South Australia · Postcode 5451
Auburn postcode and suburb data
South Australia · Phone area code 08 · 101 km from Adelaide
Suburb snapshot
Auburn 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
Auburn vs the SA average and the national average, using population-weighted 2021 Census data.
| Metric | Auburn | SA avg | AU avg |
|---|---|---|---|
| Household income/wk | $1,218 -SA | $1,545 | $1,836 |
| Rent/wk | $230 -SA | $308 | $390 |
| Mortgage/month | $1,213 -SA | $1,558 | $1,958 |
| Median age | 54 | 45.0 | 45.0 |
| SEIFA decile | 5/10 ≈SA | 5.0/10 | 6.0/10 |
| Unemployment | 2.6% -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.
Auburn is a locality 101 km from Adelaide in South Australia, classified as inner regional by the ABS. The postcode is 5451. It falls within the Barossa - Yorke - Mid North region. The local government area is Clare and Gilbert Valleys.
According to the 2021 Census, Auburn has a population of 668 with a median age of 54. The median weekly household income is $1,218, below the SA average. The unemployment rate is 2.6%, lower than the SA average.
Housing in Auburn includes a median weekly rent of $230, median monthly mortgage repayment of $1,213, with 302 total dwellings. Housing costs in the area sit below the SA average. Owner-occupied dwellings (owned or mortgaged) make up 83.8% of housing.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Auburn scores in decile 5 out of 10, which is around the national average.
Auburn is served by Auburn Primary School.
Auburn is part of the Lower North statistical area in South Australia.
Auburn details
Location, Census, housing, SEIFA and geography fields used across this profile.
| Postcode | 5451 |
| State | South Australia (SA) |
| Phone Area Code | 08 |
| Population (2021) | 668 |
| Median Age | 54 years |
| Median Household Income (Census 2021) | $1,218/week |
| Median Personal Income (Census 2021) | $718/week |
| Median Weekly Rent (Census 2021) | $230 |
| Median Monthly Mortgage (Census 2021) | $1,213 |
| Average Household Size | 2.1 persons |
| Area | 119.9 km² |
| Population Density | 6/km² |
| Total Dwellings | 302 |
| Australian Citizens | 92.7% |
| Unemployment Rate | 2.6% |
| SEIFA IRSAD Decile | 5/10 (average) |
| Latitude | -34.027222 |
| Longitude | 138.685556 |
| Distance from Adelaide | 101 km |
| Region (SA4) | Barossa - Yorke - Mid North |
| Area (SA3) | Lower North |
| Local Government | Clare and Gilbert Valleys |
| Federal Electorate | Grey |
| State Electorate | Frome |
| Time Zone | ACST (UTC+9:30), Australia/Adelaide (standard time) |
Age Profile
Show counts
| 0–14 years | 92 (13.8%) |
| 15–24 years | 49 (7.3%) |
| 25–44 years | 109 (16.3%) |
| 45–64 years | 234 (35.0%) |
| 65+ years | 189 (28.3%) |
Housing Tenure
SEIFA socio-economic index
Health Conditions (2021 Census)
| Arthritis | 82 (12.3%) |
| Asthma | 67 (10.0%) |
| Diabetes | 43 (6.4%) |
| Heart Disease | 24 (3.6%) |
| Lung Condition | 21 (3.1%) |
| Cancer | 19 (2.8%) |
Long-term health conditions self-reported in the 2021 Census. Persons may report more than one condition.
Motor Vehicles per Dwelling
| No vehicle | 5 (1.7%) |
| 1 vehicle | 86 (28.5%) |
| 2 vehicles | 137 (45.4%) |
| 3+ vehicles | 74 (24.5%) |
Schools in Auburn
ACARA 2025 school profiles for schools located in Auburn. ICSEA is shown where ACARA publishes it.
Suburbs Near Auburn
Same Postcode (5451)
More Auburn 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.