Shizukuishi is a town located in Iwate Prefecture, Japan. As of 31 March 2020, the town had an estimated population of 16,263 in 6354 households, and a population density of 27 persons per km2. The total area of the town is 608.82 square kilometres (235.07 sq mi).

Iwate Prefecture is a prefecture of Japan located in the Tōhoku region of Honshu. It is the second-largest Japanese prefecture at 15,275 square kilometres (5,898 sq mi), with a population of 1,165,886. Iwate Prefecture borders Aomori Prefecture to the north, Akita Prefecture to the west, and Miyagi Prefecture to the south.