The Rural Municipality of Blaine Lake No. 434 (2016 population: ) is a rural municipality (RM) in the Canadian province of Saskatchewan within Census Division No. 16 and Division No. 5. The RM extends east to the North Saskatchewan River and north to the Village of Marcelin. History The RM of Blaine Lake No. 434 incorporated as a rural municipality on December 9, 1912. The story of Sgt John Wilson: One of Canada's most sensational murders took place close to Blaine Lake in 1917. The only Royal Canadian Mounted Police officer ever to be hanged for murder, Sgt John Wilson killed his wife, Polly Wilson, and his unborn child, to marry Jessie Patterson of Blaine Lake. They wed two days after his wife's murder. Polly Wilson had traveled to Canada from Scotland, leaving behind two children, and was pregnant with a third when she was killed. Her body was discovered in a culvert near Waldheim. Geography Communities and localities The following urban municipalities are surrounded by the RM. Towns Blaine Lake Villages Marcelin Demographics In the 2021 Census of Population conducted by Statistics Canada, the RM of Blaine Lake No. 434 had a population of living in of its total private dwellings, a change of from its 2016 population of . With a land area of , it had a population density of in 2021. In the 2016 Census of Population, the RM of Blaine Lake No. 434 recorded a population of living in of its total private dwellings, a change from its 2011 population of . With a land area of , it had a population density of in 2016. Government The RM of Blaine Lake No. 434 is governed by an elected municipal council and an appointed administrator that meets on the second Tuesday of every month. The reeve of the RM is William Chalmers while its administrator is Jennifer Gutknecht. The RM's office is located in Blaine Lake. References B Division No. 16, Saskatchewan