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Western Australia

Equivalised household income

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This topic has been updated with 2016 Census data for all areas. What's this?

Assuming all households were the same size, the 'highest' quartile was the largest income group in Western Australia in 2016.

While Household Income is a useful measure, it is difficult to tell if changes over time and between geographic areas are due to actual changes in income levels, or due to changes in household size and composition. For example, an increase in lower income households could be due to job losses in key economic sectors, or simply due to decreasing household size as adult children leave home.

Equivalised Household Income puts all households on an equal footing independent of household size and composition to enable a true comparison between areas and over time. It is an indicator of the income resource available to a household of standard size and is the best measure of the changing economic fortunes of households living in Western Australia.

A detailed explanation of how Equivalised Household Income quartiles are calculated and interpreted is available in specific data notes.

Derived from the Census question:

'What is the total of all wages/salaries, government benefits, pensions, allowances and other income the person usually receives?'

Family, group and lone person households

Equivalised household income quartiles
Western Australia - Households (Enumerated)20162011Change
Quartile groupNumber%Australia %Number%Australia %2011 to 2016
Lowest group48,9196.410.8149,25321.525.0-100,334
Medium lowest111,92514.622.1150,40521.725.0-38,480
Medium highest140,83918.423.2177,81525.625.0-36,976
Highest group464,91860.644.0216,84531.225.0+248,073

Source: Australian Bureau of Statistics, Census of Population and Housing 2011 and 2016. Compiled and presented by .id , the population experts.

Equivalised household income - Quartile group dollar ranges
Calculated from income data for New South Wales Weekly income by Census year
Equivalised household income ranges
2016
2011
2006
2001
Lowest group $0 to $497 $0 to $432 $0 to $353 $0 to $282
Medium lowest $498 to $877 $433 to $763 $354 to $607 $283 to $482
Medium highest $878 to $1,420 $764 to $1,230 $608 to $982 $483 to $773
Highest group $1,421 and over $1,231 and over $983 and over $774 and over

Equivalised household income quartiles, 2016
Equivalised household income quartiles, 2016 Highest group, Australia: 44.0% Medium highest, Australia: 23.2% Medium lowest, Australia: 22.1% Lowest group, Australia: 10.8% Highest group, Western Australia: 60.6% Medium highest, Western Australia: 18.4% Medium lowest, Western Australia: 14.6% Lowest group, Western Australia: 6.4%
Source: Australian Bureau of Statistics, Census of Population and Housing, 2016 (Enumerated data)
Compiled and presented in profile.id by .id, the population experts.
Change in equivalised household income quartiles, 2011 to 2016
Change in equivalised household income quartiles, 2011 to 2016 Highest group, Western Australia: +248,073 Medium highest, Western Australia: -36,976 Medium lowest, Western Australia: -38,480 Lowest group, Western Australia: -100,334
Source: Australian Bureau of Statistics, Census of Population and Housing, 2011 and 2016 (Enumerated data)
Compiled and presented in profile.id by .id, the population experts.

Dominant groups

Equivalised income quartiles allow us to compare relative income-earning capabilities across time. Because the data is equivalised, households of different size and composition are placed on an equal footing.

Analysis of the distribution of households by income quartile in Western Australia compared to Australia shows that there was a greater proportion of households in the highest equivalised income quartile, and a lesser proportion in the lowest equivalised income quartile.

Emerging groups

The most significant change in Western Australia between 2011 and 2016 was in the highest quartile which showed an increase of 248,073 households.

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