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 Kyle Bay, accounting for 50.7%.

Section overview

Household income quartiles

Kyle Bay - Households (Enumerated)

This table summarises household income quartiles for Kyle Bay in 2021 for persons, with comparison against Georges River (A) and change since 2016.

Household income quartiles snapshot

2021 distribution by category for Kyle Bay, with comparison markers for Georges River (A).

Kyle Bay
Georges River (A)

Lowest group

2021 count

33

% of total

11.3%

Change from 2016

-

Medium lowest

2021 count

50

% of total

17.1%

Change from 2016

-

Medium highest

2021 count

61

% of total

20.9%

Change from 2016

-

Highest group

2021 count

148

% of total

50.7%

Change from 2016

-

Data table

Household income quartiles for Kyle Bay. Household income quartiles. 2021 and 2016 counts, percentages, and change compared with Georges River (A).

Household income quartiles for Kyle Bay. Household income quartiles. 2021 and 2016 counts, percentages, and change compared with Georges River (A).
Household income quartiles for Kyle Bay. Household income quartiles. 2021 and 2016 counts, percentages, and change compared with Georges River (A).
Category20212016Change
Count%Georges River (A)%Count%Georges River (A)%Countpp
Lowest group3311.3%22.2%3010.8%21.8%--
Medium lowest5017.1%23.9%4917.6%23.8%--
Medium highest6120.9%26.4%6222.2%26.8%--
Highest group14850.7%27.5%13849.5%27.7%--
Total Households292100.0%100.0%279100.0%100.0%--