With approximately 14 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 540,000 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.

In 2020, the population census showed that Tokyo had the highest daytime population among Japanese prefectures, amounting to roughly 16.32 million. In contrast, Tottori Prefecture had the smallest daytime population, comprising approximately 550 thousand people.

Japan Population: Saitama-ken: Female: 80 to 84 Years data was reported at 148.000 Person th in 2017. This records an increase from the previous number of 140.000 Person th for 2016. Japan Population: Saitama-ken: Female: 80 to 84 Years data is updated yearly, averaging 111.000 Person th from Dec 2007 (Median) to 2017, with 11 observations. The data reached an all-time high of 148.000 Person th in 2017 and a record low of 90.000 Person th in 2007. Japan Population: Saitama-ken: Female: 80 to 84 Years data remains active status in CEIC and is reported by Statistical Bureau. The data is categorized under Global Database’s Japan – Table JP.G003: Population: Annual: By Prefecture.

In 2023, the population in Kyoto amounted to around 2.54 million people, slightly less than in the previous year. Unlike other major Japanese cities like Tokyo or Osaka, Kyoto's population numbers did not seem to be affected by the war years during the 1940s. The prefecture's population listed a continuous growth from 1.29 million people in 1920 to 2.64 million inhabitants in 2010.

Japan Population: Aichi-ken: 20 to 24 Years data was reported at 409.000 Person th in 2017. This records an increase from the previous number of 401.000 Person th for 2016. Japan Population: Aichi-ken: 20 to 24 Years data is updated yearly, averaging 448.000 Person th from Dec 1996 (Median) to 2017, with 22 observations. The data reached an all-time high of 605.000 Person th in 1996 and a record low of 391.000 Person th in 2015. Japan Population: Aichi-ken: 20 to 24 Years data remains active status in CEIC and is reported by Statistical Bureau. The data is categorized under Global Database’s Japan – Table JP.G003: Population: Annual: By Prefecture.

Japan Population: Aichi-ken: 0 to 4 Years data was reported at 323.000 Person th in 2017. This records a decrease from the previous number of 327.000 Person th for 2016. Japan Population: Aichi-ken: 0 to 4 Years data is updated yearly, averaging 351.500 Person th from Dec 1996 (Median) to 2017, with 22 observations. The data reached an all-time high of 370.000 Person th in 2002 and a record low of 323.000 Person th in 2017. Japan Population: Aichi-ken: 0 to 4 Years data remains active status in CEIC and is reported by Statistical Bureau. The data is categorized under Global Database’s Japan – Table JP.G003: Population: Annual: By Prefecture.

Japan Population: Hokkaido: Male: 5 to 9 Years data was reported at 101.000 Person th in 2017. This records a decrease from the previous number of 103.000 Person th for 2016. Japan Population: Hokkaido: Male: 5 to 9 Years data is updated yearly, averaging 118.500 Person th from Dec 1996 (Median) to 2017, with 22 observations. The data reached an all-time high of 146.000 Person th in 1996 and a record low of 101.000 Person th in 2017. Japan Population: Hokkaido: Male: 5 to 9 Years data remains active status in CEIC and is reported by Statistical Bureau. The data is categorized under Global Database’s Japan – Table JP.G003: Population: Annual: By Prefecture.

Japan Population: Hokkaido: 50 to 54 Years data was reported at 342.000 Person th in 2017. This records an increase from the previous number of 337.000 Person th for 2016. Japan Population: Hokkaido: 50 to 54 Years data is updated yearly, averaging 384.000 Person th from Dec 1996 (Median) to 2017, with 22 observations. The data reached an all-time high of 506.000 Person th in 2001 and a record low of 337.000 Person th in 2016. Japan Population: Hokkaido: 50 to 54 Years data remains active status in CEIC and is reported by Statistical Bureau. The data is categorized under Global Database’s Japan – Table JP.G003: Population: Annual: By Prefecture.

In 2023, the total population in Japan's capital Tokyo Prefecture amounted to approximately 14.1 million inhabitants. Tokyo's population rebounded after it declined for the first time post-WWII in 2021.

As of December 2023, close to 663,370 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.

Japan Population: Osaka-fu: Female: 45 to 49 Years data was reported at 359.000 Person th in 2017. This records an increase from the previous number of 350.000 Person th for 2016. Japan Population: Osaka-fu: Female: 45 to 49 Years data is updated yearly, averaging 287.000 Person th from Dec 1996 (Median) to 2017, with 22 observations. The data reached an all-time high of 407.000 Person th in 1996 and a record low of 244.000 Person th in 2006. Japan Population: Osaka-fu: Female: 45 to 49 Years data remains active status in CEIC and is reported by Statistical Bureau. The data is categorized under Global Database’s Japan – Table JP.G003: Population: Annual: By Prefecture.

Japan Population: Saga-ken: Male: 65 to 69 Years data was reported at 33.000 Person th in 2017. This records a decrease from the previous number of 34.000 Person th for 2016. Japan Population: Saga-ken: Male: 65 to 69 Years data is updated yearly, averaging 23.500 Person th from Dec 1996 (Median) to 2017, with 22 observations. The data reached an all-time high of 34.000 Person th in 2016 and a record low of 21.000 Person th in 2011. Japan Population: Saga-ken: Male: 65 to 69 Years data remains active status in CEIC and is reported by Statistical Bureau. The data is categorized under Global Database’s Japan – Table JP.G003: Population: Annual: By Prefecture.

In 2023, the total population of Osaka Prefecture in Japan amounted to approximately 8.76 million people. This marked a moderate decline of the population compared to around 8.87 million people in 2010.

Japan Population: Saga-ken: Female: 35 to 39 Years data was reported at 24.000 Person th in 2017. This records a decrease from the previous number of 25.000 Person th for 2016. Japan Population: Saga-ken: Female: 35 to 39 Years data is updated yearly, averaging 26.000 Person th from Dec 1996 (Median) to 2017, with 22 observations. The data reached an all-time high of 28.000 Person th in 1997 and a record low of 24.000 Person th in 2017. Japan Population: Saga-ken: Female: 35 to 39 Years data remains active status in CEIC and is reported by Statistical Bureau. The data is categorized under Global Database’s Japan – Table JP.G003: Population: Annual: By Prefecture.

Japan Population: Saga-ken: Male: 40 to 44 Years data was reported at 27.000 Person th in 2017. This stayed constant from the previous number of 27.000 Person th for 2016. Japan Population: Saga-ken: Male: 40 to 44 Years data is updated yearly, averaging 26.000 Person th from Dec 1996 (Median) to 2017, with 22 observations. The data reached an all-time high of 32.000 Person th in 1996 and a record low of 23.000 Person th in 2010. Japan Population: Saga-ken: Male: 40 to 44 Years data remains active status in CEIC and is reported by Statistical Bureau. The data is categorized under Global Database’s Japan – Table JP.G003: Population: Annual: By Prefecture.

In 2023, approximately 9.4 million people within the age group of 15 to 64 years were counted in Tokyo Prefecture, an increase from about 8.94 million people recorded in 2020. Over 3.2 million inhabitants in the metropolis were aged 65 years and older.

Japan Population: Hokkaido: Male: 75 to 79 Years data was reported at 129.000 Person th in 2017. This records an increase from the previous number of 127.000 Person th for 2016. Japan Population: Hokkaido: Male: 75 to 79 Years data is updated yearly, averaging 113.000 Person th from Dec 1996 (Median) to 2017, with 22 observations. The data reached an all-time high of 129.000 Person th in 2017 and a record low of 62.000 Person th in 1996. Japan Population: Hokkaido: Male: 75 to 79 Years data remains active status in CEIC and is reported by Statistical Bureau. The data is categorized under Global Database’s Japan – Table JP.G003: Population: Annual: By Prefecture.

Takaishi City(Takaishi Shi)'s Employed persons living in other prefectures is 612person which is the 458th highest in Japan (by City). It also ranks 35th in Osaka Prefecture, with 0.1% share of the entire Osaka. Transition Graphs and Comparison chart between Takaishi City and Mutsu City(Aomori) and Naruto City(Tokushima)(Closest City in Population) are available. Various data can be downloaded and output in csv format for use in EXCEL free of charge.

In 2020, the population of Tokyo Metropolis amounted to over 6,402 inhabitants per square kilometer. The number increased from approximately 5,517 inhabitants per square kilometer in 2000.

In 2023, around 2.42 million inhabitants of Osaka Prefecture were aged 65 and over, indicating a sharp increase of over one million compared to 2000. By comparison, the number of people aged between 15 years and 64 years stayed around the same level as the previous year, marking approximately 5.36 million inhabitants.