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Kōtō City
Great Harumi Bridge in Kōtō
Great Harumi Bridge in Kōtō
Flag of Kōtō
Official seal of Kōtō
Location of Kōtō in Tokyo
Location of Kōtō in Tokyo
Kōtō is located in Japan
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
 • MayorTakaaki Yamazaki[1]
 • Total40.16 km2 (15.51 sq mi)
 (October 1, 2020[2])
 • Total524,310
 • Density13,055/km2 (33,810/sq mi)
Time zoneUTC+09:00 (JST)
City hall address東陽4-11-28

Kōtō (江東区, Kōtō-ku) is a special ward located in Tokyo Metropolis, Japan. The ward refers to itself as Kōtō City in English. As of May 1, 2015, the ward has an estimated population of 488,632, and a population density of 12,170 persons per km². The total area is approximately 40.16 km².

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


"Kōtō" (江東) means "East [of the] River" in Japanese. The (東) in Kōtō means "East" and is the same character as the in Tokyo (東京).


Kōtō occupies a position on the waterfront of Tokyo Bay sandwiched between the wards of Chūō and Edogawa. To the North, its inland boundary is with the Sumida special ward. Much of the land is reclaimed, The northern part is old reclaimed land, and the elevation is very low(below sea level. The southern part is relatively new, but 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.


There are 45 districts in Koto:[3]

Map of Kōtō and its districts




  • 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)



Companies with headquarters in Koto include Daimaru Matsuzakaya Department Stores,[4] Ibex Airlines,[5] Fujikura,[6] and Maruha Nichiro.[7]

Sony operates the Ariake Business Center in Kōtō.[8] The broadcasting center of WOWOW is in Koto.[9][10]

Seta Corporation was headquartered in Kōtō.[11]


The main city office for Kōtō City

The main city office for Kōtō City is located in Toyo. There are branch offices located in Shirakawa, Tomioka, Toyosu, Komatsubashi, Kameido, Ojima, Sunamachi and Minamisuna.[12]

Notable places[edit]


Colleges and universities[edit]

Primary and secondary schools[edit]

Public high schools are operated by the Tokyo Metropolitan Government Board of Education.

Public elementary and middle schools are operated by the Koto City Board of Education.

Combined junior and senior high schools:[13]

Junior high schools:[14]

Elementary schools:[15]

  • No. 1 Kameido Elementary School (第一亀戸小学校)
  • No. 1 Ojima Elementary School (第一大島小学校)
  • No. 2 Kameido Elementary School (第二亀戸小学校)
  • No. 2 Ojima Elementary School (第二大島小学校)
  • No. 2 Sunamachi Elementary School (第二砂町小学校)
  • No. 2 Tatsumi Elementary School (第二辰巳小学校)
  • No. 3 Ojima Elementary School (第三大島小学校)
  • No. 3 Sunamachi Elementary School (第三砂町小学校)
  • No. 4 Ojima Elementary School (第四大島小学校)
  • No. 4 Sunamachi Elementary School (第四砂町小学校)
  • No. 5 Ojima Elementary School (第五大島小学校)
  • No. 5 Sunamachi Elementary School (第五砂町小学校)
  • No. 6 Sunamachi Elementary School (第六砂町小学校)
  • No. 7 Sunamachi Elementary School (第七砂町小学校)
  • Ariake Elementary School (有明小学校)
  • Edagawa Elementary School (枝川小学校)
  • Etchujima Elementary School (越中島小学校)
  • Fukagawa Elementary School (深川小学校)
  • Heikyu Elementary School (平久小学校)
  • Higashisuna Elementary School (東砂小学校)
  • Kametaka Elementary School (亀高小学校)
  • Katori Elementary School (香取小学校)
  • Kazuya Elementary School (数矢小学校)
  • Kitasuna Elementary School (北砂小学校)
  • Meiji Elementary School (明治小学校)
  • Minamisuna Elementary School (南砂小学校)
  • Mori Elementary School (毛利小学校)
  • Motogaka Elementary School (元加賀小学校)
  • Nanyo Elementary School (南陽小学校)
  • Ogibashi Elementary School (扇橋小学校)
  • Ojima Nan'o Elementary School (大島南央小学校)
  • Onagigawa Elementary School (小名木川小学校)
  • Rinkai Elementary School (臨海小学校)
  • Sengen Tatekawa Elementary School (浅間竪川小学校)
  • Sennan Elementary School (川南小学校)
  • Shinonome Elementary School (東雲小学校)
  • Suijin Elementary School (水神小学校)
  • Sunamachi Elementary School (砂町小学校)
  • Tatsumi Elementary School (辰巳小学校)
  • Tosen Elementary School (東川小学校)
  • Toyo Elementary School (東陽小学校)
  • Toyosu Elementary School (豊洲小学校)
  • Toyosu Kita Elementary School (豊洲北小学校)
  • Toyosu Nishi Elementary School (豊洲西小学校)
  • Yanagawa Elementary School (八名川小学校)

Private schools:

International schools[edit]

International schools are independently owned and operated.

International relations[edit]

As of April 20, 1989, Kōtō became the Sister City of Surrey, British Columbia, Canada.[17]

Notable people from Kōtō[edit]


  1. ^ 平成27年市長選挙結果. Retrieved August 30, 2015.[permanent dead link]
  2. ^ "Population by District". Tokyo Statistical Yearbook. Retrieved July 15, 2022.
  3. ^ 江東区の地理と地名. Archived from the original on April 18, 2015. Retrieved April 28, 2015.
  4. ^ "会社概要・役員." Daimaru Matsuzakaya Department Stores. Retrieved on December 15, 2010. "本店所在地 東京都江東区木場二丁目18番11号."
  5. ^ "Corporate Profile Archived 2009-05-27 at the Wayback Machine." Ibex Airlines. Retrieved on May 20, 2009.
  6. ^ " Corporate Profile Archived 2014-05-02 at the Wayback Machine." Fujikura. Retrieved on June 17, 2014.
  7. ^ "Corporate Data Archived 2017-08-07 at the Wayback Machine." Maruha Nichiro. Retrieved on April 4, 2014.
  8. ^ "Access & Map." Sony. Retrieved on January 19, 2009.
  9. ^ "Corporate Info." WOWOW. Retrieved on November 20, 2010. "2-1-58, Tatsumi, Koto-ku, Tokyo 135-0053" Addresses in Japanese: "東京都江東区辰巳2-1-58"
  10. ^ "Broadcasting Center." (Direct image link) WOWOW. Retrieved on November 20, 2010. Map in Japanese (Direct link)
  11. ^ "Corporation Data." Seta Corporation. February 6, 2007. Retrieved on April 24, 2009.
  12. ^ Koto City webpage Koto City/English/Koto City Office Guide Archived November 11, 2014, at the Wayback Machine Retrieved November 21, 2014
  13. ^ "区立義務教育学校". Koto City. Retrieved November 25, 2022.
  14. ^ "区立中学校". Koto City. Retrieved November 25, 2022.
  15. ^ "区立小学校". Koto City. Retrieved November 25, 2022.
  16. ^ ウリハッキョ一覧. Archived from the original on December 19, 2015. Retrieved October 14, 2015. 東京朝鮮第二初級学校 135-0051 東京都江東区枝川1-11-26" ().
  17. ^ "Sister & Friendship Cities". City of Surrey. Archived from the original on August 6, 2013.

External links[edit]