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;
Arakawa River (Fukushima) Arakawa River (Fukushima) The is a river in Fukushima, Fukushima, Japan. The Arakawa River originates from the Azuma Mountain Range and flows eastward into the western part of the Fukushima Basin, joining with other smaller rivers from Mt. Issaikyō, Mt. Higashi-Azuma, and Mt. Tetsu along the way. It eventually terminates into the Abukuma River in the Ogura area of Fukushima City. There are many recreational facilities that line the coast of the Arakawa River as it flows through Fukushima City, including the Mizubayashi Recreational Woods, Sakura Zutsumi Riverside Park, and the Arakawa Exercise Park, among other recreational and park areas.