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 Roper Gulf (R), accounting for 25%.
Section overview
Household income quartiles
Roper Gulf (R) - Households (Enumerated)
This table summarises household income quartiles for Roper Gulf (R) in 2021 for persons, with comparison against Regional NT.
Chart view
Household income quartiles snapshot
2021 distribution by category for Roper Gulf (R), with comparison markers for Regional NT.
Lowest group
2021 count
541
% of total
25.0%
541
25.0%
Medium lowest
2021 count
541
% of total
25.0%
541
25.0%
Medium highest
2021 count
541
% of total
25.0%
541
25.0%
Highest group
2021 count
541
% of total
25.0%
541
25.0%
Data table
Household income quartiles for Roper Gulf (R). Household income quartiles. 2021 counts and percentages compared with Regional NT.
| Category | 2021 count | 2021 % | Regional NT % |
|---|---|---|---|
| Lowest group | 541 | 25.0% | 25.0% |
| Medium lowest | 541 | 25.0% | 25.0% |
| Medium highest | 541 | 25.0% | 25.0% |
| Highest group | 541 | 25.0% | 25.0% |
| Total Households | 2,164 | 100.0% | 100.0% |