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 Jingalup, accounting for 36.4%.

Section overview

Household income quartiles

Jingalup - Households (Enumerated)

This table summarises household income quartiles for Jingalup in 2021 for persons, with comparison against Kojonup (S) and change since 2016.

Household income quartiles snapshot

2021 distribution by category for Jingalup, with comparison markers for Kojonup (S).

Jingalup
Kojonup (S)

Lowest group

2021 count

4

% of total

12.1%

Change from 2016

-

Medium lowest

2021 count

6

% of total

18.2%

Change from 2016

-

Medium highest

2021 count

11

% of total

33.3%

Change from 2016

-

Highest group

2021 count

12

% of total

36.4%

Change from 2016

-

Data table

Household income quartiles for Jingalup. Household income quartiles. 2021 and 2016 counts, percentages, and change compared with Kojonup (S).

Household income quartiles for Jingalup. Household income quartiles. 2021 and 2016 counts, percentages, and change compared with Kojonup (S).
Household income quartiles for Jingalup. Household income quartiles. 2021 and 2016 counts, percentages, and change compared with Kojonup (S).
Category20212016Change
Count%Kojonup (S)%Count%Kojonup (S)%Countpp
Lowest group412.1%30.8%--29.6%--
Medium lowest618.2%28.0%822.9%30.7%--
Medium highest1133.3%24.8%1954.3%23.3%--
Highest group1236.4%16.4%822.9%16.4%--
Total Households33100.0%100.0%35100.0%100.0%--