Special ward
江東区 · Kōtō City

Great Harumi Bridge in Kōtō

Tokyo Metropolis
Location in Japan

Coordinates: 35°40′N 139°49′E / 35.667°N 139.817°E / 35.667; 139.817Coordinates: 35°40′N 139°49′E / 35.667°N 139.817°E / 35.667; 139.817

Country Japan
Region Kantō
Prefecture Tokyo Metropolis
 • Total 39.48 km2 (15.24 sq mi)
Population (2008)
 • Total 442,271
 • Density 11,070/km2 (28,700/sq mi)
Time zone Japan Standard Time (UTC+9)

Kōtō (江東区 Kōtō-ku?, "East of River") is a special ward located in Tokyo Metropolis, Japan. The ward refers to itself as Kōtō City in English.

As of 2008, the ward has an estimated population of 442,271 and a population density of 11,070 persons per km². The total area is 39.48 km².

Kōtō is located east of the Tokyo metropolitan center, bounded by the Sumida-gawa to the west and the Arakawa River to the east. Its major districts include Kameido, Kiba, Kiyosumi, Monzen-nakachō, Shirakawa, and Toyosu. The newly developed waterfront area of Ariake is in Kōtō, as is part of Odaiba.


Kōtō occupies a position on the waterfront of Tokyo Bay sandwiched between the wards of Chūō and Edogawa. Its inland boundary is with Sumida. Much of the land is reclaimed, so there are few old temples or shrines.

Noteworthy places in Kōtō include:

  • In the former ward of Fukagawa: Kiba, Fukagawa, Edagawa
  • In the former ward of Jōtō: Kameido, Ōjima, Sunamachi
  • On recently reclaimed land: Ariake, Yumenoshima, Tokyo Rinkai Fukutoshin


The western part of the ward was formerly part of Fukagawa Ward of Tokyo City. It suffered severe damage in the 1923 Great Kantō earthquake, and was heavily bombed during World War II.

The special ward was founded on March 15, 1947 by the merger of the wards of Fukagawa and Jōtō.




  • Shuto Expressway
    • C2 Central Loop (Itabashi JCT - Kasai JCT)
    • No.7 Komatsugawa Route (Ryogoku JCT - Yagochi)
    • No.9 Fukagawa Route (Hakozaki JCT - Tatsumi JCT)
    • B Bayshore Route (Kawasaki-ukishima JCT - Koya)



Daimaru Matsuzakaya Department Stores has its headquarters in the ward.[1] Ibex Airlines is headquartered in the ward.[2]

Sony operates the Ariake Business Center in Kōtō.[3] The broadcasting center of WOWOW is in Koto.[4][5]

Seta Corporation was headquartered in Kōtō.[6]

Notable places


Colleges and universities

Primary and secondary schools

Public elementary and middle schools are operated by the Koto City Board of Education. Public high schools are operated by the Tokyo Metropolitan Government Board of Education.

  • Daisan Commercial High School
  • Fukagawa High School
  • Higashi High School
  • High School of Science and Technology
  • Johtoh High School
  • Koto Commercial High School
  • Oedo High School
  • Sumida Technical High School

International schools

International schools are independently owned and operated.

  • K. International School Tokyo
  • India International School in Japan

International relations

As of April 20, 1989, Kōtō became the Sister City of Surrey, British Columbia, Canada.


External links

Tokyo portal
  • (Japanese)
  • (English)