South Australia · Postcode 5454
Mayfield postcode and suburb data
South Australia · Phone area code 08 · 143 km from Adelaide
Suburb snapshot
Mayfield 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 Mayfield ranks: household income is in the top 10% of SA suburbs; rents sit in the cheapest 10% in SA.
ABS Census 2021 · SEIFA 2021Detailed comparison table
Mayfield vs the SA average and the national average, using population-weighted 2021 Census data.
| Metric | Mayfield | SA avg | AU avg |
|---|---|---|---|
| Household income/wk | $3,750 +SA | $1,545 | $1,836 |
| Median age | 63 | 45.0 | 45.0 |
| SEIFA decile | 6/10 ≈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.
Mayfield is a locality 143 km from Adelaide in South Australia, classified as outer regional by the ABS. The postcode is 5454. It falls within the Barossa - Yorke - Mid North region. The local government area is Northern Areas.
According to the 2021 Census, Mayfield has a population of 4 with a median age of 63. The median weekly household income is $3,750, above the SA average.
On the SEIFA Index of Relative Socio-economic Advantage and Disadvantage, Mayfield scores in decile 6 out of 10, which is around the national average.
Mayfield is part of the Mid North statistical area in South Australia.
Mayfield details
Location, Census, housing, SEIFA and geography fields used across this profile.
| Postcode | 5454 |
| State | South Australia (SA) |
| Phone Area Code | 08 |
| Population (2021) | 4 |
| Median Age | 63 years |
| Median Household Income (Census 2021) | $3,750/week |
| Median Personal Income (Census 2021) | $1,875/week |
| Average Household Size | 2 persons |
| Area | 60.1 km² |
| Population Density | 0/km² |
| Australian Citizens | 100.0% |
| Unemployment Rate | 0.0% |
| SEIFA IRSAD Decile | 6/10 (average) |
| Latitude | -33.638958 |
| Longitude | 138.6071903 |
| Distance from Adelaide | 143 km |
| Region (SA4) | Barossa - Yorke - Mid North |
| Area (SA3) | Mid North |
| Local Government | Northern Areas |
| Federal Electorate | Grey |
| State Electorate | Frome |
| Time Zone | ACST (UTC+9:30), Australia/Adelaide (standard time) |
Age Profile
Show counts
| 0–14 years | 0 (0.0%) |
| 15–24 years | 0 (0.0%) |
| 25–44 years | 0 (0.0%) |
| 45–64 years | 0 (0.0%) |
| 65+ years | 0 (0.0%) |
SEIFA socio-economic index
Suburbs Near Mayfield
Same Postcode (5454)
More Mayfield 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.