Western Australia · Postcode 6355
Dunn Rock postcode and suburb data
Western Australia · Phone area code 08 · 379 km from Perth
Suburb snapshot
Dunn Rock 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 Dunn Rock ranks: household income sits in the bottom 10% of WA suburbs; rents sit in the cheapest 10% in WA; SEIFA decile 9 puts it in the top 20% of Australia for socio-economic advantage.
ABS Census 2021 · SEIFA 2021Detailed comparison table
Dunn Rock vs the WA average and the national average, using population-weighted 2021 Census data.
| Metric | Dunn Rock | WA avg | AU avg |
|---|---|---|---|
| Median age | 34 | 43.0 | 45.0 |
| SEIFA decile | 9/10 +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.
Dunn Rock is a very remote community in Western Australia, with postcode 6355. It lies roughly 379 km from Perth, classified by the ABS as very remote Australia. The area is administered by Lake Grace.
According to the 2021 Census, Dunn Rock has a population of 11 with a median age of 34.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Dunn Rock scores in decile 9 out of 10, which is well above the national average.
Dunn Rock is part of the Wheat Belt - South statistical area in Western Australia.
Dunn Rock details
Location, Census, housing, SEIFA and geography fields used across this profile.
| Postcode | 6355 |
| State | Western Australia (WA) |
| Phone Area Code | 08 |
| Population (2021) | 11 |
| Median Age | 34 years |
| Average Household Size | 4.5 persons |
| Area | 566.2 km² |
| Population Density | 0/km² |
| Australian Citizens | 100.0% |
| Unemployment Rate | 0.0% |
| SEIFA IRSAD Decile | 9/10 (well above average) |
| Latitude | -33.3576739 |
| Longitude | 119.5535794 |
| Distance from Perth | 379 km |
| Region (SA4) | Western Australia - Wheat Belt |
| Area (SA3) | Wheat Belt - South |
| Local Government | Lake Grace |
| Federal Electorate | O'Connor |
| State Electorate | Roe (Agricultural) |
| Time Zone | AWST (UTC+8), Australia/Perth (standard time) |
Age Profile
Show counts
| 0–14 years | 4 (36.4%) |
| 15–24 years | 0 (0.0%) |
| 25–44 years | 5 (45.5%) |
| 45–64 years | 3 (27.3%) |
| 65+ years | 0 (0.0%) |
SEIFA socio-economic index
Suburbs Near Dunn Rock
Same Postcode (6355)
More Dunn Rock 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.