Population Pyramid of Japan2024
Total population
123.8M
Median age
50.4
Peak year
2009
Peak population
128.2M
Age & sex distribution over time
1950 · 86.4M · median age 22.4
1980 · 118.4M · median age 32.8
2000 · 127.0M · median age 41.8
2024 · 123.8M · median age 50.4
2050 · 105.1M · median age 53.8
2100 · 76.8M · median age 54
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
Japan presently shows a constrictive pyramid, narrower at the base than in the middle, reflecting sustained sub-replacement fertility and population ageing. The median age in 2024 is 50.4 years.
Age composition
Children under 15 account for 11.4% of the population; people 65 and older account for 29.8%.
Peak population
Japan's population peaked in 2009 and has been declining since.
Long arc
In 1950 the population was 86.4 million with median age 22.4. Projected 2100 values are 76.8 million and median age 54.