As of 2024, the total population in Japan was estimated to be approximately ********************. The projection for 2100 indicated an almost ** percent decrease in population to around **** million people.

Total current population for Japan in 2025 is 121,960,408, a 0.55% decline from 2024.

<ul style='margin-top:20px;'>

<li>Total population for Japan in 2024 was <strong>122,631,432</strong>, a <strong>1.51% decline</strong> from 2023.</li>
<li>Total population for Japan in 2023 was <strong>124,516,650</strong>, a <strong>0.49% decline</strong> from 2022.</li>
<li>Total population for Japan in 2022 was <strong>125,124,989</strong>, a <strong>0.44% decline</strong> from 2021.</li>
</ul>Total population is based on the de facto definition of population, which counts all residents regardless of legal status or citizenship. The values shown are midyear estimates.

Approximately 36.5 million people in Japan were estimated to be within the age group 65 and over in 2024. This number was projected to increase until 2040 and then decline to about 20.1 million by 2120.

The median age of the population in Japan has steadily been increasing since 1950 and is projected to be around 47.7 years old in 2020. As of 2021, the median age of Japan is the second highest in the world, behind the Principality of Monaco. The elderly in Japan An improved quality of life and regular health checks are just two reasons why Japan has one of the highest life expectancies in the world. The life expectancy from birth in Japan improved significantly after World War II, rising 20 years in the decade between 1945 and 1955. As life expectancy continues to increase, Japan expects difficulties caring for the older generation in the future. Shortages in the service sector are already a major concern, with demand for nurses and care workers increasing. Fertility and birth rates The fertility rate among Japan’s population has been around 1.4 children per woman since 2010. Apart from a small baby boom in the early seventies, the crude birth rate of Japan has been declining since 1950 and is expected to be as low as 7.5 births per thousand people in 2020. With falling birth rates and such a large share of its inhabitants reaching their later years, Japan’s total population is expected to continue declining.

Of the G7 countries, Canada, the United Kingdom, and the United States were forecast to have a constant population ******** until 2050. In Japan, Germany, and Italy, the population is forecast to constantly ******* due to aging populations and falling fertility rates. In France, the population was first expected to decline by 2048.

This dataset presents long-term projections of the major economic indices (e.g., production, capital stock, and labor population) for Japan's 47 prefectures. The economic projections are based on the econometric models estimated from historical data, and the projection results corresponding to ten socioeconomic scenarios are available. The learning period is from 1975 to 2012, and the projection period is 2013 to 2100. Economic value is measured in constant 2000 JPY. The historical data on the economic indices are from the Regional-Level Japan Industrial Productivity (R-JIP) Database 2017 developed by the Research Institute of Economy, Trade, and Industry (RIETI). The historical data on population are from the Statistics Bureau of Japan. The population scenarios used for the economic projections are consistent with the Japan Shared Socioeconomic Pathways (JPNSSPs) developed by the National Institute for Environmental Studies (NIES). For details of the econometric models and socioeconomic scenarios, see Honjo et al. (2021, Heliyon 7, e06412. https://doi.org/10.1016/j.heliyon.2021.e06412). This study was supported by the Environment Research and Technology Development Fund JPMEERF20182005 of the Environmental Restoration and Conservation Agency of Japan.

Since 1970, the median age of China’s population has continued to increase from around ** years to around **** years in 2020. According to estimates from the United Nations, the increasing trend will slow down when the median age will reach ** years in the middle of the 21st century and will remain at around ** years up to 2100. China’s aging population Although the median age of China’s population is still lower than in many developed countries, for example in Japan, the consequences of a rapidly aging population have already become a concern for the country’s future. As the most populated country in the world, the large labor force in China contributed to the country’s astonishing economic growth in the last decades. Nowadays however, the aging population is going to become a burden for China’s social welfare system and could change China’s economic situation. Reasons for the aging population Like in many other countries, increasing life expectancy is regarded as the main reason for the aging of the population. As healthcare and living standards have improved, life expectancy in China has also increased. In addition, the one-child policy led to a decreasing fertility rate in China, which further increased the share of older people in the society. Even though the one-child policy has been abolished in 2016, many young people are refraining from having children, largely due to the high costs of raising a child, career pressure and the pursuit of freedom.

Mitte des Jahres 2023 ist Indien mit rund 1,44 Milliarden Einwohner:innen das Land mit der weltweit größten Bevölkerungszahl. China steht im Jahr 2023 mit rund 1,42 Milliarden Einwohner:innen weltweit auf Platz, gefolgt von den USA mit einer Gesamtbevölkerung von rund 343,5 Millionen Menschen. Im Jahr 2023 hat Indien China als bevölkerungsreichstes Land abgelöst. Im Laufe der kommenden Jahrzehnte werden einige neue Länder in die Liste der 10 bevölkerungsreichsten Länder der Welt hinzukommen (z.B. DR Kongo oder Tansania) und andere Länder werden aus den Top 10 herausfallen (z.B. Russland). Im Jahr 2100 wird laut der Prognose Indien mit rund 1,5 Milliarden Einwohner:innen der bevölkerungsreichste Staat der Welt sein. Chinas Gesamtbevölkerung wird sich hingegen bis zum Jahr 2100 nahezu halbieren auf rund 633,4 Millionen Bürger:innen. Die Statistik zeigt die zehn Länder mit der jeweils größten Bevölkerung in den Jahren 1950, 2000, 2020 und 2023 sowie entsprechende Prognosen für 2030, 2050 und 2100. Hier finden sie Die 20 Länder mit der größten Bevölkerung 2023.