Census comparison · 2011 · 2016 · 2021
Black Rock then and now
Side-by-side ABS Census comparison for Black Rock, SA (postcode 5431) — 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 | 30 | 36 | 36 | +6 · +20% |
| Median age | 54 | 58 | 62 | +8 · +14.8% |
| Median household income | $919/wk | $1,437/wk | $1,437/wk | +$518 · +56.4% |
| Median personal income | $485/wk | $1,083/wk | $1,020/wk | +$535 · +110.3% |
| Median rent | $10/wk | — | $0/wk | $10 · -100% |
| Median mortgage | $1,000/mo | — | $200/mo | $800 · -80% |
| Average household size | 2.2 | 1.8 | 2.2 | 0 · 0% |
Change is measured from the earliest available Census year to 2021 for each metric.
Black Rock trends (2016 → 2021)
Change since the previous Census. Historical figures are mapped from State Suburbs (SSC) to today's suburb boundaries.
Population
36
was 36 in 2016
0 · 0%
Household income
$1,437/wk
was $1,437/wk in 2016
$0 · 0%
Median age
62
was 58 in 2016
+4 · +6.9%
Dig deeper: Black Rock population growth · Black Rock then and now
2011 and 2016 values are mapped from State Suburbs (SSC) to 2021 suburb boundaries — see methodology.