Victoria · Postcode 3579
Westby postcode and suburb data
Victoria · Phone area code 03 · 259 km from Melbourne
Suburb snapshot
Westby at a glance vs VIC
Fast facts and benchmark bars show the suburb's key postcode, Census, SEIFA, school and LGA signals in context.
Quick facts
Benchmarks against VIC
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
Westby vs the VIC average and the national average, using population-weighted 2021 Census data.
| Metric | Westby | VIC avg | AU avg |
|---|---|---|---|
| Household income/wk | $1,625 -VIC | $1,817 | $1,836 |
| Rent/wk | $150 -VIC | $375 | $390 |
| Mortgage/month | $1,177 -VIC | $1,933 | $1,958 |
| Median age | 35 | 46.0 | 45.0 |
| SEIFA decile | 3/10 -VIC | 6.0/10 | 6.0/10 |
| Unemployment | 0.0% -VIC | 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.
Westby is a locality 259 km from Melbourne in Victoria, classified as outer regional by the ABS. The postcode is 3579. It falls within the North West region. The local government area is Gannawarra.
According to the 2021 Census, Westby has a population of 27 with a median age of 35. The median weekly household income is $1,625, below the VIC average.
Housing in Westby includes a median weekly rent of $150, median monthly mortgage repayment of $1,177, with 4 total dwellings. Housing costs in the area sit below the VIC average. Owner-occupied dwellings (owned or mortgaged) make up 100.0% of housing.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Westby scores in decile 3 out of 10, which is below the national average.
Westby is part of the Murray River - Swan Hill statistical area in Victoria.
Westby details
Location, Census, housing, SEIFA and geography fields used across this profile.
| Postcode | 3579 |
| State | Victoria (VIC) |
| Phone Area Code | 03 |
| Population (2021) | 27 |
| Median Age | 35 years |
| Median Household Income (Census 2021) | $1,625/week |
| Median Personal Income (Census 2021) | $624/week |
| Median Weekly Rent (Census 2021) | $150 |
| Median Monthly Mortgage (Census 2021) | $1,177 |
| Average Household Size | 3.6 persons |
| Area | 20.6 km² |
| Population Density | 1/km² |
| Total Dwellings | 4 |
| Australian Citizens | 100.0% |
| Unemployment Rate | 0.0% |
| SEIFA IRSAD Decile | 3/10 (below average) |
| Latitude | -35.6334872 |
| Longitude | 143.9472405 |
| Distance from Melbourne | 259 km |
| Region (SA4) | North West |
| Area (SA3) | Murray River - Swan Hill |
| Local Government | Gannawarra |
| Federal Electorate | Mallee |
| State Electorate | Murray Plains (Northern Victoria) |
| Time Zone | AEST (UTC+10), Australia/Melbourne (standard time) |
Age Profile
Show counts
| 0–14 years | 12 (44.4%) |
| 15–24 years | 0 (0.0%) |
| 25–44 years | 6 (22.2%) |
| 45–64 years | 3 (11.1%) |
| 65+ years | 5 (18.5%) |
Housing Tenure
SEIFA socio-economic index
Health Conditions (2021 Census)
| Arthritis | 4 (14.8%) |
| Asthma | 4 (14.8%) |
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 | 0 (0.0%) |
| 2 vehicles | 4 (100.0%) |
| 3+ vehicles | 0 (0.0%) |
Suburbs Near Westby
Same Postcode (3579)
More Westby 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.