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: Tea Tree Gully (C)
LGA
: Greater Adelaide
: Persons

Income

Household income quartiles

About this topic

Household income quartiles group households into four evenly sized income ranges so relative income position can be compared across places and across Census years. They provide a distribution view of household income rather than a simple count in fixed dollar brackets.

This topic is useful because raw household income amounts are influenced by inflation and broader economic shifts. Quartiles make it easier to see whether an area's households are concentrated toward lower, middle, or higher income positions over time.

Interpretation notes

  • This is a derived distribution of total household income, so each quartile shows relative position rather than a fixed income bracket.
  • It is useful for over-time comparison because quartile groupings are less distorted by inflation than raw dollar bands.

Key insight

In 2021, the highest household income quartile held the largest share among households with income in Tea Tree Gully (C), accounting for 28.5%.

Section overview

Household income quartiles

Tea Tree Gully (C) - Households (Enumerated)

This table summarises household income quartiles for Tea Tree Gully (C) in 2021 for persons, with comparison against Greater Adelaide and change since 2016.

Household income quartiles snapshot

2021 distribution by category for Tea Tree Gully (C), with comparison markers for Greater Adelaide.

Tea Tree Gully (C)
Greater Adelaide

Lowest group

Medium lowest

Medium highest

Highest group

Data table

Household income quartiles for Tea Tree Gully (C). Household income quartiles. 2021 and 2016 counts, percentages, and change compared with Greater Adelaide.

Household income quartiles for Tea Tree Gully (C). Household income quartiles. 2021 and 2016 counts, percentages, and change compared with Greater Adelaide.
Household income quartiles for Tea Tree Gully (C). Household income quartiles. 2021 and 2016 counts, percentages, and change compared with Greater Adelaide.
Category20212016Change
Count%Greater Adelaide%Count%Greater Adelaide%Countpp
Lowest group7,43820.4%23.1%6,41819.2%23.7%--
Medium lowest8,91524.5%24.1%8,17124.4%24.2%--
Medium highest9,69026.6%25.5%9,10527.2%25.3%--
Highest group10,36728.5%27.2%9,79129.2%26.9%--
Total Households36,410100.0%100.0%33,485100.0%100.0%--