Census comparison · 2011 · 2016 · 2021
St Marys then and now
Side-by-side ABS Census comparison for St Marys, SA (postcode 5042) — how the suburb looked across Census years from 2011 to 2021.
Population
Census 2011 → 2016 → 2021
+11.7% over 10 years
| Metric | 2011 | 2016 | 2021 | Change (→2021) |
|---|---|---|---|---|
| Population | 2,695 | 2,759 | 3,010 | +315 · +11.7% |
| Median age | 33 | 34 | 35 | +2 · +6.1% |
| Median household income | $962/wk | $1,147/wk | $1,490/wk | +$528 · +54.9% |
| Median personal income | $506/wk | $560/wk | $785/wk | +$279 · +55.1% |
| Median rent | $235/wk | $260/wk | $285/wk | +$50 · +21.3% |
| Median mortgage | $1,517/mo | $1,600/mo | $1,654/mo | +$137 · +9% |
| Average household size | 2.4 | 2.4 | 2.4 | 0 · 0% |
Change is measured from the earliest available Census year to 2021 for each metric.
St Marys trends (2016 → 2021)
Change since the previous Census. Historical figures are mapped from State Suburbs (SSC) to today's suburb boundaries.
Population
3,010
was 2,759 in 2016
+251 · +9.1%
Median rent
$285/wk
was $260/wk in 2016
+$25 · +9.6%
Household income
$1,490/wk
was $1,147/wk in 2016
+$343 · +29.9%
Median age
35
was 34 in 2016
+1 · +2.9%
Dig deeper: St Marys population growth · St Marys then and now
2011 and 2016 values are mapped from State Suburbs (SSC) to 2021 suburb boundaries — see methodology.