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 West Leederville, accounting for 40.7%.

Section overview

Household income quartiles

West Leederville - Households (Enumerated)

This table summarises household income quartiles for West Leederville in 2021 for persons, with comparison against Cambridge (T) and change since 2016.

Household income quartiles snapshot

2021 distribution by category for West Leederville, with comparison markers for Cambridge (T).

West Leederville
Cambridge (T)

Lowest group

2021 count

291

% of total

17.0%

Change from 2016

-

Medium lowest

2021 count

356

% of total

20.8%

Change from 2016

-

Medium highest

2021 count

368

% of total

21.5%

Change from 2016

-

Highest group

2021 count

697

% of total

40.7%

Change from 2016

-

Data table

Household income quartiles for West Leederville. Household income quartiles. 2021 and 2016 counts, percentages, and change compared with Cambridge (T).

Household income quartiles for West Leederville. Household income quartiles. 2021 and 2016 counts, percentages, and change compared with Cambridge (T).
Household income quartiles for West Leederville. Household income quartiles. 2021 and 2016 counts, percentages, and change compared with Cambridge (T).
Category20212016Change
Count%Cambridge (T)%Count%Cambridge (T)%Countpp
Lowest group29117.0%16.1%27219.6%16.6%--
Medium lowest35620.8%17.3%27319.6%17.5%--
Medium highest36821.5%17.4%30421.9%18.5%--
Highest group69740.7%49.3%54239.0%47.4%--
Total Households1,712100.0%100.0%1,391100.0%100.0%--