304 (2016 population: 301) is a rural municipality (RM) in the Canadian province of Saskatchewan within Census Division No.

304 incorporated as a rural municipality on January 1, 1913.

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

304 is governed by an elected municipal council and an appointed administrator that meets on the first Wednesday of every month.

[3] The reeve of the RM is Don Skoretz while its administrator is Twila Hadubiak.