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Happy Valley

Equivalised household income

Assuming all households were the same size, the 'medium highest' quartile was the largest income group in Happy Valley in 2011.

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 Happy Valley.

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
Happy Valley20112006Change
Quartile groupNumber%City of Onkaparinga %Number%City of Onkaparinga %2006 to 2011
Lowest group59915.517.358115.411.8+19
Medium lowest99025.620.492824.713.4+62
Medium highest1,18130.520.71,13430.214.0+47
Highest group1,10028.416.61,11829.710.9-18

Source: Australian Bureau of Statistics, Census of Population and Housing 2006 and 2011. Compiled and presented by .id , the population experts.

Equivalised household income - Quartile group dollar ranges
Calculated from income data for South Australia Weekly income by Census year
Equivalised household income ranges
2011
2006
2001
Lowest group $0 to $395 $0 to $332 $0 to $268
Medium lowest $396 to $689 $333 to $554 $269 to $437
Medium highest $690 to $1,101 $555 to $880 $438 to $690
Highest group $1,102 and over $881 and over $691 and over

Equivalised household income quartiles, 2011
Equivalised household income quartiles, 2011 Highest group, City of Onkaparinga: 16.6% Medium highest, City of Onkaparinga: 20.7% Medium lowest, City of Onkaparinga: 20.4% Lowest group, City of Onkaparinga: 17.3% Highest group, Happy Valley: 28.4% Medium highest, Happy Valley: 30.5% Medium lowest, Happy Valley: 25.6% Lowest group, Happy Valley: 15.5%
Source: Australian Bureau of Statistics, Census of Population and Housing, 2011 (Enumerated data)
Compiled and presented in profile.id by .id, the population experts.
Change in equivalised household income quartiles, 2006 to 2011
Change in equivalised household income quartiles, 2006 to 2011 Highest group, Happy Valley: -18 Medium highest, Happy Valley: +47 Medium lowest, Happy Valley: +62 Lowest group, Happy Valley: +19
Source: Australian Bureau of Statistics, Census of Population and Housing, 2006 and 2011 (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 Happy Valley compared to the City of Onkaparinga 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 Happy Valley between 2006 and 2011 was in the medium lowest quartile which showed an increase of 62 households.