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 Campbelltown (C) (SA), accounting for 25%.

Section overview

Household income quartiles

Campbelltown (C) (SA) - Households (Enumerated)

This table summarises household income quartiles for Campbelltown (C) (SA) in 2021 for persons, with comparison against Greater Adelaide.

Chart view

Household income quartiles snapshot

2021 distribution by category for Campbelltown (C) (SA), with comparison markers for Greater Adelaide.

Campbelltown (C) (SA)
Greater Adelaide

Lowest group

2021 count

5,061

% of total

25.0%

Medium lowest

2021 count

5,061

% of total

25.0%

Medium highest

2021 count

5,061

% of total

25.0%

Highest group

2021 count

5,061

% of total

25.0%

Data table

Household income quartiles for Campbelltown (C) (SA). Household income quartiles. 2021 counts and percentages compared with Greater Adelaide.

Household income quartiles for Campbelltown (C) (SA). Household income quartiles. 2021 counts and percentages compared with Greater Adelaide.
Household income quartiles for Campbelltown (C) (SA). Household income quartiles. 2021 counts and percentages compared with Greater Adelaide.
Category2021 count2021 %Greater Adelaide %
Lowest group5,06125.0%25.0%
Medium lowest5,06125.0%25.0%
Medium highest5,06125.0%25.0%
Highest group5,06125.0%25.0%
Total Households20,244100.0%100.0%