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In 2021, The Hills Shire had the lowest level of Disadvantage in the National Growth Areas Alliance, with a SEIFA index score of 1,098.1.

The National Growth Areas Alliance Socio-Economic Indexes for Areas (SEIFA) measure the relative level of socio-economic disadvantage and/or advantage based on a range of Census characteristics. Two of the SEIFA indexes: the Index of Relative Socio-Economic Disadvantage (IRSD) and the Index of Relative Socio-Economic Advantage and Disadvantage (IRSAD) can be selected below.

Index of Relative Socio-Economic Disadvantage (IRSD)

This index contains only disadvantage indicators (e.g. unemployment, low incomes or education levels, single parent families, low skilled occupations, poor English proficiency), so is best used to distinguish between disadvantaged areas, but doesn’t differentiate between those areas which are highly advantaged, and those just lacking a lot of disadvantage (with population close to the middle). This index is most commonly used for funding allocations and advocacy, because it highlights the areas of most need.

Index of Relative Socio-Economic Advantage and Disadvantage (IRSAD)

This index contains indicators of disadvantage as well as additional indicators of advantage (e.g. professional occupations, high income, higher education levels, high rent, large dwellings), Characteristics are also weighted differently than the IRSD, so areas do score differently on either measure. Often the IRSAD index will show a more "spread out" distribution with a greater range of scores from very high to very low, due to its ability to measure advantage above the average level.

SEIFA indexes are a good place to start to get a general view of the relative level of disadvantage in one area compared to others, but it is important to also look at these underlying characteristics as they can differ markedly between areas with similar SEIFA scores and shed light on the type of disadvantage being experienced.

A higher score on the index means a lower level of disadvantage, or (in the case of IRSAD only) a higher level of advantage. A lower score on the index means a higher level of disadvantage on both indexes, and a lack of advantage on the IRSAD.

The percentile column indicates the approximate position of this small area in a ranked list of Australia’s suburbs and localities in 2021. It's meant to give a broad indication of where the area sits within the whole nation. A higher number indicates a higher socio-economic status. For instance, a percentile of 72 indicates that approximately 72% of Australia’s suburbs have a SEIFA index lower than this area (more disadvantaged), while 28% are higher. This applies a comparison to suburbs even when the index concerned doesn’t relate to a suburb.

Index of Relative Socio-economic Disadvantage
National Growth Areas Alliance's small areas and benchmark areas
Area2021 indexPercentile
The Hills Shire 1,098.196
Camden Council 1,044.869
Wollondilly Shire 1,041.067
District Council of Mount Barker 1,037.064
City of Cockburn 1,033.362
Shire of Serpentine-Jarrahdale 1,028.259
Redland City 1,023.956
Shire of Cardinia 1,021.054
Greater Perth1,020.054
Greater Melbourne1,018.052
Western Australia1,011.048
Victoria1,010.048
Greater Sydney1,010.048
Greater Brisbane1,008.046
City of Wyndham 1,005.545
City of Wanneroo 1,005.345
Australia1,001.242
New South Wales1,000.042
Shire of Mitchell 999.542
Growth LGAs in NSW995.740
Queensland995.039
City of Swan 994.839
City of Casey 994.739
Growth LGAs in WA994.539
Greater Adelaide992.038
Moreton Bay Region 991.837
Penrith City 991.337
City of Armadale 990.036
City of Whittlesea 989.636
City of Rockingham 989.336
Growth LGAs in Victoria988.336
Blacktown City 987.335
National Growth Areas Alliance (NGAA)986.434
City of Melton 985.234
South Australia982.032
Growth LGAs in Queensland976.029
City of Gosnells 974.629
City of Kwinana 970.527
City of Mandurah 959.122
City of Ipswich 957.922
Campbelltown City 947.519
Logan City 944.018
City of Hume 940.817
Liverpool City 930.815
Growth LGAs in SA904.710
City of Playford 852.45
Source: Australian Bureau of Statistics, Census of Population and Housing 2021. Compiled and presented in profile.id by .id (informed decisions).
Please refer to specific data notes for more information

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