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LEARN MORE ABOUT .idIn Cottesloe, the 'highest' quartile was the largest group in 2021, comprising 45% of households with income.
Households form the common 'economic unit' in our society. Household Income is one of the most important indicators of socio-economic status. With other data sources, such as Qualifications and Occupation, it helps to reveal Cottesloe's socio-economic status and economic opportunities. Household income levels are not comparable over time because of the influences of economic change such as wage level fluctuations and inflation. The income quartile method is a powerful and objective way of looking at income data and in particular, how it is changing.
A detailed explanation of how Household Income quartiles are calculated and interpreted is available in specific data notes.
Learn more about the characteristics of low-income households here.
'What is the total of all wages/salaries, government benefits, pensions, allowances and other income the person usually receives?'
Household income quartiles | |||||||
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Cottesloe - Households (Enumerated) | 2021 | 2011 | Change | ||||
Quartile group | Number | % | Western Australia % | Number | % | Western Australia % | 2011 to 2021 |
Lowest group | 3,143 | 20.3 | 25.0 | 2,813 | 22.0 | 25.0 | +330 |
Medium lowest | 2,709 | 17.5 | 25.0 | 2,441 | 19.1 | 25.0 | +267 |
Medium highest | 2,642 | 17.0 | 25.0 | 2,224 | 17.4 | 25.0 | +418 |
Highest group | 7,018 | 45.2 | 25.0 | 5,294 | 41.4 | 25.0 | +1,724 |
Total Households | 15,514 | 100.0 | 100.0 | 12,774 | 100.0 | 100.0 | +2,740 |
Household income - Quartile group dollar ranges | |||||||
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Calculated from income data for Western Australia | Weekly income by Census year | ||||||
Household income ranges | 2021 | 2016 | 2011 | 2006 | 2001 | 1996 | 1991 |
Lowest group | $0 to $888 | $0 to $790 | $0 to $693 | $0 to $565 | $0 to $416 | $0 to $348 | $0 to $305 |
Medium lowest | $889 to $1,804 | $791 to $1,582 | $694 to $1,405 | $566 to $1,062 | $417 to $783 | $349 to $651 | $306 to $556 |
Medium highest | $1,805 to $3,032 | $1,583 to $2,614 | $1,406 to $2,507 | $1,063 to $1,774 | $784 to $1,311 | $652 to $1,094 | $557 to $910 |
Highest group | $3,033 and over | $2,615 and over | $2,508 and over | $1,775 and over | $1,312 and over | $1,095 and over | $911 and over |
Income quartiles allow us to compare relative income-earning capabilities across time. Analysis of the distribution of households by income quartile in Cottesloe compared to Western Australia shows that there was greater proportion of households in the highest income quartile and a lesser proportion in the lowest income quartile.
The most significant change in Cottesloe between 2011 and 2021 was in the highest quartile which showed an increase of 1,724 households.
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