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SEIFA

Socio-Economic Indexes for Areas (SEIFA) are summary measures of the social and economic conditions of geographic areas across Australia. Using data from the five–yearly Census of Population and Housing, the Australian Bureau of Statistics (ABS) has produced four different SEIFA index measures, which concentrate on different aspects of social and economic conditions in statistical areas level 1 (SA1s) and other levels of geography for 2011, and collection districts (CDs) for 2006 and prior. All of the indexes have been constructed to ensure that areas with relative disadvantage have low index values.

2011 SEIFA

Queensland Government Statistician's Office has developed some SEIFA tables for SA1, SA2, statistical local area (SLA) and local government area (LGA) which provide a breakdown of population within each quintile. Quintiles can be calculated a number of ways. Two common methods are "weighted" and "equal counts". The weighted method divides the data into 5 even groups (for quintiles), where each group has the same population (available for download based on rankings within Queensland, below). The equal count method divides the data into even groups where each group has the same number of regions. Equal count deciles can be downloaded from the ABS website. The SEIFA indexes are also available free of charge on the ABS website. The indexes based on 2011 census data are available for Australia and for all states and territories. For a more detailed explanation of SEIFA, see the ABS SEIFA 2011 technical paper.

The ABS has compiled a fact sheet describing the different SEIFA area (equal count) and population quantile methods, which is also available for download, below.

2011 SEIFA Quintiles (population weighted) Type File Size
Advantage/Disadvantage - Statistical Area Level 1 (SA1) xls (1,125 kB)
Advantage/Disadvantage - Statistical Area Level 2 (SA2) xls (135 kB)
Advantage/Disadvantage - Local government areas (2014) xls (45 kB)
Advantage/Disadvantage - Statistical local areas xls (125 kB)
Disadvantage - Statistical Area Level 1 (SA1) xls (1,135 kB)
Disadvantage - Statistical Area Level 2 (SA2) xls (140 kB)
Disadvantage - Local government areas (2014) xls (40 kB)
Disadvantage - Statistical local areas xls (130 kB)
SEIFA: Understanding Area & Population Quantiles - Fact sheet pdf (25 kB)

If you need help with any of the file types above, please see our help page.

2006 SEIFA

Queensland Government Statistician's Office also developed some SEIFA 2006 tables for SLA and LGA which provide a breakdown of population within each quintile. The SEIFA indexes are available free of charge on the ABS website. The indexes based on 2006 census data are available for Australia and for all states and territories. For a more detailed explanation of SEIFA, see the ABS SEIFA 2006 information paper and the ABS SEIFA 2006 technical paper.

2011 SEIFA Quintiles (population weighted) Type File Size
Quintile equal count - Local government areas csv (15 kB)
Quintile equal count - Statistical local areas csv (40 kB)
Quintile population weighted - Local government areas csv (15 kB)
Quintile population weighted - Statistical local areas csv (40 kB)
Understanding Area & Population Quantiles - Fact sheet pdf (25 kB)

If you need help with any of the file types above, please see our help page.

2001 SEIFA

Indexes based on 2001 census data are also available on the ABS website for 2001.

2011 SEIFA Quintiles (population weighted) PDF PDF Size
A Summary of Socio-Economic Indexes for Areas (2001) pdf (55 kB)

If you need help with any of the file types above, please see our help page.

2001 Indigenous/non-Indigenous SEIFA

On behalf of Queensland Government, the ABS has developed the following index of socio-economic advantage/disadvantage, stratified by Indigenous status. This index can be used to compare the advantage and disadvantage experienced by the Indigenous and non-Indigenous sub-populations at the statistical local area level.

The ABS does not support the use of this index as a measure of Indigenous disadvantage. This index has been created for a specific purpose, to test a theory that Indigenous disadvantage in an area is being masked by non-Indigenous disadvantage. It is not an Indigenous disadvantage index.

This index uses the weights for the Indigenous and non-Indigenous population and applies these to the Indigenous population. Using the weights calculated for all persons may underestimate disadvantage for Indigenous persons, because the non-Indigenous disadvantage is masking the greater Indigenous disadvantage in the calculation of weights for each variable (eg, low income, unemployment, etc).

2011 SEIFA Quintiles (population weighted) Type File Size
Final report pdf (4,065 kB)
Statistical local areas csv (95 kB)

If you need help with any of the file types above, please see our help page.



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Last reviewed 7 November 2016