Tokyo - Geography and Administrative Divisions

Geography and Administrative Divisions

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.

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 away from the mainland. Because of these islands and mountainous regions to the west, Tokyo's overall population density figures far underrepresent the real figures for urban and suburban regions of Tokyo.

Under Japanese law, Tokyo is designated as a to (都), translated as metropolis. Its administrative structure is similar to that of Japan's other prefectures. Within Tokyo lie dozens of smaller entities, including many cities, the 23 special wards, districts, towns, villages, a quasi-national park, and a national park. The 23 special wards (特別区 -ku), which until 1943 constituted the city of Tokyo, are now separate, 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 (市 -shi), five towns (町 -chō or machi), and eight villages (村 -son or -mura), each of which has a local government. The Tokyo Metropolitan Government is headed by a publicly elected governor and metropolitan assembly. Its headquarters are in the ward of Shinjuku. They govern all of Tokyo, including lakes, rivers, dams, farms, remote islands, and national parks in addition to its neon jungles, skyscrapers and crowded subways.