The Rural Municipality of Garden River No. 490 (2016 population: ) is a rural municipality (RM) in the Canadian province of Saskatchewan within Census Division No. 15 and Division No. 5.
The RM of Russia No. 490 was originally incorporated as a rural municipality on January 1, 1913. Its name was changed to the RM of Garden River No. 490 on March 24, 1928.
The following urban municipalities are surrounded by the RM.
In the 2021 Census of Population conducted by Statistics Canada, the RM of Garden River No. 490 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 Garden River No. 490 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.
The RM of Garden River No. 490 is governed by an elected municipal council and an appointed administrator that meets on the second Friday of every month. The reeve of the RM is Ryan Scragg while its administrator is Rebecca Matthews. The RM's office is located in Meath Park.