Joslin Postcode
South Australia
Income, rent and SEIFA figures are from the ABS 2021 Census and are reported in 2021 dollars, not adjusted for subsequent inflation.
How Joslin Compares
Joslin vs the SA average and the national average (2021 Census, population-weighted).
| Metric | Joslin | SA avg | AU avg | Greater Adelaide |
|---|---|---|---|---|
| Household income/wk | $2,323 +SA | $1,545 | $1,836 | $1,620 |
| Rent/wk | $310 ≈SA | $308 | $390 | $329 |
| Mortgage/month | $2,461 +SA | $1,558 | $1,958 | $1,666 |
| Median age | 48 | 45.0 | 45.0 | 42.0 |
| SEIFA decile | 10/10 +SA | 5.0/10 | 6.0/10 | 7.0/10 |
| Unemployment | 4.0% -SA | 6.0% | 5.0% | 6.0% |
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.
Joslin is a coastal suburb of Adelaide in South Australia, with postcode 5070. It sits about 4 km from the Adelaide CBD, within the Norwood Payneham and St Peters local government area. The suburb footprint covers roughly 0.5 square kilometres.
According to the 2021 Census, Joslin has a population of 1,243 with a median age of 48. The median weekly household income is $2,323, above the SA average. The unemployment rate is 4.0%, lower than the SA average.
Housing in Joslin includes a median weekly rent of $310, median monthly mortgage repayment of $2,461, with 426 total dwellings. These housing costs sit above the SA average. Owner-occupied dwellings (owned or mortgaged) make up 79.8% of housing.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Joslin scores in decile 10 out of 10, which is well above the national average.
Joslin is part of the Norwood - Payneham - St Peters statistical area in South Australia.
Joslin Details
| Postcode | 5070 |
| State | South Australia (SA) |
| Phone Area Code | 08 |
| Population (2021) | 1,243 |
| Median Age | 48 years |
| Median Household Income (Census 2021) | $2,323/week |
| Median Personal Income (Census 2021) | $943/week |
| Median Weekly Rent (Census 2021) | $310 |
| Median Monthly Mortgage (Census 2021) | $2,461 |
| Average Household Size | 2.6 persons |
| Area | 0.5 km² |
| Population Density | 2491/km² |
| Total Dwellings | 426 |
| Australian Citizens | 89.8% |
| Unemployment Rate | 4.0% |
| SEIFA IRSAD Decile | 10/10 (well above average) |
| Latitude | -34.899 |
| Longitude | 138.625 |
| Distance from Adelaide | 4 km |
| Region (SA4) | Adelaide - Central and Hills |
| Area (SA3) | Norwood - Payneham - St Peters |
| Local Government | Norwood Payneham and St Peters |
| Federal Electorate | Sturt |
Age Profile
Show counts
| 0–14 years | 185 (14.9%) |
| 15–24 years | 137 (11.0%) |
| 25–44 years | 244 (19.6%) |
| 45–64 years | 322 (25.9%) |
| 65+ years | 359 (28.9%) |
Housing Tenure
SEIFA Socio-economic Index
Index of Relative Socio-economic Advantage and Disadvantage (IRSAD), decile 10 of 10. Higher deciles indicate more advantage.
Health Conditions (2021 Census)
| Arthritis | 114 (9.2%) |
| Asthma | 87 (7.0%) |
| Heart Disease | 65 (5.2%) |
| Dementia | 59 (4.7%) |
| Diabetes | 54 (4.3%) |
| Cancer | 46 (3.7%) |
| Lung Condition | 18 (1.4%) |
Long-term health conditions self-reported in the 2021 Census. Persons may report more than one condition.
Motor Vehicles per Dwelling
| No vehicle | 28 (6.4%) |
| 1 vehicle | 135 (31.0%) |
| 2 vehicles | 177 (40.6%) |
| 3+ vehicles | 96 (22.0%) |
Suburbs Near Joslin
Same Postcode (5070)
More Joslin 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.