Higashiagatsuma is a town located in Gunma Prefecture, Japan. As of 31 July 2020, the town had an estimated population of 13,349 in 2467 households, and a population density of 53 persons per km2. The total area of the town is 253.91 square kilometres (98.04 sq mi).

Gunma Prefecture is a landlocked prefecture of Japan located in the Kantō region of Honshu. Gunma Prefecture has a population of 1,937,626 and has a geographic area of 6,362 km2. Gunma Prefecture borders Niigata Prefecture and Fukushima Prefecture to the north, Nagano Prefecture to the southwest, Saitama Prefecture to the south, and Tochigi Prefecture to the east.