Katsushika (葛飾区, Katsushika-ku) is a special ward located in Tokyo, Japan. It lies in the northeast of the ward area. The ward calls itself Katsushika City in English. As of June 1, 2012, the ward has an estimated population of 448,243, with 217,339 households and a population density of 12,865.76 people per km². The total area is 34.84 km². Katsushika Ward is at the east end of Tokyo Metropolis. It is on an alluvial plain and it is low above sea level. The ward office (Katsushika city hall) is located at Tateishi.