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 medium-high household income quartile held the largest share among households with income in Chaffey, accounting for 32.8%.

Section overview

Household income quartiles

Chaffey - Households (Enumerated)

This table summarises household income quartiles for Chaffey in 2021 for persons, with comparison against Renmark Paringa (DC) and change since 2016.

Household income quartiles snapshot

2021 distribution by category for Chaffey, with comparison markers for Renmark Paringa (DC).

Chaffey
Renmark Paringa (DC)

Lowest group

2021 count

17

% of total

25.4%

Change from 2016

-

Medium lowest

2021 count

15

% of total

22.4%

Change from 2016

-

Medium highest

2021 count

22

% of total

32.8%

Change from 2016

-

Highest group

2021 count

13

% of total

19.4%

Change from 2016

-

Data table

Household income quartiles for Chaffey. Household income quartiles. 2021 and 2016 counts, percentages, and change compared with Renmark Paringa (DC).

Household income quartiles for Chaffey. Household income quartiles. 2021 and 2016 counts, percentages, and change compared with Renmark Paringa (DC).
Household income quartiles for Chaffey. Household income quartiles. 2021 and 2016 counts, percentages, and change compared with Renmark Paringa (DC).
Category20212016Change
Count%Renmark Paringa (DC)%Count%Renmark Paringa (DC)%Countpp
Lowest group1725.4%30.1%1425.9%28.8%--
Medium lowest1522.4%28.3%1629.6%29.7%--
Medium highest2232.8%24.9%1629.6%24.9%--
Highest group1319.4%16.7%814.8%16.7%--
Total Households67100.0%100.0%54100.0%100.0%--