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 Narrogin, accounting for 35.4%.

Section overview

Household income quartiles

Narrogin - Households (Enumerated)

This table summarises household income quartiles for Narrogin in 2021 for persons, with comparison against Narrogin (S) and change since 2016.

Household income quartiles snapshot

2021 distribution by category for Narrogin, with comparison markers for Narrogin (S).

Narrogin
Narrogin (S)

Lowest group

2021 count

486

% of total

35.4%

Change from 2016

-

Medium lowest

2021 count

415

% of total

30.2%

Change from 2016

-

Medium highest

2021 count

288

% of total

21.0%

Change from 2016

-

Highest group

2021 count

184

% of total

13.4%

Change from 2016

-

Data table

Household income quartiles for Narrogin. Household income quartiles. 2021 and 2016 counts, percentages, and change compared with Narrogin (S).

Household income quartiles for Narrogin. Household income quartiles. 2021 and 2016 counts, percentages, and change compared with Narrogin (S).
Household income quartiles for Narrogin. Household income quartiles. 2021 and 2016 counts, percentages, and change compared with Narrogin (S).
Category20212016Change
Count%Narrogin (S)%Count%Narrogin (S)%Countpp
Lowest group48635.4%33.6%46333.9%32.2%--
Medium lowest41530.2%29.9%40229.5%29.4%--
Medium highest28821.0%21.9%31623.2%23.6%--
Highest group18413.4%14.7%18413.5%14.9%--
Total Households1,373100.0%100.0%1,365100.0%100.0%--