Tokyo City in the context of "Yodobashi"

Tokyo, officially the Tokyo Metropolis, is the capital and most populous city in Japan. With a population of over 14 million in the city proper in 2023, it is one of the most populous urban areas in the world. The Greater Tokyo Area, which includes Tokyo and parts of six neighboring prefectures, is the most populous metropolitan area in the world, with 41 million residents as of 2024.

Lying at the head of Tokyo Bay, Tokyo is part of the Kantō region, on the central coast of Honshu, Japan's largest island. It is Japan's economic center and the seat of the Japanese government and the Emperor of Japan. The Tokyo Metropolitan Government administers Tokyo's central 23 special wards, which formerly made up Tokyo City; various commuter towns and suburbs in its western area; and two outlying island chains, the Tokyo Islands. Although most of the world recognizes Tokyo as a city, since 1943 its governing structure has been more akin to that of a prefecture, with an accompanying Governor and Assembly taking precedence over the smaller municipal governments that make up the metropolis. Special wards in Tokyo include Chiyoda, the site of the National Diet Building and the Tokyo Imperial Palace; Shinjuku, the city's administrative center; and Shibuya, a hub of commerce and business.

This is a list of cities in Japan sorted by prefecture and within prefecture by founding date. The list is also sortable by population, area, density and foundation date. Most large cities in Japan are cities designated by government ordinance. Some regionally important cities are designated as core cities. Tokyo is not included on this list, as the City of Tokyo ceased to exist on July 1, 1943. Tokyo now exists as a special metropolis prefecture (都, to), with 23 special wards (with the same status of city) making up the former boundaries of the former city in the eastern half of the prefecture.

The 23 special wards (特別区, tokubetsu-ku) of Tokyo are a unique form of municipality under Japan's 1947 Local Autonomy Law. They are city-level wards: primary subdivisions of a prefecture with municipal autonomy. Together, they cover 627 km (242 sq mi) and, as of 2024, house roughly 9.8 million residents, yielding a density of about 15,742 people/km (40,770 people/sq mi). Similar ward systems are legally possible in other prefectures, but none have been established.

Tokyo's 23 special wards unite with 39 ordinary municipalities (cities, towns and villages) to their west to form Tokyo Metropolitan Prefecture. Without the ordinary municipalities the special wards account for what was the core Tokyo City, before this was abolished in 1943 under the Tōjō Cabinet. It was four years later, during the Occupation of Japan, that autonomy was restored to Tokyo City by means of the special wards, each being given a directly elected mayor and assembly like all other cities, towns and villages in Japan.

The governor of Tokyo (東京都知事, Tōkyō-To Chiji) is the head of government of Tokyo.

In 1943, upon the unification of Tokyo City and Tokyo Prefecture into Tokyo Metropolitan Government, the position of Governor was created. Previously, the prefecture had a Governor while the City had a Mayor. The current title was adopted in 1947 due to the enactment of the Local Autonomy Law.

A ward (区, ku) is a subdivision of the cities of Japan that are large enough to have been designated by government ordinance. Wards are used to subdivide each city designated by government ordinance ("designated city"). The 23 special wards of Tokyo Metropolis have a municipal status, and are not the same as other entities referred to as ku, although their predecessors were.

Wards are local entities directly controlled by the municipal government. They handle administrative functions such as koseki registration, health insurance, and property taxation. Many wards have affiliated residents' organizations for a number of tasks, although these do not have any legal authority.

Ushigome (牛込) is a neighborhood in Shinjuku, Tokyo, and a former ward (牛込区 Ushigome-ku) in the now-defunct Tokyo City. The name Ushigome refers to a former cattle ranch in the area that was next to a horse ranch, Komagome (駒込). In 1947, when the 35 wards of Tokyo were reorganized into 23, it was merged with Yotsuya ward of Tokyo City and Yodobashi suburban ward of Tokyo-fu to form the modern Shinjuku ward.