In 2023, the total population in Japan's capital Tokyo Prefecture amounted to approximately **** million inhabitants. Tokyo's population rebounded after it declined for the first time post-WWII in ****.

In 2023, approximately *** million people within the age group of 15 to 64 years were counted in Tokyo Prefecture, an increase from about *** million people recorded in 2020. Over *** million inhabitants in the metropolis were aged 65 years and older.

In 2023, there were close to **** million people aged 15 years and older in Tokyo Prefecture, of which about ** percent were women. The population aged 15 years and older in the prefecture decreased in 2021 for the first time in the last decade.

With approximately ** million inhabitants, Tokyo Prefecture was the largest prefecture based on population size in Japan as of 2023. The smallest prefecture in this regard was Tottori Prefecture, which in the same year counted about ******* residents. Rural depopulation Like many industrial economies, Japan is facing the problem of depopulating rural areas. While the birth rate continues to decline, many young people decide to migrate from small towns and villages to large cities like Tokyo or Osaka for higher education and employment. The population of Tokyo Prefecture has shown substantial growth over the past decades and consists largely of working age citizens. Smaller communities are trying to counteract the depopulation process with initiatives meant to invite younger workers and tourists back. Migration to Japan Japan is often described as a very homogenous society, with a low share of foreign residents. Despite the declining birthrate and many businesses experiencing a labor shortage, companies have been hesitant to employ foreign workers, in part due to the strict immigration laws. The Japanese Government has tried to ease immigration restrictions and encourage foreigners to work in Japan. The largest share of foreign workers in Japan, however, is residing in the county with a permanent residence or as the family member of a Japanese national.

Population, female (% of total population) in Japan was reported at 51.22 % in 2024, according to the World Bank collection of development indicators, compiled from officially recognized sources. Japan - Population, female (% of total) - actual values, historical data, forecasts and projections were sourced from the World Bank on July of 2025.

Urban population (% of total population) in Japan was reported at 92.13 % in 2024, according to the World Bank collection of development indicators, compiled from officially recognized sources. Japan - Urban population (% of total) - actual values, historical data, forecasts and projections were sourced from the World Bank on September of 2025.

In 2023, the male population in Tokyo Prefecture amounted to around *** million. The number of men in the prefecture declined in 2021 for the first time in the past decade.

In 2023, the female population in Tokyo Prefecture amounted to around **** million. The number of women in the prefecture decreased in 2021 for the first time in years.

With approximately **** million inhabitants, Tokyo was Japan's most populous city as of 2023, followed by Yokohama, which, in the same year, counted about **** million inhabitants. In total, there were twelve cities with a population of over one million people in Japan.

The population of Tokyo City amounted to approximately **** million people in 2023. Sapporo, the largest city on the northern Japanese island Hokkaido, came in fifth with around **** million inhabitants in the same year.

In 2024, about 93.7 percent of men aged 45 to 54 years in Tokyo Prefecture in Japan were employed. The employment rate of men aged 65 years and older declined to 35.2 percent.

東京都の上水道給水人口の統計データです。最新の2023年の数値「14,026,502人」を含む1976～2023年までの推移グラフや人口が近い神奈川県(神奈川県)との比較表などの情報を無料で公開しています。csv形式でのダウンロードも可能でEXCELでも開けますので、研究や分析レポートにお役立て下さい。

東京都の可住地面積１k㎡当たり人口密度の統計データです。最新の2023年の数値「9,860人」を含む1975～2023年までの推移グラフや人口が近い神奈川県(神奈川県)との比較表などの情報を無料で公開しています。csv形式でのダウンロードも可能でEXCELでも開けますので、研究や分析レポートにお役立て下さい。

In 2023, the male population was estimated to reach approximately ***** million, while the female population was estimated at around ***** million. These figures were forecasted to shrink to about **** million men and ***** million women by 2120.

中央区(東京都)の住民基本台帳人口（総数）の統計データです。最新の2023年の数値「174,074人」を含む2013～2023年までの推移グラフや総面積が近い清瀬市(東京都)と福生市(東京都)との比較表などの情報を無料で公開しています。csv形式でのダウンロードも可能でEXCELでも開けますので、研究や分析レポートにお役立て下さい。

Tokyo Prefecture continued to be a magnet for domestic migration in Japan, attracting nearly ****** new residents from other prefectures in 2023. By contrast, Hiroshima Prefecture showed the highest population loss due to outbound migration within the country, with a net loss of approximately ***** migrants. Attractiveness of Tokyo The population density in the prefecture has grown over the past two decades, surpassing ***** inhabitants per square kilometer in 2020. The appealing nature of Tokyo is also reflected in the age demographics of the metropolis, with most residents falling within the working-age group of 15 to 64 years. Numerous prestigious universities and large corporations make the area a popular destination for young people with aspirations. Depopulation of rural areas The migration patterns across Japan's prefectures indicate significant regional disparities. While Tokyo leads in population size with ** million inhabitants in 2023, prefectures like Tottori struggle to retain residents, counting only about ******* people. This imbalance has prompted concerns about the sustainability of rural communities and has led to various initiatives aimed at revitalizing less populous areas. The Japanese government faces the complex task of addressing these demographic shifts while also navigating challenges resulting from a nationwide aging population due to prolonged life expectancy and fertility decline.

As of 2025, Tokyo-Yokohama in Japan was the largest world urban agglomeration, with 37 million people living there. Delhi ranked second with more than 34 million, with Shanghai in third with more than 30 million inhabitants.

Japan’s largest city, greater Tokyo, had a staggering ***** million inhabitants in 2023, making it the most populous city across the Asia-Pacific region. India had the second largest city after Japan with a population consisting of approximately ** million inhabitants. Contrastingly, approximately *** thousand inhabitants populated Papua New Guinea's largest city in 2023. A megacity regionNot only did Japan and India have the largest cities throughout the Asia-Pacific region but they were among the three most populated cities worldwide in 2023. Interestingly, over half on the world’s megacities were situated in the Asia-Pacific region. However, being home to more than half of the world’s population, it does not seem surprising that by 2025 it is expected that more than two thirds of the megacities across the globe will be located in the Asia Pacific region. Other megacities are also expected to emerge within the Asia-Pacific region throughout the next decade. There have even been suggestions that Indonesia’s Jakarta and its conurbation will overtake Greater Tokyo in terms of population size by 2030. Increasing populationsIncreased populations in megacities can be down to increased economic activity. As more countries across the Asia-Pacific region have made the transition from agriculture to industry, the population has adjusted accordingly. Thus, more regions have experienced higher shares of urban populations. However, as many cities such as Beijing, Shanghai, and Seoul have an aging population, this may have an impact on their future population sizes, with these Asian regions estimated to have significant shares of the population being over 65 years old by 2035.

As of December 2023, close to ******* foreign nationals lived in Tokyo Prefecture. The prefecture of Japan's capital was followed by Aichi Prefecture, which is home to many manufacturing businesses that depend on foreign labor. The lowest number of foreign residents was recorded in Akita Prefecture, which is part of the more rural Tohoku region.

In the past decade, Japan’s degree of urbanization has leveled off at around 92.04 percent. This means that less than 10 percent of Japan’s population of 126 million inhabitants do not live in an urban setting. Japan is well above the degree of urbanization worldwide, which is 55 percent. Japan is also known for its high population density: In 2017, it amounted to an eye-watering 347.78 inhabitants per square kilometer - however, it is not even among the top twenty countries with the highest population density worldwide. That ranking is lead by Monaco, followed by China, and Singapore. Japan’s aging population The main demographic challenge that Japan currently faces is an aging population, as the number of inhabitants over 65 years old is an increasing percentage of the population. As of 2018, Japan is the country with the largest percentage of total population over 65 years, and life expectancy at birth there is about 84 years. Simultaneously, the birth rate in Japan is declining, resulting in negative population growth in recent years. One method Japan is using to address these demographic shifts is by investing in automated work processes; it's one of the top countries interested in collaborative robots.