Found 249 km southeast from Saskatoon, the RM of Lumsden No. 189 has a population of 1,938 and has a population density of 2.4/km². The RM is home to the towns of Lumsden and Regina Beach, the villages of Buena Vista, Craven, and Disley, the hamlet of Deer Valley, and the resort village of Lumsden Beach.