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;
Yamanote and Shitamachi certain "conflation" of the two terms, and those born in Shitamachi are typically considered true Edokko, children of Edo. This conflation is evident in the Edo period habit of saying "I am going to Edo" to mean going from the area around Fukagawa in Kōtō ward to anywhere east of the Sumida river. While the Yamanote grew west on the Musashino Plateau, in time the Shitamachi expanded east beyond the Arakawa river, and now includes the Chūō, Kōtō(Fukagawa), Sumida, and Taitō wards, plus part of Chiyoda ward. The center of Ueno in Taitō lies at the heart of the old