Setagaya (世田谷区, Setagaya-ku?) is one of the 23 special wards of Tokyo in Japan. It is also the name of a neighborhood within the ward. The ward calls itself the City of Setagaya in English. Its official bird is the Azure-winged Magpie, its flower the Fringed Orchid, and its tree the Zelkova serrata.
It has the largest population and second largest area (after Ōta) of Tokyo's 23 special wards.
Setagaya sits at the southwestern corner of the 23 special wards. The Tama River separates it from Kanagawa Prefecture. Many railroads extend radially from the center of Tokyo, passing through Setagaya.
Most of the land is in the Musashino tableland. The parts along the Tama River to the south are comparatively low-lying.
The population of Setagaya is among the highest in Tokyo, and there are many residential neighborhoods.
The ward is divided into five districts. These are Setagaya, Kitazawa, Tamagawa, Kinuta and Karasuyama. Each area has own office as a part of administrative structure.
The special ward of Setagaya was founded on March 15, 1947.
Tokyo (東京, Tōkyō?, "Eastern Capital") [toːkʲoː], English /ˈtoʊki.oʊ/; officially Tokyo Metropolis (東京都, Tōkyō-to?), is one of the 47 prefectures of Japan. Tokyo is the capital of Japan, the center of the Greater Tokyo Area, and the largest metropolitan area of the world. It is the seat of the Japanese government and the Imperial Palace, and the home of the Japanese Imperial Family. Tokyo is in the Kantō region on the southeastern side of the main island Honshu and includes the Izu Islands and Ogasawara Islands. Tokyo Metropolis was formed in 1943 from the merger of the former Tokyo Prefecture (東京府, Tōkyō-fu?) and the city of Tokyo (東京市, Tōkyō-shi?).
The Tokyo Metropolitan government administers the 23 special wards of Tokyo (each governed as a city), which cover the area that was the city of Tokyo, as well as 39 municipalities in the western part of the prefecture and the two outlying island chains. The population of the special wards is over 8 million people, with the total population of the prefecture exceeding 13 million. The prefecture is part of the world's most populous metropolitan area with upwards of 35 million people and the world's largest urban agglomeration economy with a GDP of US$1.479 trillion at purchasing power parity in 2008, ahead of New York City metropolitan area, which ranks second on the list. The city hosts 47 of the Fortune Global 500 companies, the highest amount of any city.