Bengough No. 40 (2006 Population 337) is a rural municipality in south-east Saskatchewan, Canada encompassing 1,036.91 square kilometers in area. The rural municipality has within its boundaries the un-incorporated communities of Harptree, and Horizon. The rural municipality maintains its office in Bengough, Saskatchewan. The rural municipality in conjunction with the provincial government is in charge of maintenance of highways in its area. As well, the municipality provides policing, fire protection and municipal governance for the rural district, with a reeve as its administrator.