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 Truro (part), accounting for 34.2%.

Section overview

Household income quartiles

Truro (part) - Households (Enumerated)

This table summarises household income quartiles for Truro (part) in 2021 for persons, with comparison against Mid Murray (DC) and change since 2016.

Household income quartiles snapshot

2021 distribution by category for Truro (part), with comparison markers for Mid Murray (DC).

Truro (part)
Mid Murray (DC)

Lowest group

2021 count

24

% of total

15.2%

Change from 2016

-

Medium lowest

2021 count

44

% of total

27.8%

Change from 2016

-

Medium highest

2021 count

54

% of total

34.2%

Change from 2016

-

Highest group

2021 count

36

% of total

22.8%

Change from 2016

-

Data table

Household income quartiles for Truro (part). Household income quartiles. 2021 and 2016 counts, percentages, and change compared with Mid Murray (DC).

Household income quartiles for Truro (part). Household income quartiles. 2021 and 2016 counts, percentages, and change compared with Mid Murray (DC).
Household income quartiles for Truro (part). Household income quartiles. 2021 and 2016 counts, percentages, and change compared with Mid Murray (DC).
Category20212016Change
Count%Mid Murray (DC)%Count%Mid Murray (DC)%Countpp
Lowest group2415.2%40.8%4225.8%35.6%--
Medium lowest4427.8%29.9%3923.9%30.6%--
Medium highest5434.2%18.8%4326.4%21.7%--
Highest group3622.8%10.5%3923.9%12.2%--
Total Households158100.0%100.0%163100.0%100.0%--