Tokyo Population 2025 Challengers. Currently, 92.9 % of the population of japan is urban (114,979,260 people in 2025) population density the 2025 population density in japan is 339 people per km 2 (879 people per mi 2 ),. This includes the prefectures of tokyo, kanagawa, saitama, chiba, ibaraki, toshigi, gunma and yamanishi.

The government reported monday that the sweeping trends of the country’s population decline and excess concentration of population in tokyo have not changed over. Tokyo’s 2025 population is now estimated at 37,115,000.