Census comparison · 2011 · 2016 · 2021
St Johns then and now
Side-by-side ABS Census comparison for St Johns, SA (postcode 5373) — how the suburb looked across Census years from 2011 to 2021.
Population
Census 2011 → 2016 → 2021
-27.3% over 10 years
| Metric | 2011 | 2016 | 2021 | Change (→2021) |
|---|---|---|---|---|
| Population | 11 | 10 | 8 | -3 · -27.3% |
| Median age | 44 | 32 | 41 | -3 · -6.8% |
| Median household income | $905/wk | — | $2,124/wk | +$1,219 · +134.7% |
| Median personal income | $479/wk | $1,042/wk | $1,374/wk | +$895 · +186.8% |
| Median rent | $175/wk | — | $180/wk | +$5 · +2.9% |
| Median mortgage | $1,150/mo | — | $1,614/mo | +$464 · +40.3% |
| Average household size | 2.4 | — | 2.3 | -0.1 · -4.2% |
Change is measured from the earliest available Census year to 2021 for each metric.
St Johns trends (2016 → 2021)
Change since the previous Census. Historical figures are mapped from State Suburbs (SSC) to today's suburb boundaries.
Population
8
was 10 in 2016
-2 · -20%
Median age
41
was 32 in 2016
+9 · +28.1%
Dig deeper: St Johns population growth · St Johns then and now
2011 and 2016 values are mapped from State Suburbs (SSC) to 2021 suburb boundaries — see methodology.