Lake Biddy Postcode
Western Australia
Income, rent and SEIFA figures are from the ABS 2021 Census and are reported in 2021 dollars, not adjusted for subsequent inflation.
How Lake Biddy Compares
Lake Biddy vs the WA average and the national average (2021 Census, population-weighted).
| Metric | Lake Biddy | WA avg | AU avg |
|---|---|---|---|
| Household income/wk | $1,125 -WA | $1,891 | $1,836 |
| Rent/wk | $200 -WA | $355 | $390 |
| Mortgage/month | $109 -WA | $1,890 | $1,958 |
| Median age | 44 | 43.0 | 45.0 |
| SEIFA decile | 10/10 +WA | 6.0/10 | 6.0/10 |
| Unemployment | 0.0% -WA | 5.0% | 5.0% |
Green pill = at least 10% above the WA average; red = at least 10% below; grey = within 10%. For unemployment, colour polarity is inverted: lower is better.
Lake Biddy is a very remote community in Western Australia, with postcode 6355. It lies roughly 310 km from Perth, classified by the ABS as very remote Australia. The area is administered by Lake Grace.
According to the 2021 Census, Lake Biddy has a population of 59 with a median age of 44. The median weekly household income is $1,125, below the WA average.
Housing in Lake Biddy includes a median weekly rent of $200, median monthly mortgage repayment of $109, with 23 total dwellings. Housing costs in the area sit below the WA average. Owner-occupied dwellings (owned or mortgaged) make up 100.0% of housing.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Lake Biddy scores in decile 10 out of 10, which is well above the national average.
Lake Biddy is part of the Wheat Belt - South statistical area in Western Australia.
Lake Biddy Details
| Postcode | 6355 |
| State | Western Australia (WA) |
| Phone Area Code | 08 |
| Population (2021) | 59 |
| Median Age | 44 years |
| Median Household Income (Census 2021) | $1,125/week |
| Median Personal Income (Census 2021) | $887/week |
| Median Weekly Rent (Census 2021) | $200 |
| Median Monthly Mortgage (Census 2021) | $109 |
| Average Household Size | 2.5 persons |
| Area | 575.7 km² |
| Population Density | 0/km² |
| Total Dwellings | 23 |
| Australian Citizens | 84.7% |
| Unemployment Rate | 0.0% |
| SEIFA IRSAD Decile | 10/10 (well above average) |
| Latitude | -32.9117672 |
| Longitude | 118.9632061 |
| Distance from Perth | 310 km |
| Region (SA4) | Western Australia - Wheat Belt |
| Area (SA3) | Wheat Belt - South |
| Local Government | Lake Grace |
| Federal Electorate | O'Connor |
Age Profile
Show counts
| 0–14 years | 13 (22.0%) |
| 15–24 years | 5 (8.5%) |
| 25–44 years | 10 (16.9%) |
| 45–64 years | 23 (39.0%) |
| 65+ years | 13 (22.0%) |
Housing Tenure
SEIFA Socio-economic Index
Index of Relative Socio-economic Advantage and Disadvantage (IRSAD), decile 10 of 10. Higher deciles indicate more advantage.
Health Conditions (2021 Census)
| Arthritis | 5 (8.5%) |
| Asthma | 4 (6.8%) |
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 | 7 (36.8%) |
| 3+ vehicles | 12 (63.2%) |
Suburbs Near Lake Biddy
Same Postcode (6355)
More Lake Biddy 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.