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 medium-low household income quartile held the largest share among households with income in Merseylea (part), accounting for 57.1%.
Section overview
Household income quartiles
Merseylea (part) - Households (Enumerated)
This table summarises household income quartiles for Merseylea (part) in 2021 for persons, with comparison against Kentish (M) and change since 2016.
This area boundary has changed from 2016 to 2021. As a result, 2016 values are mapped onto 2021 suburb boundaries using ABS concordance.
Boundary change is material, so 2016 change figures should be read as approximate.
Household income quartiles snapshot
2021 distribution by category for Merseylea (part), with comparison markers for Kentish (M).
Lowest group
Medium lowest
Medium highest
Highest group
Chart view
Household income quartiles change
Absolute change in category counts between 2016 and 2021.
Lowest group
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Medium lowest
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Medium highest
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Highest group
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Data table
Household income quartiles for Merseylea (part). Household income quartiles. 2021 and 2016 counts, percentages, and change compared with Kentish (M).
| Category | 2021 | 2016 | Change | |||||
|---|---|---|---|---|---|---|---|---|
| Count | % | Kentish (M)% | Count | % | Kentish (M)% | Count | pp | |
| Lowest group | 1 | 7.1% | 26.8% | 1 | 6.3% | 27.0% | - | - |
| Medium lowest | 8 | 57.1% | 28.8% | 5 | 31.3% | 28.3% | - | - |
| Medium highest | 2 | 14.3% | 24.9% | 8 | 50.0% | 26.0% | - | - |
| Highest group | 3 | 21.4% | 19.5% | 2 | 12.5% | 18.7% | - | - |
| Total Households | 14 | 100.0% | 100.0% | 16 | 100.0% | 100.0% | - | - |