Census comparison · 2011 · 2016 · 2021
Derby then and now
Side-by-side ABS Census comparison for Derby, WA (postcode 6728) — how the suburb looked across Census years from 2011 to 2021.
Population
Census 2011 → 2016 → 2021
-2.3% over 10 years
| Metric | 2011 | 2016 | 2021 | Change (→2021) |
|---|---|---|---|---|
| Population | 3,299 | 3,511 | 3,222 | -77 · -2.3% |
| Median age | 31 | 34 | 35 | +4 · +12.9% |
| Median household income | $1,519/wk | $1,586/wk | $1,713/wk | +$194 · +12.8% |
| Median personal income | $734/wk | $722/wk | $855/wk | +$121 · +16.5% |
| Median rent | $129/wk | $150/wk | $180/wk | +$51 · +39.5% |
| Median mortgage | $1,733/mo | $1,733/mo | $1,638/mo | $95 · -5.5% |
| Average household size | 2.8 | 2.6 | 2.5 | -0.3 · -10.7% |
Change is measured from the earliest available Census year to 2021 for each metric.
Derby trends (2016 → 2021)
Change since the previous Census. Historical figures are mapped from State Suburbs (SSC) to today's suburb boundaries.
Population
3,222
was 3,511 in 2016
-289 · -8.2%
Median rent
$180/wk
was $150/wk in 2016
+$30 · +20%
Household income
$1,713/wk
was $1,586/wk in 2016
+$127 · +8%
Median age
35
was 34 in 2016
+1 · +2.9%
Dig deeper: Derby population growth · Derby then and now
2011 and 2016 values are mapped from State Suburbs (SSC) to 2021 suburb boundaries — see methodology.