Kamagaya (鎌ヶ谷市, Kamagaya-shi) is a city located in Chiba Prefecture, Japan. As of 1 December 2020[update], the city had an estimated population of 109,941 living in 50,485 households and a population density of 5,200 persons per km2.[1] The total area of the city is 21.08 km2 (8.14 sq mi). Kamagaya is located in the northwestern corner of Chiba Prefecture,[2] approximately 20 kilometers from the prefectural capital of Chiba. It is located on the Shimōsa Plateau, with an elevation of seven to thirty meters above sea level. The Otsu River, which flows into Lake Teganuma, is in the north, and the Okashiwa and Nego Rivers, and the tributaries of the Ebi River, flow into Tokyo Bay, to the south. The 140th east meridian line runs through the center of the city. Chiba Prefecture