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Western Australia · Postcode 6258
Diamond Tree postcode and suburb data
Western Australia · Phone area code 08 · 266 km from Perth
Suburb snapshot
Diamond Tree at a glance vs WA
Fast facts and benchmark bars show the suburb's key postcode, Census, SEIFA, school and LGA signals in context.
Quick facts
Benchmarks against WA
Income, rent and SEIFA figures are from the ABS 2021 Census and are reported in 2021 dollars, not adjusted for subsequent inflation.
Where Diamond Tree ranks: household income is in the top 25% of WA suburbs; rents sit in the cheapest 10% in WA.
ABS Census 2021 · SEIFA 2021Detailed comparison table
Diamond Tree vs the WA average and the national average, using population-weighted 2021 Census data.
| Metric | Diamond Tree | WA avg | AU avg |
|---|---|---|---|
| Household income/wk | $2,374 +WA | $1,891 | $1,836 |
| Mortgage/month | $3,000 +WA | $1,890 | $1,958 |
| Median age | 40 | 43.0 | 45.0 |
| SEIFA decile | 8/10 +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.
Diamond Tree is a remote community in Western Australia, with postcode 6258. It lies roughly 266 km from Perth, classified by the ABS as remote Australia. The area is administered by Manjimup.
According to the 2021 Census, Diamond Tree has a population of 28 with a median age of 40. The median weekly household income is $2,374, above the WA average.
Housing in Diamond Tree includes a median monthly mortgage repayment of $3,000, 10 total dwellings. These housing costs sit above 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, Diamond Tree scores in decile 8 out of 10, which is above the national average.
Diamond Tree is part of the Manjimup statistical area in Western Australia.
Diamond Tree details
Location, Census, housing, SEIFA and geography fields used across this profile.
| Postcode | 6258 |
| State | Western Australia (WA) |
| Phone Area Code | 08 |
| Population (2021) | 28 |
| Median Age | 40 years |
| Median Household Income (Census 2021) | $2,374/week |
| Median Personal Income (Census 2021) | $1,024/week |
| Median Monthly Mortgage (Census 2021) | $3,000 |
| Average Household Size | 3.1 persons |
| Area | 40.3 km² |
| Population Density | 1/km² |
| Total Dwellings | 10 |
| Australian Citizens | 100.0% |
| Unemployment Rate | 0.0% |
| SEIFA IRSAD Decile | 8/10 (above average) |
| Latitude | -34.3352889 |
| Longitude | 116.1110881 |
| Distance from Perth | 266 km |
| Region (SA4) | Bunbury |
| Area (SA3) | Manjimup |
| Local Government | Manjimup |
| Federal Electorate | O'Connor |
| State Electorate | Warren-Blackwood (South West) |
| Time Zone | AWST (UTC+8), Australia/Perth (standard time) |
Age Profile
Show counts
| 0–14 years | 5 (17.9%) |
| 15–24 years | 4 (14.3%) |
| 25–44 years | 5 (17.9%) |
| 45–64 years | 13 (46.4%) |
| 65+ years | 4 (14.3%) |
Housing Tenure
SEIFA socio-economic index
Health Conditions (2021 Census)
| Cancer | 3 (10.7%) |
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 | 0 (0.0%) |
| 2 vehicles | 3 (100.0%) |
| 3+ vehicles | 0 (0.0%) |
Suburbs Near Diamond Tree
Same Postcode (6258)
More Diamond Tree 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.