Kuzumaki is a town located in Iwate Prefecture, Japan. As of 1 January 2020, the town had an estimated population of 5,632, and a population density of 13 persons per km2. The total area of the town is 434.96 square kilometres (167.94 sq mi). The town uses many alternative energy sources, producing a surplus of energy, including wind power and biomass.

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.