Kasai District, Hokkaidō
Kasai (河西郡 Kasai-gun?) is a district located in Tokachi Subprefecture, Hokkaido, Japan.
As of 2004, the district has an estimated population of 25,474 and a density of 25.91 persons per km². The total area is 983.05 km².
Coordinates: 42°46′52″N 142°55′48″E / 42.781°N 142.93°E
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