Population Pyramid of Australia2024
Total population
26.7M
Median age
39
Peak year
2100
Peak population
43.1M
Age & sex distribution over time
1950 · 8.2M · median age 30.4
1980 · 14.7M · median age 29.4
2000 · 19.1M · median age 35.4
2024 · 26.7M · median age 39
2050 · 32.5M · median age 43
2100 · 43.1M · median age 45.8
Source: UN World Population Prospects 2024 Revision (CC BY 3.0 IGO). Values in thousands. Years after 2024 are medium-variant projections.
Key insights
Demographic profile
Australia presently shows a stationary pyramid typical of post-transition populations, with roughly equal cohorts at most ages below retirement. The median age in 2024 is 39 years.
Age composition
Children under 15 account for 17.8% of the population; people 65 and older account for 17.7%.
Peak population
UN medium-variant projections place Australia's peak population in 2100.
Long arc
In 1950 the population was 8.2 million with median age 30.4. Projected 2100 values are 43.1 million and median age 45.8.