Kasumigaura, Ibaraki

Kasumigaura (かすみがうら市, Kasumigaura-shi) is a city located in Ibaraki Prefecture, Japan. As of 1 July 2020, the city had an estimated population of 40,254 in 15,839 households and a population density of 257 persons per km². The percentage of the population aged over 65 was 32.0%. The total area of the city is 156.60 square kilometres (60.46 sq mi). . The city takes its name from the nearby lake, Lake Kasumigaura. The city has the distinction of having the longest name in Japan (in terms of the number of characters used), together with Ichikikushikino, Kagoshima Prefecture and Tsukubamirai. Much of the city is within the borders of the Suigō-Tsukuba Quasi-National Park.