CensusAtlas

Indicator

Socio-economic advantage (IRSAD decile)

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.

About this measure

Source: Socio-Economic Indexes for Areas (SEIFA) (Australian Bureau of Statistics), 2021, CC BY 4.0. Explore the map below for local values.

Explore on the map

See how irsad decile varies across Australia.

By block (sa1) By statistical area 2 (sa2) By postcode By council (lga)

Highest areas

SA2 areas with the highest irsad decile (latest data).

  1. Googong 10
  2. Thirroul - Austinmer - Coalcliff 10
  3. Baulkham Hills (West) - Bella Vista 10
  4. Glenhaven 10
  5. West Pennant Hills 10
  6. Castle Hill - Central 10

Related indicators

Socio-economic disadvantage (IRSD decile) View → Economic resources (IER decile) View → Education & occupation (IEO decile) View → Socio-economic advantage (IRSAD score) View → Population estimate View → Population growth since 2021 View → Businesses View → Dwellings approved View →

Frequently asked questions

How is Socio-economic advantage (IRSAD decile) measured?

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. It is calculated as a percentage of the relevant population or dwellings, so it can be compared fairly between large and small areas.

How does Socio-economic advantage (IRSAD decile) vary across Australia?

Across the 2,353 SA2 areas with data, Socio-economic advantage (IRSAD decile) ranges from 1 to 10, with a typical (median) area at 6.

Where can I see Socio-economic advantage (IRSAD decile) for my area?

Use the interactive map to compare Socio-economic advantage (IRSAD decile) down to block (sa1) and statistical area 2 (sa2) level, or search any suburb, postcode or council area to see its value in context against state and national figures.

Cite this page

Australian Bureau of Statistics. (2021). Socio-economic advantage (IRSAD decile) [Socio-Economic Indexes for Areas (SEIFA)]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/indicator/seifa-irsad-decile