Oiwake, HokkaidoOiwake was a town located in Yūfutsu (Iburi) District, Iburi Subprefecture, Hokkaido, Japan.PopulationAs of 2005, the town had an estimated population of 3,981 and a density of 48.24 persons per km2. The total area was 82.52 km2.MergeOn March 27, 2006, Oiwake was merged with the town of Hayakita to create the new town of Abira.