Tokyo Population 2024 Estimate. The current population of japan in 2024 is 122,631,432. The population in all of japan's 47 prefectures except tokyo is projected to fall in 2050 from 2020 levels, a government estimate showed friday.
The current population of japan is 125,973,941 as of sunday, august 25, 2024. The current population of japan is 123,658,971 based on projections of the latest united nations data.