Tokyo Japan Population 2024. The current population of japan is 123,589,250 based on projections of the latest united nations data. 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. United nations population projections are also included through the year.