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South Australia · Postcode 5381
Rocky Plain postcode and suburb data
South Australia · Phone area code 08 · 113 km from Adelaide
Suburb snapshot
Rocky Plain at a glance vs SA
Fast facts and benchmark bars show the suburb's key postcode, Census, SEIFA, school and LGA signals in context.
Quick facts
Benchmarks against SA
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.
ABS Census 2021 · SEIFA 2021Detailed comparison table
Rocky Plain vs the SA average and the national average, using population-weighted 2021 Census data.
| 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
Location, Census, housing, SEIFA and geography fields used across this profile.
| 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 |
| State Electorate | Frome |
| Time Zone | ACST (UTC+9:30), Australia/Adelaide (standard time) |
Age Profile
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
SEIFA socio-economic index
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
Same Postcode (5381)
More Rocky Plain 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.