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- Antechamber Bay
South Australia · Postcode 5222
Antechamber Bay postcode and suburb data
South Australia · Phone area code 08 · 108 km from Adelaide
Suburb snapshot
Antechamber Bay 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 Antechamber Bay ranks: household income sits in the bottom 10% of SA suburbs.
ABS Census 2021 · SEIFA 2021Detailed comparison table
Antechamber Bay vs the SA average and the national average, using population-weighted 2021 Census data.
| Metric | Antechamber Bay | SA avg | AU avg |
|---|---|---|---|
| Household income/wk | $725 -SA | $1,545 | $1,836 |
| Median age | 62 | 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.
Antechamber Bay is a remote community in South Australia, with postcode 5222. It lies roughly 108 km from Adelaide, classified by the ABS as remote Australia. The area is administered by Kangaroo Island.
According to the 2021 Census, Antechamber Bay has a population of 13 with a median age of 62. The median weekly household income is $725, below the SA average.
Housing in Antechamber Bay includes a 6 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, Antechamber Bay scores in decile 5 out of 10, which is around the national average.
Antechamber Bay is part of the Fleurieu - Kangaroo Island statistical area in South Australia.
Antechamber Bay details
Location, Census, housing, SEIFA and geography fields used across this profile.
| Postcode | 5222 |
| State | South Australia (SA) |
| Phone Area Code | 08 |
| Population (2021) | 13 |
| Median Age | 62 years |
| Median Household Income (Census 2021) | $725/week |
| Median Personal Income (Census 2021) | $474/week |
| Average Household Size | 2 persons |
| Area | 14.9 km² |
| Population Density | 1/km² |
| Total Dwellings | 6 |
| Australian Citizens | 100.0% |
| Unemployment Rate | 0.0% |
| SEIFA IRSAD Decile | 5/10 (average) |
| Latitude | -35.7983776 |
| Longitude | 138.0602008 |
| Distance from Adelaide | 108 km |
| Region (SA4) | South Australia - South East |
| Area (SA3) | Fleurieu - Kangaroo Island |
| Local Government | Kangaroo Island |
| Federal Electorate | Mayo |
| State Electorate | Mawson |
| 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 | 6 (46.2%) |
| 65+ years | 0 (0.0%) |
Housing Tenure
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 Antechamber Bay
Same Postcode (5222)
More Antechamber Bay 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.