Census comparison · 2011 · 2016 · 2021
Blackrock then and now
Side-by-side ABS Census comparison for Blackrock, QLD (postcode 4850) — how the suburb looked across Census years from 2011 to 2021.
Population
Census 2011 → 2016 → 2021
-3% over 10 years
| Metric | 2011 | 2016 | 2021 | Change (→2021) |
|---|---|---|---|---|
| Population | 329 | 320 | 319 | -10 · -3% |
| Median age | 41 | 45 | 42 | +1 · +2.4% |
| Median household income | $1,208/wk | $1,375/wk | $1,963/wk | +$755 · +62.5% |
| Median personal income | $596/wk | $597/wk | $863/wk | +$267 · +44.8% |
| Median rent | $180/wk | $165/wk | $190/wk | +$10 · +5.6% |
| Median mortgage | $1,376/mo | $1,300/mo | $1,192/mo | $184 · -13.4% |
| 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.
Blackrock trends (2016 → 2021)
Change since the previous Census. Historical figures are mapped from State Suburbs (SSC) to today's suburb boundaries.
Population
319
was 320 in 2016
-1 · -0.3%
Median rent
$190/wk
was $165/wk in 2016
+$25 · +15.2%
Household income
$1,963/wk
was $1,375/wk in 2016
+$588 · +42.8%
Median age
42
was 45 in 2016
-3 · -6.7%
Dig deeper: Blackrock population growth · Blackrock then and now
2011 and 2016 values are mapped from State Suburbs (SSC) to 2021 suburb boundaries — see methodology.