Sumida, Tokyo southeast; Taitō to the west; Chūō to the southwest; and Kōtō to the south. The ward was founded on March 15, 1947. It was previously the (ordinary) wards Honjo and Mukojima. Mukojima, formed in 1932, contained the former town of Sumida, which along with the river gave the ward its name. As of 2005, the mayor is Noboru Yamazaki. The council consists of 34 members. Public elementary and middle schools are operated by Sumida. Public high schools are operated by the Tokyo Metropolitan Government Board of Education. In addition, the metropolitan school district also operates a metropolitan junior high school:
Japanese gunboat Sumida (1939) commissioned into the Republic of China Navy as the "Chiang Hsi" (). She was removed from the Japanese navy list on 3 May 1947. Captured during the Chinese Civil War by the People’s Republic of China, she was commissioned into the People's Liberation Army Navy on 30 November 1949 as the gunboat "Fu Jiang" (). She was finally scrapped in the 1960s. Japanese gunboat Sumida (1939) "Sumida" was the second of two vessels in the river gunboats authorized under the 3rd Naval Armaments Supplement Programme of 1937. "Sumida" had a hull with an overall length of and width of ,