Main Page | See live article | Alphabetical index Arakawa (荒川区; -ku) is a special ward located in Tokyo, Japan. As of 2003, the ward has an estimated population of 186,275 and the density of 18,262.25 persons per km². The total area is 10.20 km². The ward was founded on March 15, 1947. External Links Official website in Japanese\n This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.