South Australia · Postcode 5671
Calca postcode and suburb data
South Australia · Phone area code 08 · 452 km from Adelaide
Suburb snapshot
Calca 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 Calca ranks: household income sits in the bottom 25% of SA suburbs; rents sit in the cheapest 10% in SA.
ABS Census 2021 · SEIFA 2021Detailed comparison table
Calca vs the SA average and the national average, using population-weighted 2021 Census data.
| Metric | Calca | SA avg | AU avg |
|---|---|---|---|
| Household income/wk | $1,124 -SA | $1,545 | $1,836 |
| Median age | 42 | 45.0 | 45.0 |
| SEIFA decile | 5/10 ≈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.
Calca is a very remote community in South Australia, with postcode 5671. It lies roughly 452 km from Adelaide, classified by the ABS as very remote Australia. The area is administered by Streaky Bay.
According to the 2021 Census, Calca has a population of 13 with a median age of 42. The median weekly household income is $1,124, below the SA average.
Housing in Calca includes a 3 total dwellings. Housing costs in the area sit below the SA average.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Calca scores in decile 5 out of 10, which is around the national average.
Calca is part of the Eyre Peninsula and South West statistical area in South Australia.
Calca details
Location, Census, housing, SEIFA and geography fields used across this profile.
| Postcode | 5671 |
| State | South Australia (SA) |
| Phone Area Code | 08 |
| Population (2021) | 13 |
| Median Age | 42 years |
| Median Household Income (Census 2021) | $1,124/week |
| Median Personal Income (Census 2021) | $249/week |
| Average Household Size | 2 persons |
| Area | 120.3 km² |
| Population Density | 0/km² |
| Total Dwellings | 3 |
| Australian Citizens | 38.5% |
| Unemployment Rate | 0.0% |
| SEIFA IRSAD Decile | 5/10 (average) |
| Latitude | -33.0246727 |
| Longitude | 134.2671301 |
| Distance from Adelaide | 452 km |
| Region (SA4) | South Australia - Outback |
| Area (SA3) | Eyre Peninsula and South West |
| Local Government | Streaky Bay |
| Federal Electorate | Grey |
| State Electorate | Flinders |
| 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 | 11 (84.6%) |
| 45–64 years | 0 (0.0%) |
| 65+ years | 0 (0.0%) |
SEIFA socio-economic index
Motor Vehicles per Dwelling
| No vehicle | 0 (0.0%) |
| 1 vehicle | 0 (0.0%) |
| 2 vehicles | 0 (0.0%) |
| 3+ vehicles | 3 (100.0%) |
Suburbs Near Calca
Same Postcode (5671)
More Calca 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.