Shimokawa is a town located in Kamikawa Subprefecture, Hokkaido, Japan. As of 1 February 2025, the town had an estimated population of 2,832 in 1599 households, and a population density of 4.4 people

Kamikawa is a subprefecture of Hokkaido Prefecture, Japan. The name is derived from Kamikawa no hitobito no Shūraku, a translation of the Ainu Peni Unguri Kotan. Settlement began in 1867. The sub-pref