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William Bay 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 William Bay Compares
William Bay vs the WA average and the national average (2021 Census, population-weighted).
| Metric | William Bay | WA avg | AU avg |
|---|---|---|---|
| Household income/wk | $1,104 -WA | $1,891 | $1,836 |
| Rent/wk | $275 -WA | $355 | $390 |
| Mortgage/month | $2,192 +WA | $1,890 | $1,958 |
| Median age | 51 | 43.0 | 45.0 |
| SEIFA decile | 7/10 ≈WA | 6.0/10 | 6.0/10 |
| Unemployment | 6.3% +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.
William Bay is a locality 360 km from Perth in Western Australia, classified as outer regional by the ABS. The postcode is 6333. It falls within the Western Australia - Wheat Belt region. The local government area is Denmark.
According to the 2021 Census, William Bay has a population of 164 with a median age of 51. The median weekly household income is $1,104, below the WA average. The unemployment rate is 6.3%, higher than the WA average.
Housing in William Bay includes a median weekly rent of $275, median monthly mortgage repayment of $2,192, with 53 total dwellings. These housing costs sit above the WA average. Owner-occupied dwellings (owned or mortgaged) make up 86.4% of housing.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, William Bay scores in decile 7 out of 10, which is above the national average.
William Bay is part of the Albany statistical area in Western Australia.
William Bay Details
| Postcode | 6333 |
| State | Western Australia (WA) |
| Phone Area Code | 08 |
| Population (2021) | 164 |
| Median Age | 51 years |
| Median Household Income (Census 2021) | $1,104/week |
| Median Personal Income (Census 2021) | $606/week |
| Median Weekly Rent (Census 2021) | $275 |
| Median Monthly Mortgage (Census 2021) | $2,192 |
| Average Household Size | 2.6 persons |
| Area | 48.8 km² |
| Population Density | 3/km² |
| Total Dwellings | 53 |
| Australian Citizens | 78.0% |
| Unemployment Rate | 6.3% |
| SEIFA IRSAD Decile | 7/10 (above average) |
| Latitude | -34.9866288 |
| Longitude | 117.2088167 |
| Distance from Perth | 360 km |
| Region (SA4) | Western Australia - Wheat Belt |
| Area (SA3) | Albany |
| Local Government | Denmark |
| Federal Electorate | O'Connor |
Age Profile
Show counts
| 0–14 years | 26 (15.9%) |
| 15–24 years | 13 (7.9%) |
| 25–44 years | 26 (15.9%) |
| 45–64 years | 55 (33.5%) |
| 65+ years | 39 (23.8%) |
Housing Tenure
SEIFA Socio-economic Index
Index of Relative Socio-economic Advantage and Disadvantage (IRSAD), decile 7 of 10. Higher deciles indicate more advantage.
Health Conditions (2021 Census)
| Arthritis | 14 (8.5%) |
| Asthma | 8 (4.9%) |
| Cancer | 5 (3.0%) |
| Diabetes | 4 (2.4%) |
| Heart Disease | 4 (2.4%) |
| Lung Condition | 3 (1.8%) |
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 | 10 (22.2%) |
| 2 vehicles | 22 (48.9%) |
| 3+ vehicles | 13 (28.9%) |
Suburbs Near William Bay
Same Postcode (6333)
More William Bay 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.