Arakawa, Tokyo Arakawa, Tokyo Arakawa has sister-city relationships with Donaustadt in Vienna, Austria, and with Corvallis, Oregon, U.S. Domestically, it has similar relationships with nine cities, towns and villages. As of May 1, 2015, the ward has an estimated population of 208,763, and a population density of about 20,550 persons per km². The total area is 10.16 km². Arakawa is in the northeastern part of Tokyo. The shape is long and narrow, stretching from west to east. The Sumida River forms the northern boundary. The ward is surrounded by five other special wards. To the north lies Adachi; to the west, Kita;
Japanese gunboat Sumida (1939) damaged the same day in an air raid, which killed her captain and 11 crewmen. After repairs at Shanghai, she was again assigned to patrols of the lower Yangtze from 19 August 1942, and the middle Yangtze from 1 September 1943. On 22 June 1944, a flight of twenty USAAF B-24 Liberators attached to the Fourteenth Air Force bombed the docks at Hankou, damaging " Sumida" and killing eight crewmen. She was again damaged in another air raid on 25 November. After the surrender of Japan, "Sumida" was given to the Republic of China as a prize of war, and