The Rural Municipality of McKillop No. 220 (2016 population: ) is a rural municipality (RM) in the Canadian province of Saskatchewan within Census Division No. 6 and Division No. 2.
The RM of Strassburg No. 220 was originally incorporated as a rural municipality on December 13, 1909. Its name was changed to the RM of McKillop No. 220 on July 15, 1919.
The RM is adjacent to Last Mountain Lake.
The following urban municipalities are surrounded by the RM.
The following unincorporated communities are within the RM.
In the 2021 Census of Population conducted by Statistics Canada, the RM of McKillop No. 220 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 McKillop No. 220 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 McKillop No. 220 is governed by an elected municipal council and an appointed administrator that meets on the second Monday of every month. The reeve of the RM is Bob Schmidt while its administrator is Camille Box. The RM's office is located in Bulyea.