398 (2016 population: 596) is a rural municipality (RM) in the Canadian province of Saskatchewan within Census Division No.

398 incorporated as a rural municipality on December 11, 1911.

The following unincorporated communities are within the RM In the 2021 Census of Population conducted by Statistics Canada, the RM of Pleasantdale No.

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

[3] The reeve of the RM is Fred Graham while its administrator is Debra Parry.