Rocky Plain Postcode

South Australia

Outer Regional Bottom 20% SEIFA

5381

Postcode for Rocky Plain, SA
Phone area code: 08 · 113 km from Adelaide · Pop. 8

Population

Median Age

$225

Household Income/wk

$100

Median Rent/wk

1/10

SEIFA Advantage

37.2

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 Rocky Plain ranks: household income sits in the bottom 10% of SA suburbs; SEIFA decile 1 places it in the bottom 20% of Australia for socio-economic advantage.

How Rocky Plain Compares

Rocky Plain vs the SA average and the national average (2021 Census, population-weighted).

Metric	Rocky Plain	SA avg	AU avg
Household income/wk	$225 -SA	$1,545	$1,836
Rent/wk	$100 -SA	$308	$390
Median age	60	45.0	45.0
SEIFA decile	1/10 -SA	5.0/10	6.0/10
Unemployment	0.0% -SA	6.0%	5.0%

Green pill = at least 10% above the SA average; red = at least 10% below; grey = within 10%. For unemployment, colour polarity is inverted: lower is better.

Rocky Plain is a locality 113 km from Adelaide in South Australia, classified as outer regional by the ABS. The postcode is 5381. It falls within the Barossa - Yorke - Mid North region. The local government area is Goyder.

According to the 2021 Census, Rocky Plain has a population of 8 with a median age of 60. The median weekly household income is $225, below the SA average.

Housing in Rocky Plain includes a median weekly rent of $100, 4 total dwellings. Housing costs in the area sit below the SA average. Owner-occupied dwellings (owned or mortgaged) make up 100.0% of housing.

On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Rocky Plain scores in decile 1 out of 10, which is well below the national average.

Rocky Plain is part of the Lower North statistical area in South Australia.

Rocky Plain Details

Postcode	5381
State	South Australia (SA)
Phone Area Code	08
Population (2021)	8
Median Age	60 years
Median Household Income (Census 2021)	$225/week
Median Personal Income (Census 2021)	$187/week
Median Weekly Rent (Census 2021)	$100
Average Household Size	2 persons
Area	37.2 km²
Population Density	0/km²
Total Dwellings	4
Australian Citizens	125.0%
Unemployment Rate	0.0%
SEIFA IRSAD Decile	1/10 (well below average)
Latitude	-34.0226595
Longitude	139.1526082
Distance from Adelaide	113 km
Region (SA4)	Barossa - Yorke - Mid North
Area (SA3)	Lower North
Local Government	Goyder
Federal Electorate	Grey

Age Profile

37.5%

50.0%

0–14 (0.0%) 15–24 (0.0%) 25–44 (0.0%) 45–64 (37.5%) 65+ (50.0%)

Show counts

0–14 years	0 (0.0%)
15–24 years	0 (0.0%)
25–44 years	0 (0.0%)
45–64 years	3 (37.5%)
65+ years	4 (50.0%)

Housing Tenure

100.0%

Owned outright (100.0%) Mortgaged (0.0%) Rented (0.0%)

SEIFA Socio-economic Index

Index of Relative Socio-economic Advantage and Disadvantage (IRSAD), decile 1 of 10. Higher deciles indicate more advantage.

Motor Vehicles per Dwelling

No vehicle	0 (0.0%)
1 vehicle	5 (50.0%)
2 vehicles	0 (0.0%)
3+ vehicles	5 (50.0%)

Suburbs Near Rocky Plain

Australia Plains 7.3 km Robertstown 7.5 km Geranium Plains 7.7 km Bower 8.9 km Point Pass 10.1 km Brady Creek 13.3 km Bright 13.6 km Peep Hill 14.3 km Ngapala 15.2 km Sutherlands 16.3 km Eudunda 17.2 km Julia 17.5 km

Same Postcode (5381)

Brady Creek Bright Emu Downs Geranium Plains Halleluja Hills Hallelujah Hills Robertstown Worlds End Worlds End Creek

More Rocky Plain Data

Goyder LGA 52 suburbs, 11 postcodes, 4,087 people Climate & Weather Closest station: Clare (54.5 km) NDIS Providers NDIS data for Goyder LGA

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.