Cairnlea Postcode
Victoria
Income, rent and SEIFA figures are from the ABS 2021 Census and are reported in 2021 dollars, not adjusted for subsequent inflation.
How Cairnlea Compares
Cairnlea vs the VIC average and the national average (2021 Census, population-weighted).
| Metric | Cairnlea | VIC avg | AU avg | Greater Melbourne |
|---|---|---|---|---|
| Household income/wk | $2,062 +VIC | $1,817 | $1,836 | $1,943 |
| Rent/wk | $400 ≈VIC | $375 | $390 | $404 |
| Mortgage/month | $1,883 ≈VIC | $1,933 | $1,958 | $2,100 |
| Median age | 36 | 46.0 | 45.0 | 39.0 |
| SEIFA decile | 4/10 -VIC | 6.0/10 | 6.0/10 | 9.0/10 |
| Unemployment | 6.6% +VIC | 5.0% | 5.0% | 5.0% |
Green pill = at least 10% above the VIC average; red = at least 10% below; grey = within 10%. For unemployment, colour polarity is inverted: lower is better.
Postcode 3023 covers Cairnlea, an inland suburb of Melbourne about 16 km from the city centre. It forms part of the Melbourne - West region of Victoria. Local government services are provided by Brimbank.
According to the 2021 Census, Cairnlea has a population of 10,038 with a median age of 36. The median weekly household income is $2,062, above the VIC average. The unemployment rate is 6.6%, higher than the VIC average. The Indigenous population is 16 (0.2% of residents).
Housing in Cairnlea includes a median weekly rent of $400, median monthly mortgage repayment of $1,883, with 2,808 total dwellings. Owner-occupied dwellings (owned or mortgaged) make up 84.6% of housing.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Cairnlea scores in decile 4 out of 10, which is below the national average.
Cairnlea is served by Cairnlea Park Primary School.
Cairnlea is part of the Melton - Bacchus Marsh statistical area in Victoria.
Cairnlea Details
| Postcode | 3023 |
| State | Victoria (VIC) |
| Phone Area Code | 03 |
| Population (2021) | 10,038 |
| Median Age | 36 years |
| Median Household Income (Census 2021) | $2,062/week |
| Median Personal Income (Census 2021) | $658/week |
| Median Weekly Rent (Census 2021) | $400 |
| Median Monthly Mortgage (Census 2021) | $1,883 |
| Average Household Size | 3.4 persons |
| Area | 4.4 km² |
| Population Density | 2278/km² |
| Total Dwellings | 2,808 |
| Australian Citizens | 86.3% |
| Indigenous Population | 16 (0.2%) |
| Unemployment Rate | 6.6% |
| SEIFA IRSAD Decile | 4/10 (below average) |
| Latitude | -37.7578477 |
| Longitude | 144.7913339 |
| Distance from Melbourne | 16 km |
| Region (SA4) | Melbourne - West |
| Area (SA3) | Melton - Bacchus Marsh |
| Local Government | Brimbank |
| Federal Electorate | Gorton |
Age Profile
Show counts
| 0–14 years | 1,929 (19.2%) |
| 15–24 years | 1,544 (15.4%) |
| 25–44 years | 2,750 (27.4%) |
| 45–64 years | 2,780 (27.7%) |
| 65+ years | 1,031 (10.3%) |
Housing Tenure
SEIFA Socio-economic Index
Index of Relative Socio-economic Advantage and Disadvantage (IRSAD), decile 4 of 10. Higher deciles indicate more advantage.
Health Conditions (2021 Census)
| Asthma | 776 (7.7%) |
| Diabetes | 597 (5.9%) |
| Arthritis | 439 (4.4%) |
| Heart Disease | 203 (2.0%) |
| Cancer | 146 (1.5%) |
| Lung Condition | 60 (0.6%) |
| Dementia | 54 (0.5%) |
Long-term health conditions self-reported in the 2021 Census. Persons may report more than one condition.
Motor Vehicles per Dwelling
| No vehicle | 78 (2.8%) |
| 1 vehicle | 619 (22.3%) |
| 2 vehicles | 1,191 (42.8%) |
| 3+ vehicles | 893 (32.1%) |
Schools in Cairnlea
Suburbs Near Cairnlea
Same Postcode (3023)
More Cairnlea 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.