261 (2016 population: 481) is a rural municipality (RM) in the Canadian province of Saskatchewan within Census Division No.

[2] The southern boundary of the RM is along the South Saskatchewan River.

In the 2021 Census of Population conducted by Statistics Canada, the RM of Chesterfield No.

261 is governed by an elected municipal council and an appointed administrator that meets on the second Tuesday of every month.

[3] The reeve of the RM is Karrie Derouin while its administrator is Tosha McCubbing.