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Tokyo Metropolis
Clockwise from top: Nishi-Shinjuku skyscrapers and Mount Fuji, Rainbow Bridge, National Diet Building, Tokyo Station in Marunouchi, Shibuya Crossing, Tokyo Skytree
Flag of Tokyo
Official logo of Tokyo
Anthem: "Tokyo Metropolitan Song"
(東京都歌, Tōkyō-to Ka)
Location within Japan
Location within Japan
Country Japan
Region Kantō
Island Honshu
Capital Tokyo
Divisions 23 special wards, 26 cities, 1 district, and 4 subprefectures
 • Body Tokyo Metropolitan Government
 • Total 2,194.07 km2 (847.14 sq mi)
Area rank 45th in Japan
Highest elevation
2,017 m (6,617 ft)
Lowest elevation
0 m (0 ft)
 • Total 13,960,236
 • Rank 1st in Japan
 • Density 6,363/km2 (16,480/sq mi)
 • Metro
37,468,000 (2018, Greater Tokyo Area) 1st in the world
Demonym(s) Tokyoite
 • Total, nominal ¥106.6 trillion
(~US$1.0 trillion)
 • Per capita ¥7.7 million
Time zone UTC+09:00 (Japan Standard Time)
ISO 3166-2
Flower Yoshino cherry
Tree Ginkgo
Bird Black-headed gull

Tokyo is the de facto capital and the prefecture of Japan with the largest population. Located at the head of Tokyo Bay, the prefecture forms part of the Kantō region on the central Pacific coast of Japan's main island of Honshu.

Tokyo is the political and economic center of the country, as well as the seat of the Emperor of Japan and the national government.

As of 2021, the prefecture has an estimated population of 13,960,236. The Greater Tokyo Area is the most populous metropolitan area in the world, with more than 37.393 million residents as of 2020.

Originally a fishing village, named Edo, the city became a political center in 1603, when it became the seat of the Tokugawa shogunate. By the mid-18th century, Edo was one of the most populous cities in the world at over one million. Following the end of the shogunate in 1868, the imperial capital in Kyoto was moved to the city, which was renamed Tokyo (which means "eastern capital").

Tokyo was devastated by the 1923 Great Kantō earthquake, and again by Allied bombing raids during World War II.

Beginning in the 1950s, the city underwent rapid reconstruction and expansion, going on to lead Japan's economic recovery after the war. Since 1943, the Tokyo Metropolitan Government has administered the prefecture's 23 special wards (formerly Tokyo City), various bed towns in the western area, and two outlying island chains.

Tokyo is the largest urban economy in the world. Part of an industrial region that includes the cities of Yokohama, Kawasaki, and Chiba, Tokyo is Japan's leading center of business and finance.

Tokyo has the world's tallest tower Tokyo Skytree and the world's largest underground floodwater diversion facility MAOUDC. The Tokyo Metro Ginza Line is the oldest underground metro line in East Asia (1927).

The city has hosted multiple international events, including the 1964 Summer Olympics and three G7 Summits (1979, 1986, and 1993); it will also host the postponed 2020 Summer Olympics.

Tokyo is an international center of research and development and is represented by several major universities, notably the University of Tokyo. Tokyo Station is the central hub for Japan's Shinkansen bullet train system, and the city is served by an extensive network of rail and subways. Notable districts of Tokyo include Chiyoda (the site of the Imperial Palace), Shinjuku (the city's administrative center), and Shibuya (a commercial, cultural and business hub).


Pre-1869 (Edo period)

Tokyo was originally a small fishing village called Edo. Edo was first fortified by the Edo clan, in the late twelfth century. In 1457, Ōta Dōkan built Edo Castle. In 1590, Tokugawa Ieyasu moved from Mikawa Province (his lifelong base) to the Kantō region. When he became shōgun in 1603, Edo became the center of his ruling.

During the Edo period, Edo grew into one of the largest cities in the world with a population topping one million by the 18th century. Edo was still the home of the Tokugawa shogunate and not the capital of Japan (the Emperor himself lived in Kyoto from 794 to 1868). During the Edo era, the city enjoyed a prolonged period of peace. The absence of war allowed Edo to put its resources to rebuilding in the wake of the consistent fires, earthquakes, and other devastating natural disasters that plagued the city.

This prolonged period of peace came to an end with the arrival of American Commodore Matthew C. Perry in 1853. Commodore Perry forced the opening of the ports of Shimoda and Hakodate, leading to an increase in the demand for new foreign goods and a severe rise in inflation. There were widespread rebellions and demonstrations. Meanwhile, supporters of the Meiji Emperor used these disruptions to overthrow the last Tokugawa shōgun, Yoshinobu, in 1867. After 265 years, the Pax Tokugawa came to an end.

Kidai Shōran (熈代勝覧), 1805. It illustrates scenes from the Edo period taking place along the Nihonbashi main street in Tokyo.


In 1869, the 17-year-old Emperor Meiji moved to Edo, and in accordance, the city was renamed Tokyo (meaning Eastern Capital). The city was divided into Yamanote and Shitamachi. Tokyo was already the nation's political and cultural center, and the emperor's residence made it a de facto imperial capital as well, with the former Edo Castle becoming the Imperial Palace. The city of Tokyo was officially established on May 1, 1889.

The Tokyo Metro Ginza Line portion between Ueno and Asakusa was the first subway line built in Japan and East Asia completed on December 30, 1927. Central Tokyo, like Osaka, has been designed since about 1900 to be centered on major railway stations in a high-density fashion, so suburban railways were built relatively cheaply at street level and with their own right-of-way. Though expressways have been built in Tokyo, the basic design has not changed.

Tokyo went on to suffer two major catastrophes in the 20th century: the 1923 Great Kantō earthquake, which left 140,000 dead or missing; and World War II.


In 1943, the city of Tokyo merged with the prefecture of Tokyo to form the "Metropolitan Prefecture" of Tokyo. Since then, the Tokyo Metropolitan Government served as both the prefecture government for Tokyo, as well as administering the special wards of Tokyo, for what had previously been Tokyo City. World War II wreaked widespread destruction of most of the city due to the persistent Allied air raids on Japan and the use of incendiary bombs. The bombing of Tokyo in 1944 and 1945 is estimated to have killed between 75,000 and 200,000 civilians and left more than half of the city destroyed. The deadliest night of the war came on March 9–10, 1945, the night of the American "Operation Meetinghouse" raid; as nearly 700,000 incendiary bombs rained on the eastern half of the city, mainly in heavily residential wards. Two-fifths of the city were completely burned, more than 276,000 buildings were demolished, 100,000 civilians were killed, and 110,000 more were injured. Between 1940 and 1945, the population of Japan's capital city dwindled from 6,700,000 to less than 2,800,000, with the majority of those who lost their homes living in "ramshackle, makeshift huts".


After the war, Tokyo became the base where the United States, under Douglas MacArthur, administered Japan for six years. Tokyo struggled to rebuild as occupation authorities stepped in and cut back on Japanese government rebuilding programs, focusing instead on simply improving roads and transportation. Tokyo did not experience fast economic growth until the 1950s.

After the occupation of Japan ended in 1952, Tokyo was completely rebuilt and was showcased to the world during the 1964 Summer Olympics.

The 1970s brought new high-rise developments. In 1978, Sunshine 60—the tallest skyscraper in Asia until 1985—and Narita International Airport were constructed, and the population increased to about 11 million in the metropolitan area. The Edo-Tokyo Open Air Architectural Museum has historic Japanese buildings that existed in the urban landscape of pre-war Tokyo.

Tokyo's subway and commuter rail network became one of the busiest in the world as more and more people moved to the area.

In the 1980s, real estate prices skyrocketed. That bubble burst in the early 1990s, and many companies, banks, and individuals were caught with debts. A major recession followed, making the 1990s Japan's "Lost Decade", from which it is now slowly recovering.

Land reclamation projects in Tokyo have been going on for centuries. The most prominent is the Odaiba area, now a major shopping and entertainment center. Various plans have been proposed for transferring national government functions from Tokyo to secondary capitals in other regions of Japan, to slow down rapid development in Tokyo and revitalize economically lagging areas of the country.

The 2011 Tōhoku earthquake and tsunami that devastated much of the northeastern coast of Honshu was felt in Tokyo. However, due to Tokyo's earthquake-resistant infrastructure, damage in Tokyo was very minor compared to areas directly hit by the tsunami, although activity in the city was largely halted. The subsequent nuclear crisis caused by the tsunami has also largely left Tokyo unaffected, despite occasional spikes in radiation levels.

On September 7, 2013, the IOC selected Tokyo to host the 2020 Summer Olympics. Tokyo was supposed to be the first Asian city to host the Olympic Games twice. However, due to the global outbreak and economic impact of COVID-19 pandemic, the 2020 Summer Olympics games were ultimately postponed to July 2021.

Geography and government

Tokyo by Sentinel-2, 2018-10-30
Satellite photo of Tokyo in 2018 taken by ESA Sentinel-2

The mainland portion of Tokyo lies northwest of Tokyo Bay and measures about 90 km (56 mi) east to west and 25 km (16 mi) north to south. The average elevation in Tokyo is 40 m (131 ft). Chiba Prefecture borders it to the east, Yamanashi to the west, Kanagawa to the south, and Saitama to the north. Mainland Tokyo is further subdivided into the special wards (occupying the eastern half) and the Tama area (多摩地域) stretching westwards. Tokyo has a latitude of 35.65 (near the 36th parallel north), which makes it more southern than Rome (41.90), Madrid (40.41) and New York City (40.71).

Also within the administrative boundaries of Tokyo Metropolis are two island chains in the Pacific Ocean directly south: the Izu Islands, and the Ogasawara Islands, which stretch more than 1,000 km (620 mi) away from the mainland. Because of these islands and the mountainous regions to the west, Tokyo's overall population density figures far under-represent the real figures for the urban and suburban regions of Tokyo.

Under Japanese law, Tokyo is designated as a to (), translated as metropolis. Its administrative structure is similar to that of Japan's other prefectures. The 23 special wards (特別区, tokubetsu-ku), which until 1943 constituted the city of Tokyo, are self-governing municipalities, each having a mayor, a council, and the status of a city.

In addition to these 23 special wards, Tokyo also includes 26 more cities ( -shi), five towns ( -chō or machi), and eight villages ( -son or -mura), each of which has a local government. The Tokyo Metropolitan Government administers the whole metropolis including the 23 special wards and the cities and towns that constitute the prefecture. It is headed by a publicly elected governor and metropolitan assembly. Its headquarters is in Shinjuku Ward.


Tokyo Nishitama District Area Map
Map of Nishi-Tama District in green
Map of Izu Islands
Map of the Izu Islands in black labels
Ogasawara islands
Map of the Ogasawara Islands in black labels

Since 2001, Tokyo consists of 62 municipalities: 23 special wards, 26 cities, 5 towns and 8 villages. Any municipality of Japan has a directly elected mayor and a directly elected assembly, each elected on independent four-year cycles. 23 of Tokyo's municipalities cover the area that had been Tokyo City until WWII, 30 remain today in the Tama area (former North Tama, West Tama and South Tama districts), 9 on Tokyo's outlying islands.

  • The special wards (特別区, tokubetsu-ku) of Tokyo comprise the area formerly incorporated as Tokyo City. The special wards use the word "city" in their official English name (e.g. Chiyoda City). The wards differ from other cities in having a unique administrative relationship with the prefectural government. Certain municipal functions, such as waterworks, sewerage, and fire-fighting, are handled by the Tokyo Metropolitan Government. To pay for the added administrative costs, the prefecture collects municipal taxes, which would usually be levied by the city. The "three central wards" of Tokyo – Chiyoda, Chūō and Minato – are the business core of the city, with a daytime population more than seven times higher than their nighttime population. Chiyoda Ward is unique in that it is in the very heart of the former Tokyo City, yet is one of the least populated wards. It is occupied by many major Japanese companies and is also the seat of the national government, and the Japanese emperor. It is often called the "political center" of the country. Akihabara, known for being an otaku cultural center and a shopping district for computer goods, is also in Chiyoda.
  • To the west of the special wards, Tokyo Metropolis consists of cities, towns, and villages that enjoy the same legal status as those elsewhere in Japan. While serving as "bed towns" for those working in central Tokyo, some of them also have a local commercial and industrial base, such as Tachikawa. Collectively, these are often known as the Tama area or Western Tokyo. The far west of the Tama area is occupied by the district (gun) of Nishi-Tama. Much of this area is mountainous and unsuitable for urbanization. The highest mountain in Tokyo, Mount Kumotori, is 2,017 m (6,617 ft) high; other mountains in Tokyo include Takanosu (1,737 m (5,699 ft)), Odake (1,266 m (4,154 ft)), and Mitake (929 m (3,048 ft)). Lake Okutama, on the Tama River near Yamanashi Prefecture, is Tokyo's largest lake. The district is composed of three towns (Hinode, Mizuho and Okutama) and one village (Hinohara). The Tokyo Metropolitan Government has designated Hachiōji, Tachikawa, Machida, Ōme and Tama New Town as regional centers of the Tama area, as part of its plans to relocate urban functions away from central Tokyo.
  • Tokyo has numerous outlying islands, which extend as far as 1,850 km (1,150 mi) from central Tokyo. Because of the islands' distance from the administrative headquarters of the Tokyo Metropolitan Government in Shinjuku, local subprefectural branch offices administer them. The Izu Islands are a group of volcanic islands and form part of the Fuji-Hakone-Izu National Park. The islands in order from closest to Tokyo are Izu Ōshima, Toshima, Nii-jima, Shikine-jima, Kōzu-shima, Miyake-jima, Mikurajima, Hachijō-jima, and Aogashima. The Izu Islands are grouped into three subprefectures. Izu Ōshima and Hachijojima are towns. The remaining islands are six villages, with Niijima and Shikinejima forming one village. The Ogasawara Islands include, from north to south, Chichi-jima, Nishinoshima, Haha-jima, Kita Iwo Jima, Iwo Jima, and Minami Iwo Jima. Ogasawara also administers two tiny outlying islands: Minami Torishima, the easternmost point in Japan and at 1,850 km (1,150 mi) the most distant island from central Tokyo, and Okinotorishima, the southernmost point in Japan. Japan's claim on an exclusive economic zone (EEZ) surrounding Okinotorishima is contested by China and South Korea as they regard Okinotorishima as uninhabitable rocks which have no EEZ. The Iwo chain and the outlying islands have no permanent population, but hosts Japan Self-Defense Forces personnel. Local populations are only found on Chichi-Jima and Haha-Jima. The islands form both Ogasawara Subprefecture and the village of Ogasawara, Tokyo.
Flag, name w/o suffix Full name District or
Area (km2) Population Map LPE code
(w/o checksum)
Japanese transcription translation
Flag of Adachi, Tokyo.svg Adachi 足立区 Adachi-ku Adachi Ward 53.25 674,067 Adachi-ku in Tokyo Prefecture Ja.svg 13121
Flag of Arakawa, Tokyo.svg Arakawa 荒川区 Arakawa-ku Arakawa Ward 10.16 213,648 Arakawa-ku in Tokyo Prefecture Ja.svg 13118
Flag of Bunkyo, Tokyo.svg Bunkyō 文京区 Bunkyō-ku Bunkyō Ward 11.29 223,389 Bunkyo-ku in Tokyo Prefecture Ja.svg 13105
Flag of Chiyoda, Tokyo.svg Chiyoda 千代田区 Chiyoda-ku Chiyoda Ward 11.66 59,441 Chiyoda-ku in Tokyo Prefecture Ja.svg 13101
Flag of Chuo, Tokyo.svg Chūō 中央区 Chūō-ku Chūō Ward
(Centre Ward)
10.21 147,620 Chuo-ku in Tokyo Prefecture Ja.svg 13102
Flag of Edogawa, Tokyo.svg Edogawa 江戸川区 Edogawa-ku Edogawa Ward
(Edo River Ward)
49.9 685,899 Edogawa-ku in Tokyo Prefecture Ja.svg 13123
Flag of Itabashi, Tokyo.svg Itabashi 板橋区 Itabashi-ku Itabashi Ward 32.22 569,225 Itabashi-ku in Tokyo Prefecture Ja.svg 13119
Flag of Katsushika-ku, Tokyo.svg Katsushika 葛飾区 Katsushika-ku Katsushika Ward
(after Katsushika District)
34.8 447,140 Location of Katsushika ward Tokyo Japan.svg 13122
Flag of Kita, Tokyo.svg Kita 北区 Kita-ku Kita Ward
(North Ward)
20.61 345,063 Kita-ku in Tokyo Prefecture Ja.svg 13117
Flag of Koto, Tokyo.svg Kōtō 江東区 Kōtō-ku Kōtō Ward 40.16 502,579 Koto-ku in Tokyo Prefecture Ja.svg 13108
Flag of Meguro, Tokyo.svg Meguro 目黒区 Meguro-ku Meguro Ward 14.67 280,283 Meguro-ku in Tokyo Prefecture Ja.svg 13110
Flag of Minato, Tokyo.svg Minato 港区 Minato-ku Minato Ward
(Harbour Ward)
20.37 248,071 Minato-ku in Tokyo Prefecture Ja.svg 13103
Flag of Nakano, Tokyo.svg Nakano 中野区 Nakano-ku Nakano Ward 15.59 332,902 Nakano-ku in Tokyo Prefecture Ja.svg 13114
Flag of Nerima, Tokyo.svg Nerima 練馬区 Nerima-ku Nerima Ward - 48.08 726,748 Location of Nerima ward Tokyo Japan.svg 13120
Flag of Ota, Tokyo.svg Ōta 大田区 Ōta-ku Ōta Ward 60.66 722,608 Ōta-ku in Tokyo Prefecture Ja.svg 13111
Flag of Setagaya, Tokyo.svg Setagaya 世田谷区 Setagaya-ku Setagaya Ward 58.05 910,868 Setagaya-ku in Tokyo Prefecture Ja.svg 13112
Flag of Shibuya, Tokyo.svg Shibuya 渋谷区 Shibuya-ku Shibuya Ward 15.11 227,850 Shibuya-ku in Tokyo Prefecture Ja.svg 13113
Flag of Shinagawa, Tokyo.svg Shinagawa 品川区 Shinagawa-ku Shinagawa Ward 22.84 392,492 Shinagawa-ku in Tokyo Prefecture Ja.svg 13109
Flag of Shinjuku, Tokyo.svg Shinjuku 新宿区 Shinjuku-ku Shinjuku Ward 18.22 339,211 Shinjuku-ku in Tokyo Prefecture Ja.svg 13104
Flag of Suginami, Tokyo.svg Suginami 杉並区 Suginami-ku Suginami Ward 34.06 570,483 Suginami-ku in Tokyo Prefecture Ja.svg 13115
Flag of Sumida, Tokyo.svg Sumida 墨田区 Sumida-ku Sumida Ward 13.77 260,358 Location of Sumida ward Tokyo Japan.svg 13107
Flag of Taito, Tokyo.svg Taitō 台東区 Taitō-ku Taitō Ward 10.11 200,486 Taitō-ku in Tokyo Prefecture Ja.svg 13106
Flag of Toshima, Tokyo.svg Toshima 豊島区 Toshima-ku Toshima Ward
(after Toshima District)
13.01 294,673 Toshima-ku in Tokyo Prefecture Ja.svg 13116
Flag of Akiruno, Tokyo.svg Akiruno あきる野市 Akiruno-shi Akiruno City 73.47 80,464 Akiruno in Tokyo Prefecture Ja.svg 13228
Flag of Akishima, Tokyo.svg Akishima 昭島市 Akishima-shi Akishima City 17.34 111,449 Akishima in Tokyo Prefecture Ja.svg 13207
Flag of Chofu, Tokyo.svg Chōfu 調布市 Chōfu-shi Chōfu City 21.58 240,668 Chofu in Tokyo Prefecture Ja.svg 13208
Flag of Fuchu, Tokyo.svg Fuchū 府中市 Fuchū-shi Fuchū City
(provincial capital city)
29.43 260,891 Fuchu in Tokyo Prefecture Ja.svg 13206
Flag of Fussa, Tokyo.svg Fussa 福生市 Fussa-shi Fussa City 10.16 58,393 Fussa in Tokyo Prefecture Ja.svg 13218
Flag of Hachioji, Tokyo.svg Hachiōji 八王子市 Hachiōji-shi Hachiōji City 186.38 579,330 Hachioji in Tokyo Prefecture Ja.svg 13201
Flag of Hamura, Tokyo.svg Hamura 羽村市 Hamura-shi Hamura City 9.9 55,596 Hamura in Tokyo Prefecture Ja.svg 13227
Flag of Higashikurume, Tokyo.svg Higashikurume 東久留米市 Higashi-Kurume-shi Higashi-Kurume City
East Kurume City
(as opposed to Kurume City, Western Japan)
12.88 116,869 Higashikurume in Tokyo Prefecture Ja.svg 13222
Flag of Higashimurayama, Tokyo.svg Higashimurayama 東村山市 Higashi-Murayama-shi Higashi-Murayama City
East Murayama City
(after Murayama Region)
17.14 150,984 Higashimurayama in Tokyo Prefecture Ja.svg 13213
Flag of Higashiyamato Tokyo.svg Higashiyamato 東大和市 Higashi-Yamato-shi Higashi-Yamato City
(here: Tokyo's Yamato City)
(as opposed to Kanagawa's Yamato City)
13.42 85,229 Higashiyamato in Tokyo Prefecture Ja.svg 13220
Flag of Hino, Tokyo.svg Hino 日野市 Hino-shi Hino City 27.55 185,133 Hino in Tokyo Prefecture Ja.svg 13212
Flag of Inagi, Tokyo.svg Inagi 稲城市 Inagi-shi Inagi City 17.97 87,927 Hino in Tokyo Prefecture Ja.svg 13225
Flag of Kiyose Tokyo.svg Kiyose 清瀬市 Kiyose-shi Kiyose City 10.23 74,495 Kiyose in Tokyo Prefecture Ja.svg 13221
Flag of Kodaira, Tokyo.svg Kodaira 小平市 Kodaira-shi Kodaira City 20.51 194,757 Kodaira in Tokyo Prefecture Ja.svg 13211
Flag of Koganei, Tokyo.svg Koganei 小金井市 Koganei-shi Koganei City 11.3 121,516 Koganei in Tokyo Prefecture Ja.svg 13210
Flag of Kokubunji, Tokyo.svg Kokubunji 国分寺市 Kokubunji-shi Kokubunji City
(provincial temple city)
11.46 122,787 Kokubunji in Tokyo Prefecture Ja.svg 13214
Flag of Komae, Tokyo.svg Komae 狛江市 Komae-shi Komae City 6.39 81,671 Komae in Tokyo Prefecture Ja.svg 13219
Flag of Kunitachi, Tokyo.svg Kunitachi 国立市 Kunitachi-shi Kunitachi City 8.15 75,867 Kunitachi in Tokyo Prefecture Ja.svg 13215
Flag of Machida, Tokyo.svg Machida 町田市 Machida-shi Machida City 71.8 429,040 Machida in Tokyo Prefecture Ja.svg 13209
Flag of Mitaka, Tokyo.svg Mitaka 三鷹市 Mitaka-shi Mitaka City 16.42 189,168 Mitaka in Tokyo Prefecture Ja.svg 13204
Flag of Musashimurayama, Tokyo.svg Musashimurayama 武蔵村山市 Musashi-Murayama-shi Musashi-Murayama City
(as opposed to Murayama City, Dewa Province)
15.32 70,649 Musashimurayama in Tokyo Prefecture Ja.svg 13223
Flag of Musashino, Tokyo.svg Musashino 武蔵野市 Musashino-shi Musashino City
(after Musashino Region)
- 10.98 143,686 Musashino in Tokyo Prefecture Ja.svg 13203
Flag of Nishitokyo, Tokyo.svg Nishitōkyō 西東京市 Nishi-Tōkyō-shi Nishi-Tokyo City
(West Tokyo City)
15.75 200,102 Nishitokyo in Tokyo Prefecture Ja.svg 13229
Flag of Ome, Tokyo.svg Ōme 青梅市 Ōme-shi Ōme City 103.31 136,071 Ome in Tokyo Prefecture Ja.svg 13205
Flag of Tachikawa, Tokyo.svg Tachikawa 立川市 Tachikawa-shi Tachikawa City 24.36 184,183 Tachikawa in Tokyo Prefecture Ja.svg 13202
Flag of Tama, Tokyo.svg Tama 多摩市 Tama-shi Tama City
(after Tama district/area/river)
21.01 147,953 Tama in Tokyo Prefecture Ja.svg 13224
Flag of Hinode, Tokyo.svg Hinode 日の出町 Hinode-machi Hinode Town Nishi-Tama
(West Tama)
28.07 17,141 Hinode in Tokyo Prefecture Ja.svg 13305
Flag of Hinohara, Tokyo.svg Hinohara 檜原村 Hinohara-mura Hinohara Village 105.41 2,194 Hinohara in Tokyo Prefecture Ja.svg 13307
Flag of Mizuho, Tokyo.svg Mizuho 瑞穂町 Mizuho-machi Mizuho Town 16.85 33,117 Mizuho in Tokyo Prefecture Ja.svg 13303
Flag of Okutama, Tokyo.svg Okutama 奥多摩町 Okutama-machi Okutama Town
(Rear/Outer Tama Town)
225.53 5,177 Okutama in Tokyo Prefecture Ja.svg 13308
Flag of Hachijo, Tokyo.svg Hachijō 八丈町 Hachijō-machi Hachijō Town
(on Hachijō Island)
Hachijō 72.23 7,516 Hachijo in Tokyo Prefecture Ja.svg 13401
Flag of Aogashima, Tokyo.svg Aogashima 青ヶ島村 Aogashima-mura Aogashima Village
(on Aogashima)
5.96 169 Aogashima in Tokyo Prefecture Ja.svg 13402
Flag of Miyake, Tokyo.svg Miyake 三宅村 Miyake-mura Miyake Village
(on Miyake Island)
Miyake 55.27 2,451 Kozushima Village in Tokyo Prefecture Ja.svg 13381
Flag of Mikurajima, Tokyo.svg Mikurajima 御蔵島村 Mikurajima-mura Mikurajima Village
(Mikura Island Village)
27.54 328 Mikurajima Village in Tokyo Prefecture Ja.svg 13382
Flag of Oshima, Tokyo.svg Ōshima 大島町 Ōshima-machi Ōshima Town
([Izu] Grand Island Town)
Ōshima 90.76 7,762 Oshima Town in Tokyo Prefecture Ja.svg 13361
Flag of Toshima Village, Tokyo.svg To-shima 利島村 Toshima-mura Toshima Village
(on homonymous island)
4.12 309 Toshima Village in Tokyo Prefecture Ja.svg 13362
Flag of Niijima, Tokyo.svg Niijima 新島村 Niijima-mura Niijima Village
(on homonymous island)
27.54 2,697 Niijima Village in Tokyo Prefecture Ja.svg 13363
Flag of Kozushima, Tokyo.svg Kōzushima 神津島村 Kōzushima-mura Kōzushima Village
(on homonymous island)
18.58 1,856 Kozushima Village in Tokyo Prefecture Ja.svg 13364
Flag of Ogasawara, Tokyo.svg Ogasawara 小笠原村 Ogasawara-mura Ogasawara Village
(on homonymous islands)
Ogasawara 104.41 3,029 Ogasawara Village in Tokyo Prefecture Ja.svg 13421
Flag of Tokyo Metropolis.svg Tokyo 東京都 Tōkyō-to Tokyo "Metropolis"
functionally: ~ Prefecture
literally/etymologically: ~ Capital
2,194.07 13,960,236 Tokyo Metropolis Map.svg 13000
ISO: JP-13

Municipal mergers

When Tokyo reached its current extent except for smaller border changes in 1893, it consisted of over 170 municipalities, 1 (by definition: district-independent) city, nine districts with their towns and villages, plus the island communities that had never part of ritsuryō districts. By 1953, the number of municipalities had dropped to 97. The current total of 62 was reached in 2001.

National parks

Ogasawara Islands, Tokyo, Japan
Ogasawara National Park, a UNESCO World Natural Heritage site

As of March 31, 2008, 36% of the total land area of the prefecture was designated as Natural Parks (second only to Shiga Prefecture), namely the Chichibu Tama Kai, Fuji-Hakone-Izu, and Ogasawara National Parks (the last a UNESCO World Heritage Site); Meiji no Mori Takao Quasi-National Park; and Akikawa Kyūryō, Hamura Kusabana Kyūryō, Sayama, Takao Jinba, Takiyama, and Tama Kyūryō Prefectural Natural Parks.

A number of museums are located in Ueno Park: Tokyo National Museum, National Museum of Nature and Science, Shitamachi Museum and National Museum for Western Art, among others. There are also artworks and statues at several places in the park. There is also a zoo in the park, and the park is a popular destination to view cherry blossoms.


Minor quakes

A bilingual sign with instructions (in Japanese and English) in case of an earthquake (Shibuya)

Tokyo is near the boundary of three plates, making it an extremely active region for smaller quakes and slippage which frequently affect the urban area with swaying as if in a boat, although epicenters within mainland Tokyo (excluding Tokyo's 2,000 km (1,243 mi)–long island jurisdiction) are quite rare. It is not uncommon in the metro area to have hundreds of these minor quakes (magnitudes 4–6) that can be felt in a single year, something local residents merely brush off but can be a source of anxiety not only for foreign visitors but for Japanese from elsewhere as well. They rarely cause much damage (sometimes a few injuries) as they are either too small or far away as quakes tend to dance around the region. Particularly active are offshore regions and to a lesser extent Chiba and Ibaraki.

Infrequent powerful quakes

Tokyo has been hit by powerful megathrust earthquakes in 1703, 1782, 1812, 1855, 1923, and much more indirectly (with some liquefaction in landfill zones) in 2011; the frequency of direct and large quakes is a relative rarity. The 1923 earthquake, with an estimated magnitude of 8.3, killed 142,000 people, the last time the urban area was directly hit. The 2011 quake focus was hundreds of kilometers away and resulted in no direct deaths in the metropolitan area.

Volcanic eruptions

Mount Fuji is about 100 km (62 mi) southwest of Tokyo. There is a low risk of eruption. The last recorded was the Hōei eruption which started on December 16, 1707 and ended about January 1, 1708 (16 days). During the Hōei eruption, the ash amount was 4 cm in southern Tokyo (bay area) and 2 cm to 0.5 cm in central Tokyo. Kanagawa had 16 cm to 8 cm ash and Saitama 0.5 to 0 cm. If the wind blows north-east it could send volcanic ash to Tokyo metropolis. According to the government, less than a millimeter of the volcanic ash from a Mt. Fuji eruption could cause power grid problems such as blackouts and stop trains in the Tokyo metropolitan area. A mixture of ash with rain could stick to cellphone antennas, power lines and cause temporary power outages. The affected areas would need to be evacuated.

Water management

Geofront Temple^ 首都圏外郭放水路 - panoramio
The MAOUDC is the world's largest underground diversion floodwater facility

Tokyo is located on the Kantō Plain with 5 river systems and dozens of rivers that expand during each season. Important rivers are Edogawa, Nakagawa, Arakawa, Kandagawa, Megurogawa and Tamagawa. In 1947 Typhoon Kathleen struck Tokyo, destroying 31,000 homes and killing 1,100 people. In 1958 Typhoon Ida inflicted 400mm rain in 1 week which flooded streets. In the 1950s and 1960s, the government invested 6–7% of the national budget on disaster and risk reduction. A huge system of dams, levees and tunnels was constructed. The purpose is to manage heavy rain, typhonic rain, and river floods. Tokyo has currently the world's largest underground floodwater diversion facility called the Metropolitan Area Outer Underground Discharge Channel (MAOUDC). It took 13 years to build and was completed in 2006. The MAOUDC is a 6.3 km long system of tunnels, 22 meters underground, with 70 meter tall cylindrical tanks, where each tank is large enough to fit a space shuttle or the Statue of Liberty. During floods, excess water is collected from rivers and drained to the Edo River. Low-lying areas of Kōtō, Edogawa, Sumida, Katsushika, Taitō and Arakawa near the Arakawa River are most at risk of flooding.


The former city of Tokyo and the majority of Tokyo prefecture lie in the humid subtropical climate zone (Köppen climate classification Cfa), with hot, humid summers and mild to cool winters with occasional cold spells. The region, like much of Japan, experiences a one-month seasonal lag, with the warmest month being August, which averages 26.4 °C (79.5 °F), and the coolest month being January, averaging 5.2 °C (41.4 °F). The record low temperature is −9.2 °C (15.4 °F) on January 13, 1876, while the record high is 39.5 °C (103.1 °F) on July 20, 2004. The record highest low temperature is 30.3 °C (86.5 °F) on August 12, 2013, making Tokyo one of only seven observation sites in Japan that have recorded a low temperature over 30 °C (86.0 °F). Annual rainfall averages nearly 1,530 millimeters (60.2 in), with a wetter summer and a drier winter. Snowfall is sporadic, but does occur almost annually. Tokyo also often sees typhoons every year, though few are strong. The wettest month since records began in 1876 was October 2004, with 780 millimeters (30 in) of rain, including 270.5 mm (10.65 in) on the ninth of that month; the last of four months on record to observe no precipitation is December 1995. Annual precipitation has ranged from 879.5 mm (34.63 in) in 1984 to 2,229.6 mm (87.78 in) in 1938.

Tokyo has experienced significant warming of its climate since temperature records began in 1876.

The western mountainous area of mainland Tokyo, Okutama also lies in the humid subtropical climate (Köppen classification Cfa).

The climates of Tokyo's offshore territories vary significantly from those of the city. The climate of Chichijima in Ogasawara village is on the boundary between the tropical savanna climate (Köppen classification Aw) and the tropical rainforest climate (Köppen classification Af). It is approximately 1,000 km (621 mi) south of the Greater Tokyo Area resulting in much different climatic conditions. Template:Chichijima weatherbox

Tokyo's easternmost territory, the island of Minamitorishima in Ogasawara village, is in the tropical savanna climate zone (Köppen classification Aw). Tokyo's Izu and Ogasawara islands are affected by an average of 5.4 typhoons a year, compared to 3.1 in mainland Kantō.


Architecture in Tokyo has largely been shaped by Tokyo's history. Twice in recent history has the metropolis been left in ruins: first in the 1923 Great Kantō earthquake and later after extensive firebombing in World War II. Because of this, Tokyo's urban landscape consists mainly of modern and contemporary architecture, and older buildings are scarce. Tokyo features many internationally famous forms of modern architecture including Tokyo International Forum, Asahi Beer Hall, Mode Gakuen Cocoon Tower, NTT Docomo Yoyogi Building and Rainbow Bridge. Tokyo also features two distinctive towers: Tokyo Tower, and the new Tokyo Skytree, which is the tallest tower in both Japan and the world, and the second tallest structure in the world after the Burj Khalifa in Dubai. Mori Building Co started work on Tokyo's new tallest building which is set to be finished in March 2023. The project will cost 580 billion yen ($5.5 billion).

Tokyo also contains numerous parks and gardens. There are four national parks in Tokyo Prefecture, including the Fuji-Hakone-Izu National Park, which includes all of the Izu Islands.

Panoramic view of Tokyo from Tokyo Skytree


Tokyo has enacted a measure to cut greenhouse gases. Governor Shintaro Ishihara created Japan's first emissions cap system, aiming to reduce greenhouse gas emission by a total of 25% by 2020 from the 2000 level. Tokyo is an example of an urban heat island, and the phenomenon is especially serious in its special wards. According to the Tokyo Metropolitan Government, the annual mean temperature has increased by about 3 °C (5.4 °F) over the past 100 years. Tokyo has been cited as a "convincing example of the relationship between urban growth and climate".

In 2006, Tokyo enacted the "10 Year Project for Green Tokyo" to be realized by 2016. It set a goal of increasing roadside trees in Tokyo to 1 million (from 480,000), and adding 1,000 ha of green space 88 of which will be a new park named "Umi no Mori" (sea forest) which will be on a reclaimed island in Tokyo Bay which used to be a landfill. From 2007 to 2010, 436 ha of the planned 1,000 ha of green space was created and 220,000 trees were planted bringing the total to 700,000. In 2014, road side trees in Tokyo have increased to 950,000, and a further 300 ha of green space has been added.


As of October 2012, the official intercensal estimate showed 13.506 million people in Tokyo with 9.214 million living within Tokyo's 23 wards. During the daytime, the population swells by over 2.5 million as workers and students commute from adjacent areas. This effect is even more pronounced in the three central wards of Chiyoda, Chūō, and Minato, whose collective population as of the 2005 National Census was 326,000 at night, but 2.4 million during the day.

In 1889, the Home Ministry recorded 1,375,937 people in Tokyo City and a total of 1,694,292 people in Tokyo-fu. In the same year, a total of 779 foreign nationals were recorded as residing in Tokyo. The most common nationality was English (209 residents), followed by American nationals (182) and Chinese nationals (137).

Tokyo historical population
Tokyo historical population since 1920
Registered foreign nationals
Nationality Population (2018)
 China 199,949
 South Korea 90,438
 Vietnam 32,334
 Philippines 32,089
   Nepal 26,157
 Taiwan 18,568
 USA 17,578
 India 11,153
 Myanmar 9,719
 Thailand 7,958
Others 75,557
Growth rate map of municipalities of Tokyo Metropolis, Japan
This chart is growth rate of municipalities of Tokyo, Japan. It is estimated by census carried out in 2005 and 2010.
Increase      10.0% and over      7.5–9.9%      5.0–7.4%      2.5–4.9%      0.0–2.4% Decrease      0.0–2.4%      2.5–4.9%      5.0–7.4%      7.5–9.9%      10.0% and over
Population of Tokyo
By area1

Special wards
Tama Area

12.79 million
8.653 million
4.109 million

By age2

Juveniles (age 0–14)
Working (age 15–64)
Retired (age 65+)

1.461 million (11.8%)
8.546 million (69.3%)
2.332 million (18.9%)

By hours3


14.978 million
12.416 million

By nationality

Foreign residents

364,6534 (2.9% of total)

1 Estimates as of October 1, 2007.

2 as of January 1, 2007.

3 as of 2005 National Census.

4 as of January 1, 2006.


Tokyo Skytree 2014 Ⅲ
Tokyo Skytree, the tallest tower in the world
Ginza Wako Clock
Ginza is a popular upscale shopping area in Tokyo.
Bank of Japan headquarters in Tokyo, Japan
Bank of Japan headquarters in Chuo, Tokyo
Tokyo Tower at night 8
Tokyo Tower at night
Shibuya crossing
Shibuya attracts many tourists.

Tokyo has the largest metropolitan economy in the world.

Tokyo is a major international finance center; it houses the headquarters of several of the world's largest investment banks and insurance companies, and serves as a hub for Japan's transportation, publishing, electronics and broadcasting industries.

Tokyo emerged as a leading international financial center (IFC) in the 1960s and has been described as one of the three "command centers" for the world economy, along with New York City and London.

Tokyo had 8,460 ha (20,900 acres) of agricultural land as of 2003, according to the Ministry of Agriculture, Forestry and Fisheries, placing it last among the nation's prefectures. The farmland is concentrated in Western Tokyo. Perishables such as vegetables, fruits, and flowers can be conveniently shipped to the markets in the eastern part of the prefecture. Komatsuna and spinach are the most important vegetables; as of 2000, Tokyo supplied 32.5% of the komatsuna sold at its central produce market.

With 36% of its area covered by forest, Tokyo has extensive growths of cryptomeria and Japanese cypress.

Tokyo Bay was once a major source of fish. Most of Tokyo's fish production comes from the outer islands, such as Izu Ōshima and Hachijō-Jima. Skipjack tuna, nori, and aji are among the ocean products.

Tourism in Tokyo is also a contributor to the economy. In 2006, 4.81 million foreigners and 420 million Japanese visited Tokyo; the economic value of these visits totaled 9.4 trillion yen according to the Tokyo Metropolitan Government.

The Toyosu Market in Tokyo is the largest wholesale fish and seafood market in the world since it opened on October 11, 2018. It is also one of the largest wholesale food markets of any kind. It is located in the Toyosu area of Kōtō ward. The Toyosu market holds strong to the traditions of its predecessor, the Tsukiji Fish Market and Nihonbashi fish market, and serves some 50,000 buyers and sellers every day. Retailers, whole-sellers, auctioneers, and public citizens alike frequent the market, creating a unique microcosm of organized chaos that still continues to fuel the city and its food supply after over four centuries.


Tokyo station from marunouchi oazo
Tokyo Station is the main intercity rail terminal in Tokyo.
10000x6300 01
Tokyo Metro and Toei Subway are two main subway operators in Tokyo.
Shuto expressway shibaura jct ii
Hamazakibashi JCT in Shuto Expressway

Tokyo, as the center of the Greater Tokyo Area, is Japan's largest domestic and international hub for rail and ground transportation. However, its airspace has been under the US military's exclusive control after World War II. Public transportation within Tokyo is dominated by an extensive network of clean and efficient trains and subways run by a variety of operators, with buses, monorails and trams playing a secondary feeder role. There are up to 62 electric train lines and more than 900 train stations in Tokyo. Shibuya Crossing is the "world's busiest pedestrian crossing", with around 3,000 people crossing at a time.

As a result of World War II, Japanese planes are generally forbidden to fly over Tokyo. Therefore, Japan constructed airports outside Tokyo. Narita International Airport in Chiba Prefecture is the major gateway for international travelers to Japan. Japan's flag carrier Japan Airlines, as well as All Nippon Airways, have a hub at this airport. Haneda Airport on the reclaimed land at Ōta, offers domestic and international flights. As of 2018, some flight routes into Haneda are permitted through Tokyo airspace.

Various islands governed by Tokyo have their own airports. Hachijō-jima (Hachijojima Airport), Miyakejima (Miyakejima Airport), and Izu Ōshima (Oshima Airport) have services to Tokyo International and other airports.

Rail is the primary mode of transportation in Tokyo, which has the most extensive urban railway network in the world and an equally extensive network of surface lines. JR East operates Tokyo's largest railway network, including the Yamanote Line loop that circles the center of downtown Tokyo. It operates rail lines in the entire metropolitan area of Tokyo and in the rest of the northeastern part of Honshu. JR East is also responsible for Shinkansen high-speed rail lines.

Two different organizations operate the subway network: the private Tokyo Metro and the governmental Tokyo Metropolitan Bureau of Transportation. The Metropolitan Government and private carriers operate bus routes and one tram route. Local, regional, and national services are available, with major terminals at the giant railroad stations, including Tokyo, Shinagawa, and Shinjuku.

Expressways link the capital to other points in the Greater Tokyo area, the Kantō region, and the islands of Kyushu and Shikoku. To build them quickly before the 1964 Summer Olympics, most were constructed above existing roads. Other transportation includes taxis operating in the special wards and the cities and towns. Also, long-distance ferries serve the islands of Tokyo and carry passengers and cargo to domestic and foreign ports.


Tokyo has many universities, junior colleges, and vocational schools. Many of Japan's most prestigious universities are in Tokyo, including University of Tokyo, Hitotsubashi University, Meiji University, Tokyo Institute of Technology, Waseda University, Tokyo University of Science, Sophia University, and Keio University. Some of the biggest national universities in Tokyo are:

  • Hitotsubashi University
  • National Graduate Institute for Policy Studies
  • Ochanomizu University
  • Tokyo Gakugei University
  • Tokyo Institute of Technology
  • Tokyo Medical and Dental University
  • Tokyo University of Agriculture and Technology
  • Tokyo University of Foreign Studies
  • Tokyo University of Marine Science and Technology
  • Tokyo University of the Arts
  • University of Electro-Communications
  • University of Tokyo

There is only one non-national public university: Tokyo Metropolitan University. There are also a few universities well known for classes conducted in English and for the teaching of the Japanese language, including the Globis University Graduate School of Management, International Christian University, Sophia University, and Waseda University

Tokyo is also the headquarters of the United Nations University.

Publicly run kindergartens, elementary schools (years 1 through 6), and primary schools (7 through 9) are operated by local wards or municipal offices. Public secondary schools in Tokyo are run by the Tokyo Metropolitan Government Board of Education and are called "Metropolitan High Schools". Tokyo also has many private schools from kindergarten through high school:


Takeshita Street in December 2018
Takeshita Street in Harajuku

Tokyo has many museums. In Ueno Park, there is the Tokyo National Museum, the country's largest museum and specializing in traditional Japanese art; the National Museum of Western Art and Ueno Zoo. Other museums include the National Museum of Emerging Science and Innovation in Odaiba; the Edo-Tokyo Museum in Sumida, across the Sumida River from the center of Tokyo; the Nezu Museum in Aoyama; and the National Diet Library, National Archives, and the National Museum of Modern Art, which are near the Imperial Palace.

Tokyo has many theaters for performing arts. These include national and private theaters for traditional forms of Japanese drama. Noteworthy are the National Noh Theatre for noh and the Kabuki-za for Kabuki. Symphony orchestras and other musical organizations perform modern and traditional music. The New National Theater Tokyo in Shibuya is the national center for the performing arts, including opera, ballet, contemporary dance and drama. Tokyo also hosts modern Japanese and international pop, and rock music at venues ranging in size from intimate clubs to internationally known areas such as the Nippon Budokan.

The Sanja Festival in Asakusa

Many different festivals occur throughout Tokyo. Major events include the Sannō at Hie Shrine, the Sanja at Asakusa Shrine, and the biennial Kanda Festivals. The last features a parade with elaborately decorated floats and thousands of people. Annually on the last Saturday of July, an enormous fireworks display over the Sumida River attracts over a million viewers. Once cherry blossoms bloom in spring, many residents gather in Ueno Park, Inokashira Park, and the Shinjuku Gyoen National Garden for picnics under the blossoms.

Harajuku, a neighborhood in Shibuya, is known internationally for its youth style, fashion and cosplay.

Cuisine in Tokyo is internationally acclaimed. In November 2007, Michelin released their first guide for fine dining in Tokyo, awarding 191 stars in total, or about twice as many as Tokyo's nearest competitor, Paris. As of 2017, 227 restaurants in Tokyo have been awarded (92 in Paris). Twelve establishments were awarded the maximum of three stars (Paris has 10), 54 received two stars, and 161 earned one star.


Ryogoku Kokugikan Tsuriyane 05212006
Ryōgoku Kokugikan sumo wrestling arena

Tokyo, with a diverse array of sports, is home to two professional baseball clubs, the Yomiuri Giants who play at the Tokyo Dome and Tokyo Yakult Swallows at Meiji-Jingu Stadium. The Japan Sumo Association is also headquartered in Tokyo at the Ryōgoku Kokugikan sumo arena where three official sumo tournaments are held annually (in January, May, and September). Football clubs in Tokyo include F.C. Tokyo and Tokyo Verdy 1969, both of which play at Ajinomoto Stadium in Chōfu, and FC Machida Zelvia at Nozuta Stadium in Machida. Basketball clubs include the Hitachi SunRockers, Toyota Alvark Tokyo and Tokyo Excellence.

Tokyo hosted the 1964 Summer Olympics, thus becoming the first Asian city to host the Summer Games. The National Stadium, also known as the Olympic Stadium, was host to a number of international sporting events. In 2016, it was to be replaced by the New National Stadium. With a number of world-class sports venues, Tokyo often hosts national and international sporting events such as basketball tournaments, women's volleyball tournaments, tennis tournaments, swim meets, marathons, rugby union and sevens rugby games, football, American football exhibition games, judo, and karate. Tokyo Metropolitan Gymnasium, in Sendagaya, Shibuya, is a large sports complex that includes swimming pools, training rooms, and a large indoor arena. According to Around the Rings, the gymnasium has played host to the October 2011 artistic gymnastics world championships, despite the International Gymnastics Federation's initial doubt in Tokyo's ability to host the championships following the March 11 tsunami. Tokyo was also selected to host a number of games for the 2019 Rugby World Cup, and to host the 2020 Summer Olympics and the Paralympics on September 7, 2013.

In popular culture

Akihabara Night
Akihabara is the most popular area for fans of anime, manga, and games.
Fuji TV headquarters and Aqua City Odaiba - 2006-05-03 edit
Fuji TV headquarters

As the largest population center in Japan and the site of the country's largest broadcasters and studios, Tokyo is frequently the setting for many Japanese movies, television shows, animated series (anime), web comics, light novels, video games, and comic books (manga). In the kaiju (monster movie) genre, landmarks of Tokyo are usually destroyed by giant monsters such as Godzilla and Gamera.

Some Hollywood directors have turned to Tokyo as a backdrop for movies set in Japan. Postwar examples include Tokyo Joe, Tokyo Story and the James Bond film You Only Live Twice; recent examples include The Fast and the Furious: Tokyo Drift, Lost in Translation, Inception, The Wolverine and Avengers: Endgame.

Japanese author Haruki Murakami has based some of his novels in Tokyo (including Norwegian Wood), and David Mitchell's first two novels number9dream and Ghostwritten featured the city. Contemporary British painter Carl Randall spent 10 years living in Tokyo as an artist, creating a body of work depicting the city's crowded streets and public spaces.

International relations

Tokyo is the founding member of the Asian Network of Major Cities 21 and is a member of the Council of Local Authorities for International Relations. Tokyo was also a founding member of the C40 Cities Climate Leadership Group.

Sister cities and states

As of 2021, Tokyo has twinning or friendship agreements with the following sixteen cities and states:

  • New York City, United States (since February 1960)
  • Madrid, Spain (since April 1965)
  • Beijing, China (since March 1979)
  • Paris, France (since July 1982)
  • Sydney, Australia (since May 1984)
  • Seoul, South Korea (since September 1988)
  • Metro Manila, Philippines (since August 1989)
  • Jakarta, Indonesia (since October 1989)
  • São Paulo State, Brazil (since June 1990)
  • Cairo, Egypt (since October 1990)
  • Moscow, Russia (since July 1991)
  • Berlin, Germany (since May 1994)
  • Rome, Italy (since July 1996)
  • Istanbul, Turkey (since March 1998)
  • Delhi, India (since April 2002)
  • London, United Kingdom (since October 2015)

Friendship and cooperation agreements

  • Russia Tomsk Oblast, Russia (since May 2015)
  • Brussels, Belgium (since October 2016)
  • Mumbai, India (since November 2016)
  • Los Angeles, United States (since July 2018)

International academic and scientific research

Research and development in Japan and the Japanese space program are globally represented by several of Tokyo's medical and scientific facilities, including the University of Tokyo and other universities in Tokyo, which work in collaboration with many international institutions. Especially with the United States, including NASA and the many private spaceflight companies, Tokyo universities have working relationships with all of the Ivy League institutions (including Harvard and Yale University), along with other research universities and development laboratories, such as Stanford, MIT, and the UC campuses throughout California, as well as UNM and Sandia National Laboratories in Albuquerque, New Mexico. Other partners worldwide include Oxford University in the United Kingdom, the National University of Singapore in Singapore, the University of Toronto in Canada, and Tsinghua University in China.

See also

Kids robot.svg In Spanish: Tokio para niños

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