Tokyo Japan Population 2024. As of october 1, 2022, the population of tokyo is estimated to be 14.041 million, or about 11.2% of japan's total population, and it has the largest population among all the 47 prefectures. These population estimates and projections come from the latest.
These prefectures account for 37.7 percent of the total population. The current population of japan is 123,568,346 based on projections of the latest united nations data.
