Census comparison · 2011 · 2016 · 2021
Undalya then and now
Side-by-side ABS Census comparison for Undalya, SA (postcode 5451) — how the suburb looked across Census years from 2011 to 2021.
Population
Census 2011 → 2016 → 2021
+25% over 10 years
| Metric | 2011 | 2016 | 2021 | Change (→2021) |
|---|---|---|---|---|
| Population | 28 | 29 | 35 | +7 · +25% |
| Median age | 49 | 43 | 53 | +4 · +8.2% |
| Median household income | $890/wk | $1,562/wk | $1,874/wk | +$984 · +110.6% |
| Median personal income | $548/wk | $900/wk | $966/wk | +$418 · +76.3% |
| Median rent | $115/wk | — | $250/wk | +$135 · +117.4% |
| Median mortgage | $1,192/mo | $2,167/mo | $1,159/mo | $33 · -2.8% |
| Average household size | 2.1 | 1.5 | 2.5 | +0.4 · +19% |
Change is measured from the earliest available Census year to 2021 for each metric.
Undalya trends (2016 → 2021)
Change since the previous Census. Historical figures are mapped from State Suburbs (SSC) to today's suburb boundaries.
Population
35
was 29 in 2016
+6 · +20.7%
Household income
$1,874/wk
was $1,562/wk in 2016
+$312 · +20%
Median age
53
was 43 in 2016
+10 · +23.3%
Dig deeper: Undalya population growth · Undalya then and now
2011 and 2016 values are mapped from State Suburbs (SSC) to 2021 suburb boundaries — see methodology.