Willunga · Statistical Area 2 (SA2)
How well-off the area is, how fast its population is growing, and the businesses and new homes here.
High levels of financial security shape daily life in Willunga, where residents have more money and resources than most people across the country. With an overall advantage score of 1,026, the area ranks higher than about 62% of similar places.
All statistical area 2 (sa2) areas, 2021. The marker is Willunga — higher than 64% of areas.
| Willunga | 7 |
|---|---|
| 5172, SA | 8 |
SEIFA indexes ranking relative advantage and disadvantage.
Residents here have strong access to money and resources, scoring 9 out of 10, which is higher than about 90% of similar areas. This is supported by a well-qualified workforce, with education and job skills ranking higher than about 70% of other areas.
7
Higher than 64% of statistical area 2 (sa2) areas.
ABS Index of Relative Socio-economic Advantage and Disadvantage, 2021, as a national decile: 1 = among the 10% most disadvantaged areas in Australia, 10 = among the 10% most advantaged. IRSAD summarises both advantage and disadvantage, so a high score reflects relatively many high-income, well-educated households and few low-income, low-skill ones.
8
Higher than 71% of statistical area 2 (sa2) areas.
ABS Index of Relative Socio-economic Disadvantage, 2021, as a national decile: 1 = among the 10% most disadvantaged areas in Australia, 10 = among the least disadvantaged. IRSD focuses on disadvantage alone (low income, low education, unemployment, unskilled occupations), so a higher decile means relatively less disadvantage.
9
Higher than 86% of statistical area 2 (sa2) areas.
ABS Index of Economic Resources, 2021, as a national decile: 1 = among the 10% lowest areas for economic resources in Australia, 10 = among the highest. IER reflects the income, housing costs, dwelling size and assets of households, so a higher decile means relatively greater economic resources.
7
Higher than 64% of statistical area 2 (sa2) areas.
ABS Index of Education and Occupation, 2021, as a national decile: 1 = among the 10% lowest areas for education and occupation in Australia, 10 = among the highest. IEO reflects residents' qualifications and the skill level of their jobs, so a higher decile means a more highly educated and skilled workforce.
1,026
Higher than 62% of statistical area 2 (sa2) areas.
ABS Index of Relative Socio-economic Advantage and Disadvantage, 2021, as a raw index score (standardised so the Australian average is about 1000). Higher scores indicate relatively greater advantage; lower scores greater disadvantage.
Annual population estimates and change since the census.
The population has grown by 4.4% since 2021, which is around the middle for its level, though this is a little below the South Australian figure of 5.6%.
3,784
Lower than 86% of statistical area 2 (sa2) areas.
Estimated resident population (ABS), 2025.
4.4%
Lower than 52% of statistical area 2 (sa2) areas.
Population growth since the 2021 Census, from ABS annual estimates.
Operating businesses and dwellings approved.
There are 478 businesses in the area, which is a smaller number than about 76% of similar places.
478
Lower than 76% of statistical area 2 (sa2) areas.
Operating businesses (ABS Counts of Australian Businesses), June 2025.
Australian Bureau of Statistics. (2021). Economy & Advantage in Willunga [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/sa2/403041088/willunga/topic/economy-advantage
