Rural Municipality of Elfros No. 307  The Rural Municipality of Elfros No. 307 (2016 population: ) is a rural municipality (RM) in the Canadian province of Saskatchewan within Census Division No. 10 and Division No. 4. It is located in the east-central portion of the province. The RM of Elfros No. 307 incorporated as a rural municipality on December 13, 1909. The following urban municipalities are surrounded by the RM. The following unincorporated communities are within the RM. In the 2016 Census of Population conducted by Statistics Canada, the RM of Elfros No. 307 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. In the 2011 Census of Population, the RM of Elfros No. 307 recorded a population of , a change from its 2006 population of . With a land area of , it had a population density of in 2011. The RM of Elfros No. 307 is governed by an elected municipal council and an appointed administrator that meets on the second Wednesday of every month. The reeve of the RM is Michael Yaskowich while its administrator is Krista Park. The RM's office is located in Elfros.