Ōgawara is a town located in Miyagi Prefecture, Japan. As of 31 March 2020, the town had an estimated population of 23,618, and a population density of 950persons per km² in 9,925 households. The total area of the town is 24.99 square kilometres (9.65 sq mi).

Miyagi Prefecture is a prefecture of Japan located in the Tōhoku region of Honshu. Miyagi Prefecture has a population of 2,265,724 and has a geographic area of 7,282 km2 (2,812 sq mi). Miyagi Prefecture borders Iwate Prefecture to the north, Akita Prefecture to the northwest, Yamagata Prefecture to the west, and Fukushima Prefecture to the south.