Shibukawa is a city in Gunma Prefecture, Japan. As of 31 August 2020, the city had an estimated population of 76,098 in 32,439 households, and a population density of 320 inhabitants per square kilometre (830/sq mi). The total area of the city is 240.27 square kilometres (92.77 sq mi). Shibukawa is the location of Ikaho Onsen, a popular hot spring resort.

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.