South Australia · Postcode 5603
Arno Bay postcode and suburb data
South Australia · Phone area code 08 · 218 km from Adelaide
Suburb snapshot
Arno 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 Arno Bay ranks: household income sits in the bottom 25% of SA suburbs; SEIFA decile 2 places it in the bottom 20% of Australia for socio-economic advantage.
ABS Census 2021 · SEIFA 2021Detailed comparison table
Arno Bay vs the SA average and the national average, using population-weighted 2021 Census data.
| Metric | Arno Bay | SA avg | AU avg |
|---|---|---|---|
| Household income/wk | $982 -SA | $1,545 | $1,836 |
| Rent/wk | $183 -SA | $308 | $390 |
| Mortgage/month | $867 -SA | $1,558 | $1,958 |
| Median age | 52 | 45.0 | 45.0 |
| SEIFA decile | 2/10 -SA | 5.0/10 | 6.0/10 |
| Unemployment | 5.7% ≈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.
Arno Bay is a remote community in South Australia, with postcode 5603. It lies roughly 218 km from Adelaide, classified by the ABS as remote Australia. The area is administered by Cleve.
According to the 2021 Census, Arno Bay has a population of 314 with a median age of 52. The median weekly household income is $982, below the SA average. The unemployment rate is 5.7%. The Indigenous population is 5 (1.6% of residents).
Housing in Arno Bay includes a median weekly rent of $183, median monthly mortgage repayment of $867, with 121 total dwellings. Housing costs in the area sit below the SA average. Owner-occupied dwellings (owned or mortgaged) make up 83.3% of housing.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Arno Bay scores in decile 2 out of 10, which is well below the national average.
Arno Bay is part of the Eyre Peninsula and South West statistical area in South Australia.
Arno Bay details
Location, Census, housing, SEIFA and geography fields used across this profile.
| Postcode | 5603 |
| State | South Australia (SA) |
| Phone Area Code | 08 |
| Population (2021) | 314 |
| Median Age | 52 years |
| Median Household Income (Census 2021) | $982/week |
| Median Personal Income (Census 2021) | $582/week |
| Median Weekly Rent (Census 2021) | $183 |
| Median Monthly Mortgage (Census 2021) | $867 |
| Average Household Size | 2.2 persons |
| Area | 233.6 km² |
| Population Density | 1/km² |
| Total Dwellings | 121 |
| Australian Citizens | 89.8% |
| Indigenous Population | 5 (1.6%) |
| Unemployment Rate | 5.7% |
| SEIFA IRSAD Decile | 2/10 (well below average) |
| Latitude | -33.9093366 |
| Longitude | 136.5689944 |
| Distance from Adelaide | 218 km |
| Region (SA4) | South Australia - Outback |
| Area (SA3) | Eyre Peninsula and South West |
| Local Government | Cleve |
| Federal Electorate | Grey |
| State Electorate | Flinders |
| Time Zone | ACST (UTC+9:30), Australia/Adelaide (standard time) |
Age Profile
Show counts
| 0–14 years | 51 (16.2%) |
| 15–24 years | 22 (7.0%) |
| 25–44 years | 57 (18.2%) |
| 45–64 years | 90 (28.7%) |
| 65+ years | 85 (27.1%) |
Housing Tenure
SEIFA socio-economic index
Health Conditions (2021 Census)
| Arthritis | 36 (11.5%) |
| Diabetes | 26 (8.3%) |
| Asthma | 24 (7.6%) |
| Heart Disease | 22 (7.0%) |
| Cancer | 13 (4.1%) |
| Lung Condition | 8 (2.5%) |
Long-term health conditions self-reported in the 2021 Census. Persons may report more than one condition.
Motor Vehicles per Dwelling
| No vehicle | 0 (0.0%) |
| 1 vehicle | 31 (26.1%) |
| 2 vehicles | 57 (47.9%) |
| 3+ vehicles | 31 (26.1%) |
Suburbs Near Arno Bay
Same Postcode (5603)
More Arno 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.