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 Goodwood (SA), accounting for 35.6%.

Section overview

Household income quartiles

Goodwood (SA) - Households (Enumerated)

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

Household income quartiles snapshot

2021 distribution by category for Goodwood (SA), with comparison markers for Unley (C).

Goodwood (SA)
Unley (C)

Lowest group

2021 count

227

% of total

20.2%

Change from 2016

-

Medium lowest

2021 count

197

% of total

17.5%

Change from 2016

-

Medium highest

2021 count

301

% of total

26.8%

Change from 2016

-

Highest group

2021 count

400

% of total

35.6%

Change from 2016

-

Data table

Household income quartiles for Goodwood (SA). Household income quartiles. 2021 and 2016 counts, percentages, and change compared with Unley (C).

Household income quartiles for Goodwood (SA). Household income quartiles. 2021 and 2016 counts, percentages, and change compared with Unley (C).
Household income quartiles for Goodwood (SA). Household income quartiles. 2021 and 2016 counts, percentages, and change compared with Unley (C).
Category20212016Change
Count%Unley (C)%Count%Unley (C)%Countpp
Lowest group22720.2%18.6%20919.4%19.6%--
Medium lowest19717.5%19.4%19518.1%18.7%--
Medium highest30126.8%22.7%25323.5%22.2%--
Highest group40035.6%39.2%42039.0%39.5%--
Total Households1,125100.0%100.0%1,077100.0%100.0%--