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Tonsley 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 Tonsley Compares
Tonsley vs the SA average and the national average (2021 Census, population-weighted).
| Metric | Tonsley | SA avg | AU avg | Greater Adelaide |
|---|---|---|---|---|
| Household income/wk | $1,470 ≈SA | $1,545 | $1,836 | $1,620 |
| Rent/wk | $330 ≈SA | $308 | $390 | $329 |
| Mortgage/month | $1,500 ≈SA | $1,558 | $1,958 | $1,666 |
| Median age | 31 | 45.0 | 45.0 | 42.0 |
| SEIFA decile | 4/10 ≈SA | 5.0/10 | 6.0/10 | 7.0/10 |
| Unemployment | 6.8% +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.
Tonsley is a coastal suburb of Adelaide in South Australia, with postcode 5042. It sits about 10 km from the Adelaide CBD, within the Marion local government area. The suburb footprint covers roughly 1.0 square kilometres.
According to the 2021 Census, Tonsley has a population of 743 with a median age of 31. The median weekly household income is $1,470, close to the SA average. The unemployment rate is 6.8%, higher than the SA average. The Indigenous population is 16 (2.2% of residents).
Housing in Tonsley includes a median weekly rent of $330, median monthly mortgage repayment of $1,500, with 343 total dwellings. Rental properties account for 43.8% of dwellings.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Tonsley scores in decile 4 out of 10, which is below the national average.
Tonsley is part of the Mitcham statistical area in South Australia.
Tonsley Details
| Postcode | 5042 |
| State | South Australia (SA) |
| Phone Area Code | 08 |
| Population (2021) | 743 |
| Median Age | 31 years |
| Median Household Income (Census 2021) | $1,470/week |
| Median Personal Income (Census 2021) | $788/week |
| Median Weekly Rent (Census 2021) | $330 |
| Median Monthly Mortgage (Census 2021) | $1,500 |
| Average Household Size | 2 persons |
| Area | 1.0 km² |
| Population Density | 753/km² |
| Total Dwellings | 343 |
| Australian Citizens | 72.7% |
| Indigenous Population | 16 (2.2%) |
| Unemployment Rate | 6.8% |
| SEIFA IRSAD Decile | 4/10 (below average) |
| Latitude | -35.0146 |
| Longitude | 138.571 |
| Distance from Adelaide | 10 km |
| Region (SA4) | Adelaide - South |
| Area (SA3) | Mitcham |
| Local Government | Marion |
| Federal Electorate | Boothby |
Age Profile
Show counts
| 0–14 years | 76 (10.2%) |
| 15–24 years | 140 (18.8%) |
| 25–44 years | 327 (44.0%) |
| 45–64 years | 123 (16.6%) |
| 65+ years | 82 (11.0%) |
Housing Tenure
SEIFA Socio-economic Index
Index of Relative Socio-economic Advantage and Disadvantage (IRSAD), decile 4 of 10. Higher deciles indicate more advantage.
Health Conditions (2021 Census)
| Asthma | 66 (8.9%) |
| Arthritis | 49 (6.6%) |
| Diabetes | 31 (4.2%) |
| Heart Disease | 16 (2.2%) |
| Lung Condition | 13 (1.7%) |
| Cancer | 10 (1.3%) |
Long-term health conditions self-reported in the 2021 Census. Persons may report more than one condition.
Motor Vehicles per Dwelling
| No vehicle | 35 (10.4%) |
| 1 vehicle | 167 (49.6%) |
| 2 vehicles | 104 (30.9%) |
| 3+ vehicles | 31 (9.2%) |
Suburbs Near Tonsley
Same Postcode (5042)
More Tonsley 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.