Dunn Rock Postcode

Western Australia

Very Remote Top 10% SEIFA

6355

Postcode for Dunn Rock, WA
Phone area code: 08 · 379 km from Perth · Pop. 11

Population

Median Age

$N/A

Household Income/wk

$N/A

Median Rent/wk

9/10

SEIFA Advantage

566.2

Area (km²)

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.

How Dunn Rock Compares

Dunn Rock vs the WA average and the national average (2021 Census, population-weighted).

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

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

Age Profile

36.4%

45.5%

27.3%

0–14 (36.4%) 15–24 (0.0%) 25–44 (45.5%) 45–64 (27.3%) 65+ (0.0%)

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

Index of Relative Socio-economic Advantage and Disadvantage (IRSAD), decile 9 of 10. Higher deciles indicate more advantage.

Suburbs Near Dunn Rock

Magenta 0.0 km West River 16.8 km Mount Madden 28.0 km Lake King 32.6 km East Newdegate 39.3 km Fitzgerald 44.2 km Lake Camm 44.8 km Hatter Hill 47.2 km South Newdegate 51.5 km Ravensthorpe 52.1 km West Fitzgerald 53.8 km Newdegate 57.4 km

Same Postcode (6355)

East Newdegate Holt Rock Lake Biddy Lake Camm Little Italy Magenta Mount Sheridan Newdegate South Newdegate Varley

More Dunn Rock Data

Lake Grace LGA 21 suburbs, 3 postcodes, 1,261 people Climate & Weather Closest station: Katanning (188.5 km)

Page last reviewed June 2026. Data sources: Australian Bureau of Statistics 2021 Census (CC BY 4.0), SEIFA 2021 IRSAD, ACARA school profiles 2025. How this data is sourced.