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;
Sumida River Ryosai I and his son Inoue Ryosai II. In the late 1890s, Ryosai I developed a style of applied figures on a surface with flowing glaze, based on Chinese glazes called "flambe." Sumida pieces could be teapots, ash trays, or vases, and were made for export to the West. Inoue Ryosai III, grandson of Ryosai I, moved the manufacturing site to Yokohama in 1924, but the pieces continued to be identified as Sumida ware. The pottery has been subject to various myths, such as being manufactured on the make-believe island of Poo, which was washed away by a typhoon, or