Census comparison · 2011 · 2016 · 2021
Koojan then and now
Side-by-side ABS Census comparison for Koojan, WA (postcode 6510) — how the suburb looked across Census years from 2011 to 2021.
Population
Census 2011 → 2016 → 2021
-20% over 10 years
| Metric | 2011 | 2016 | 2021 | Change (→2021) |
|---|---|---|---|---|
| Population | 50 | 60 | 40 | -10 · -20% |
| Median age | 40 | 40 | 38 | -2 · -5% |
| Median household income | $1,375/wk | $2,874/wk | $2,562/wk | +$1,187 · +86.3% |
| Median personal income | $648/wk | $1,286/wk | $1,399/wk | +$751 · +115.9% |
| Median rent | $40/wk | — | $0/wk | $40 · -100% |
| Median mortgage | — | — | $0/mo | — |
| Average household size | 2.7 | 2.7 | 2.6 | -0.1 · -3.7% |
Change is measured from the earliest available Census year to 2021 for each metric.
Koojan trends (2016 → 2021)
Change since the previous Census. Historical figures are mapped from State Suburbs (SSC) to today's suburb boundaries.
Population
40
was 60 in 2016
-20 · -33.3%
Household income
$2,562/wk
was $2,874/wk in 2016
$312 · -10.9%
Median age
38
was 40 in 2016
-2 · -5%
Dig deeper: Koojan population growth · Koojan then and now
2011 and 2016 values are mapped from State Suburbs (SSC) to 2021 suburb boundaries — see methodology.