Chart and table of population level and growth rate for the Tokyo, Japan metro area from 1950 to 2025.

Population density per pixel at 100 metre resolution. WorldPop provides estimates of numbers of people residing in each 100x100m grid cell for every low and middle income country. Through ingegrating cencus, survey, satellite and GIS datasets in a flexible machine-learning framework, high resolution maps of population counts and densities for 2000-2020 are produced, along with accompanying metadata. DATASET: Alpha version 2010 and 2015 estimates of numbers of people per grid square, with national totals adjusted to match UN population division estimates (http://esa.un.org/wpp/) and remaining unadjusted. REGION: Africa SPATIAL RESOLUTION: 0.000833333 decimal degrees (approx 100m at the equator) PROJECTION: Geographic, WGS84 UNITS: Estimated persons per grid square MAPPING APPROACH: Land cover based, as described in: Linard, C., Gilbert, M., Snow, R.W., Noor, A.M. and Tatem, A.J., 2012, Population distribution, settlement patterns and accessibility across Africa in 2010, PLoS ONE, 7(2): e31743. FORMAT: Geotiff (zipped using 7-zip (open access tool): www.7-zip.org) FILENAMES: Example - AGO10adjv4.tif = Angola (AGO) population count map for 2010 (10) adjusted to match UN national estimates (adj), version 4 (v4). Population maps are updated to new versions when improved census or other input data become available.

Japan Population: Tokyo-to: Male: 35 to 39 Years data was reported at 524.000 Person th in 2017. This records a decrease from the previous number of 533.000 Person th for 2016. Japan Population: Tokyo-to: Male: 35 to 39 Years data is updated yearly, averaging 535.500 Person th from Dec 1996 (Median) to 2017, with 22 observations. The data reached an all-time high of 606.000 Person th in 2010 and a record low of 394.000 Person th in 1996. Japan Population: Tokyo-to: Male: 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.

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.

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.

In 1800, the population of Japan was just over 30 million, a figure which would grow by just two million in the first half of the 19th century. However, with the fall of the Tokugawa shogunate and the restoration of the emperor in the Meiji Restoration of 1868, Japan would begin transforming from an isolated feudal island, to a modernized empire built on Western models. The Meiji period would see a rapid rise in the population of Japan, as industrialization and advancements in healthcare lead to a significant reduction in child mortality rates, while the creation overseas colonies would lead to a strong economic boom. However, this growth would slow beginning in 1937, as Japan entered a prolonged war with the Republic of China, which later grew into a major theater of the Second World War. The war was eventually brought to Japan's home front, with the escalation of Allied air raids on Japanese urban centers from 1944 onwards (Tokyo was the most-bombed city of the Second World War). By the war's end in 1945 and the subsequent occupation of the island by the Allied military, Japan had suffered over two and a half million military fatalities, and over one million civilian deaths.

The population figures of Japan were quick to recover, as the post-war “economic miracle” would see an unprecedented expansion of the Japanese economy, and would lead to the country becoming one of the first fully industrialized nations in East Asia. As living standards rose, the population of Japan would increase from 77 million in 1945, to over 127 million by the end of the century. However, growth would begin to slow in the late 1980s, as birth rates and migration rates fell, and Japan eventually grew to have one of the oldest populations in the world. The population would peak in 2008 at just over 128 million, but has consistently fallen each year since then, as the fertility rate of the country remains below replacement level (despite government initiatives to counter this) and the country's immigrant population remains relatively stable. The population of Japan is expected to continue its decline in the coming years, and in 2020, it is estimated that approximately 126 million people inhabit the island country.

Tatebayashi City(Tatebayashi Shi)'s (Population census) No. of employees (Temporary employees) is 1,148person which is the 312th highest in Japan (by City). It also ranks 7th in Gunma Prefecture, with 3.88% share of the entire Gunma. Transition Graphs and Comparison chart between Tatebayashi City and Shiki City(Saitama) and Kunitachi City(Tokyo)(Closest City in Population) are available. Various data can be downloaded and output in csv format for use in EXCEL free of charge.

Fussa City(Fussa Shi)'s (Population census) No. of employees (Regular employees) is 12,208person which is the 546th highest in Japan (by City). It also ranks 48th in Tokyo Prefecture, with 0.43% share of the entire Tokyo. Transition Graphs and Comparison chart between Fussa City and Ishikari City(Hokkai do) and Annaka City(Gunma)(Closest City in Population) are available. Various data can be downloaded and output in csv format for use in EXCEL free of charge.

Ashikaga City(Ashikaga Shi)'s (Population census) No. of employees (Part-time employees and others) is 19,057person which is the 167th highest in Japan (by City). It also ranks 4th in Tochigi Prefecture, with 8.15% share of the entire Tochigi. Transition Graphs and Comparison chart between Ashikaga City and Higashimurayama City(Tokyo) and Tama City(Tokyo)(Closest City in Population) are available. Various data can be downloaded and output in csv format for use in EXCEL free of charge.

Yamato City(Yamato Shi)'s (Population census) No. of employees (Part-time employees and others) is 29,503person which is the 105th highest in Japan (by City). It also ranks 9th in Kanagawa Prefecture, with 2.74% share of the entire Kanagawa. Transition Graphs and Comparison chart between Yamato City and Matsumoto City(Nagano) and Chofu City(Tokyo)(Closest City in Population) are available. Various data can be downloaded and output in csv format for use in EXCEL free of charge.

's (Population census) Employed persons, worked besides doing housework is 9,153person which is the 269th highest in Japan (by City). It also ranks 17th in Osaka Prefecture, with 1.65% share of the entire Osaka. Transition Graphs and Comparison chart between Sakai Shi Sakai ku and Saitama Shi Kita ku(Saitama) and Musashino City(Tokyo)(Closest City in Population) are available. Various data can be downloaded and output in csv format for use in EXCEL free of charge.

Inagi City(Inagi Shi)'s (Population census) No. of employees (Temporary employees) is 1,293person which is the 272nd highest in Japan (by City). It also ranks 40th in Tokyo Prefecture, with 0.7% share of the entire Tokyo. Transition Graphs and Comparison chart between Inagi City and Nisshin City(Aichi) and Yokote City(Akita)(Closest City in Population) are available. Various data can be downloaded and output in csv format for use in EXCEL free of charge.

's Median age is 46age which is the 1451st highest in Japan (by City). It also ranks 43rd in Saitama Prefecture. Transition Graphs and Comparison chart between Saitama Shi Minuma ku and Nagoya Shi Meito ku(Aichi) and TokyYO chuo ku(Tokyo)(Closest City in Population) are available. Various data can be downloaded and output in csv format for use in EXCEL free of charge.

Sayama City(Sayama Shi)'s (Population census) No. of employees (Part-time employees and others) is 20,359person which is the 158th highest in Japan (by City). It also ranks 13th in Saitama Prefecture, with 2.21% share of the entire Saitama. Transition Graphs and Comparison chart between Sayama City and Kariya City(Aichi) and Higashimurayama City(Tokyo)(Closest City in Population) are available. Various data can be downloaded and output in csv format for use in EXCEL free of charge.

Kanazawa City(Kanazawa Shi)'s (Population census) No. of employees (Temporary employees) is 5,619person which is the 45th highest in Japan (by City). It also ranks 1st in Ishikawa Prefecture, with 41.13% share of the entire Ishikawa. Transition Graphs and Comparison chart between Kanazawa City and KatsSUshika ku(Tokyo) and Fujisawa City(Kanagawa)(Closest City in Population) are available. Various data can be downloaded and output in csv format for use in EXCEL free of charge.

Moka City(Moka Shi)'s (Population census) No. of employees (Regular employees) is 20,538person which is the 344th highest in Japan (by City). It also ranks 9th in Tochigi Prefecture, with 4.12% share of the entire Tochigi. Transition Graphs and Comparison chart between Moka City and Akiruno City(Tokyo) and Gamagori City(Aichi)(Closest City in Population) are available. Various data can be downloaded and output in csv format for use in EXCEL free of charge.

Over the last decade, Japan’s population has aged more and more, to the point where more than a quarter of Japanese were 65 years and older in 2022. Population growth has stopped and even reversed, since it’s been in the red for several years now.

It’s getting old

With almost 30 percent of its population being elderly inhabitants, Japan is considered the “oldest” country in the world today. Japan boasts a high life expectancy, in fact, the Japanese tend to live longer than the average human worldwide. The increase of the aging population is accompanied by a decrease of the total population caused by a sinking birth rate. Japan’s fertility rate has been below the replacement rate for many decades now, mostly due to economic uncertainty and thus a decreasing number of marriages.

Are the Japanese invincible?

There is no real mystery surrounding the ripe old age of so many Japanese. Their high average age is very likely due to high healthcare standards, nutrition, and an overall high standard of living – all of which could be adopted by other industrial nations as well. But with high age comes less capacity, and Japan’s future enemy might not be an early death, but rather a struggling social network.

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.

Ogasawara Village(Ogasawara Mura)'s Population by last school completed (Elementary school, lower secondary school) is 239person which is the 1719th highest in Japan (by City). It also ranks 59th in Tokyo Prefecture, with 0.03% share of the entire Tokyo. Transition Graphs and Comparison chart between Ogasawara Village and Aki gun tano Town(Kochi) and Takinoue Town(Hokkai do)(Closest City in Population) are available. Various data can be downloaded and output in csv format for use in EXCEL free of charge.

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.