Tokyo Population 2024 Statistics 2024. Tokyo, japan 's capital and its most densely populated city, is also the world's largest metropolitan area, with roughly 37.4 million people calling its three prefectures home. The net migration rate for japan in 2023 was 0.516 per 1000 population, a 1.71%.

Tokyo, japan ‘s capital and its most densely populated city, is also the world’s largest metropolitan area, with roughly 37.4 million people calling its three prefectures home. While there is a range of factors determining the demographics of a country, japan’s most prominent feature is its population development and age structure.