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 Wilston, accounting for 51.5%.

Section overview

Household income quartiles

Wilston - Households (Enumerated)

This table summarises household income quartiles for Wilston in 2021 for persons, with comparison against Brisbane (C) and change since 2016.

Household income quartiles snapshot

2021 distribution by category for Wilston, with comparison markers for Brisbane (C).

Wilston
Brisbane (C)

Lowest group

2021 count

194

% of total

13.9%

Change from 2016

-

Medium lowest

2021 count

220

% of total

15.7%

Change from 2016

-

Medium highest

2021 count

265

% of total

18.9%

Change from 2016

-

Highest group

2021 count

721

% of total

51.5%

Change from 2016

-

Data table

Household income quartiles for Wilston. Household income quartiles. 2021 and 2016 counts, percentages, and change compared with Brisbane (C).

Household income quartiles for Wilston. Household income quartiles. 2021 and 2016 counts, percentages, and change compared with Brisbane (C).
Household income quartiles for Wilston. Household income quartiles. 2021 and 2016 counts, percentages, and change compared with Brisbane (C).
Category20212016Change
Count%Brisbane (C)%Count%Brisbane (C)%Countpp
Lowest group19413.9%19.1%19115.4%19.7%--
Medium lowest22015.7%21.4%17814.4%20.7%--
Medium highest26518.9%25.2%28122.7%25.1%--
Highest group72151.5%34.4%58947.5%34.5%--
Total Households1,400100.0%100.0%1,239100.0%100.0%--