAD), decile 5 of 10. Higher deciles indicate more advantage.
Health Conditions (2021 Census)
| Asthma | 91 (13.2%) |
| Arthritis | 65 (9.4%) |
| Diabetes | 30 (4.3%) |
| Heart Disease | 24 (3.5%) |
| Cancer | 14 (2.0%) |
| Lung Condition | 10 (1.4%) |
| Dementia | 5 (0.7%) |
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 | 25 (11.3%) |
| 2 vehicles | 86 (38.7%) |
| 3+ vehicles | 111 (50.0%) |
Suburbs Near Killingworth
Same Postcode (2278)
More Killingworth 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.