| Grassy Creek No. 78 | |
| Official Name: | Rural Municipality of Grassy Creek No. 78 |
| Settlement Type: | Rural municipality |
| Image Map1: | SK RM 78 Grassy Creek.svg |
| Mapsize1: | 200 |
| Map Caption1: | Location of the RM of Grassy Creek No. 78 in Saskatchewan |
| Subdivision Type: | Country |
| Subdivision Name: | Canada |
| Subdivision Type1: | Province |
| Subdivision Name1: | Saskatchewan |
| Subdivision Type2: | Region |
| Subdivision Type4: | division |
| Subdivision Name4: | 3 |
| Subdivision Type5: | Federal riding |
| Subdivision Name5: | Cypress Hills—Grasslands |
| Subdivision Type6: | Provincial riding |
| Subdivision Name6: | Cypress Hills |
| Government Footnotes: | [1] |
| Leader Title: | Reeve |
| Leader Name: | Michael Sutter |
| Leader Title1: | Governing body |
| Leader Name1: | RM of Grassy Creek No. 78 Council |
| Leader Title2: | Administrator |
| Leader Name2: | Kathy Collins |
| Leader Title3: | Office location |
| Leader Name3: | Shaunavon |
| Established Title: | Formed |
| Established Title2: | Formed |
| Established Date2: | January 1, 1913 |
| Established Title3: | Name change |
| Established Title4: | Name change |
| Established Title5: | Amalgamated |
| Area Footnotes: | (2016) |
| Area Land Km2: | 837.4 |
| Population As Of: | 2016 |
| Population Total: | 364 |
| Population Density Km2: | 0.4 |
| Timezone: | CST |
| Timezone Dst: | CST |
| Coordinates: | 49.604°N -108.279°W[2] |
| Postal Code Type: | Postal code |
| Postal Code: | S0N 2M0 |
| Area Code: | 306 and 639 |
| Blank Name: | Highway(s) |
| Blank1 Name: | Railway(s) |
| Blank2 Name: | Waterway(s) |
The Rural Municipality of Grassy Creek No. 78 (2016 population:) is a rural municipality (RM) in the Canadian province of Saskatchewan within Division No. 3.
The RM of Grassy Creek No. 78 incorporated as a rural municipality on January 1, 1913.[3]
In the 2021 Census of Population conducted by Statistics Canada, the RM of Grassy Creek No. 78 had a population of living in of its total private dwellings, a change of from its 2016 population of . With a land area of 831.45km2, it had a population density of in 2021.[4]
In the 2016 Census of Population, the RM of Grassy Creek No. 78 recorded a population of living in of its total private dwellings, a change from its 2011 population of . With a land area of 837.4km2, it had a population density of in 2016.[5]
The RM of Grassy Creek No. 78 is governed by an elected municipal council and an appointed administrator that meets on the third Wednesday of every month.[1] The reeve of the RM is Michael Sutter while its administrator is Kathy Collins.[1] The RM's office is located in Shaunavon. The RM shares this office with the RM of Wise Creek.[1]