South Australia · Postcode 5670
Mount Joy postcode and suburb data
South Australia · Phone area code 08 · 361 km from Adelaide
Suburb snapshot
Mount Joy 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.
Detailed comparison table
Mount Joy vs the SA average and the national average, using population-weighted 2021 Census data.
| Metric | Mount Joy | SA avg | AU avg |
|---|---|---|---|
| Household income/wk | $1,375 -SA | $1,545 | $1,836 |
| Median age | 35 | 45.0 | 45.0 |
| SEIFA decile | 4/10 ≈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.
Mount Joy is a very remote community in South Australia, with postcode 5670. It lies roughly 361 km from Adelaide, classified by the ABS as very remote Australia. The area is administered by Elliston.
According to the 2021 Census, Mount Joy has a population of 7 with a median age of 35. The median weekly household income is $1,375, below the SA average.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Mount Joy scores in decile 4 out of 10, which is below the national average.
Mount Joy is part of the Eyre Peninsula and South West statistical area in South Australia.
Mount Joy details
Location, Census, housing, SEIFA and geography fields used across this profile.
| Postcode | 5670 |
| State | South Australia (SA) |
| Phone Area Code | 08 |
| Population (2021) | 7 |
| Median Age | 35 years |
| Median Household Income (Census 2021) | $1,375/week |
| Median Personal Income (Census 2021) | $500/week |
| Average Household Size | 1 persons |
| Area | 214.1 km² |
| Population Density | 0/km² |
| Australian Citizens | 100.0% |
| Unemployment Rate | 0.0% |
| SEIFA IRSAD Decile | 4/10 (below average) |
| Latitude | -33.5214208 |
| Longitude | 135.0560969 |
| Distance from Adelaide | 361 km |
| Region (SA4) | South Australia - Outback |
| Area (SA3) | Eyre Peninsula and South West |
| Local Government | Elliston |
| 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 | 3 (42.9%) |
| 25–44 years | 0 (0.0%) |
| 45–64 years | 0 (0.0%) |
| 65+ years | 0 (0.0%) |
SEIFA socio-economic index
Suburbs Near Mount Joy
Same Postcode (5670)
More Mount Joy 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.