Census 2011 → 2021
Mount Observation population growth
How the population of Mount Observation, SA (5255) changed across ABS Census years from 2011 to 2021.
Population
Census 2011 → 2016 → 2021
+233.3% over 10 years
2011 population
3
2016 population
16
2021 population
10
2011 → 2021
+233.3%
-6 since 2016
Mount Observation trends (2016 → 2021)
Change since the previous Census. Historical figures are mapped from State Suburbs (SSC) to today's suburb boundaries.
Population
10
was 16 in 2016
-6 · -37.5%
Median age
39
was 41 in 2016
-2 · -4.9%
Dig deeper: Mount Observation population growth · Mount Observation then and now
Source: ABS Census 2011, 2016 & 2021. Methodology