155 (2016 population: 372) is a rural municipality (RM) in the Canadian province of Saskatchewan within Census Division No.

[5] The narrowleaf water plantain (alisma gramineum}, tall larkspur (delphinium glaucum), and common butterwort (pinguicula vulgaris) are species of special concern in this area.

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

155 is governed by an elected municipal council and an appointed administrator that meets on the third Monday of every month.

[3] The reeve of the RM is Bev Kenny while its administrator is Rose Zimmer.