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 lowest household income quartile held the largest share among households with income in Mount Ossa, accounting for 30.9%.

Section overview

Household income quartiles

Mount Ossa - Households (Enumerated)

This table summarises household income quartiles for Mount Ossa in 2021 for persons, with comparison against Mackay (R) and change since 2016.

Household income quartiles snapshot

2021 distribution by category for Mount Ossa, with comparison markers for Mackay (R).

Mount Ossa
Mackay (R)

Lowest group

2021 count

17

% of total

30.9%

Change from 2016

-

Medium lowest

2021 count

9

% of total

16.4%

Change from 2016

-

Medium highest

2021 count

14

% of total

25.5%

Change from 2016

-

Highest group

2021 count

15

% of total

27.3%

Change from 2016

-

Data table

Household income quartiles for Mount Ossa. Household income quartiles. 2021 and 2016 counts, percentages, and change compared with Mackay (R).

Household income quartiles for Mount Ossa. Household income quartiles. 2021 and 2016 counts, percentages, and change compared with Mackay (R).
Household income quartiles for Mount Ossa. Household income quartiles. 2021 and 2016 counts, percentages, and change compared with Mackay (R).
Category20212016Change
Count%Mackay (R)%Count%Mackay (R)%Countpp
Lowest group1730.9%23.9%1727.4%25.2%--
Medium lowest916.4%21.6%2235.5%23.1%--
Medium highest1425.5%25.8%1422.6%25.3%--
Highest group1527.3%28.6%914.5%26.5%--
Total Households55100.0%100.0%62100.0%100.0%--