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City of KalamundaCommunity profile

North West Ward

Equivalised household income

Assuming all households were the same size, the 'medium highest' quartile was the largest income group in North West Ward in 2021.

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 North West Ward.

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

Learn more about the characteristics of low-income households here.

Q:

Derived from the Census question:

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

Equivalised household income quartiles
North West Ward - Households (Enumerated)20212016Change
Quartile groupNumber%City of Kalamunda %Number%City of Kalamunda %2016 to 2021
Lowest group1,24222.823.81,08222.222.5+160
Medium lowest1,47627.126.81,32527.227.0+151
Medium highest1,55828.626.81,46530.027.4+93
Highest group1,16321.422.61,00720.623.2+156
Total Households5,441100.0100.04,881100.0100.0+559
Source: Australian Bureau of Statistics, Census of Population and Housing 2016 and 2021. Compiled and presented by .id (informed decisions).
Please refer to specific data notes for more information
Equivalised household income - Quartile group dollar ranges
Calculated from income data for Western AustraliaWeekly income by Census year
Equivalised household income ranges20212016201120062001
Lowest group$0 to $616$0 to $538$0 to $485$0 to $374$0 to $285
Medium lowest$617 to $1,121$539 to $971$486 to $878$375 to $654$286 to $487
Medium highest$1,122 to $1,774$972 to $1,559$879 to $1,383$655 to $1,039$488 to $766
Highest group$1,775 and over$1,560 and over$1,384 and over$1,040 and over$767 and over

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 North West Ward compared to the City of Kalamunda shows that there was a lesser proportion of households in the highest equivalised income quartile, as well as a lesser proportion in the lowest equivalised income quartile.

Emerging groups

The most significant change in North West Ward between 2016 and 2021 was in the lowest quartile which showed an increase of 160 households.

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