Yūki (結城郡) is a district located in Ibaraki Prefecture, Japan. As at May, 2008, the district had an estimated Population of 23,388 and a Density of 396 persons/km2. The total area is 59.1 km2. The district contains one town, [[Yachiyo, Ibaraki (Yachiyo]]) Administrative changes On April 1, 1889, due to the municipal status enforcement, the town of Yūki and the villages of Kinugawa, Egawa, Kamiyamakawa, Yamakawa, Nasaki, Nakayūki, and Shimoyūki were formed within Yūki District. On April 1, 1896, …