| Happy Valley No. 10 | |
| Official Name: | Rural Municipality of Happy Valley No. 10 |
| Settlement Type: | Rural municipality |
| Image Map1: | SK RM 10 Happy Valley.svg |
| Mapsize1: | 200 |
| Map Caption1: | Location of the RM of Happy Valley No. 10 in Saskatchewan |
| Subdivision Type: | Country |
| Subdivision Name: | Canada |
| Subdivision Type1: | Province |
| Subdivision Name1: | Saskatchewan |
| Subdivision Type2: | Region |
| Subdivision Type3: | Census division |
| Subdivision Name3: | 2 |
| Subdivision Type4: | division |
| Subdivision Name4: | 2 |
| Subdivision Type5: | Federal riding |
| Subdivision Name5: | Souris—Moose Mountain |
| Subdivision Type6: | Provincial riding |
| Subdivision Name6: | Weyburn-Big Muddy |
| Government Footnotes: | [1] |
| Leader Title: | Reeve |
| Leader Name: | Rodney Sjogren |
| Leader Title1: | Governing body |
| Leader Name1: | RM of Happy Valley No. 10 Council |
| Leader Title2: | Administrator |
| Leader Name2: | Leanne Totton |
| Leader Title3: | Office location |
| Leader Name3: | Big Beaver |
| 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: | 812.74 |
| Population As Of: | 2016 |
| Population Total: | 139 |
| Population Density Km2: | 0.2 |
| Timezone: | CST |
| Timezone Dst: | CST |
| Coordinates: | 49.13°N -105.018°W[2] |
| Postal Code Type: | Postal code |
| Postal Code: | S0H 0G0 |
| Area Code: | 306 and 639 |
| Blank Name: | Highway(s) |
| Blank1 Name: | Railway(s) |
| Blank2 Name: | Waterway(s) |
The Rural Municipality of Happy Valley No. 10 (2016 population:) is a rural municipality (RM) in the Canadian province of Saskatchewan within Census Division No. 2 and Division No. 2. Located in the southeast portion of the province, it is adjacent to the United States border, neighbouring Daniels County and Sheridan County in Montana.
The RM of Happy Valley No. 10 incorporated as a rural municipality on January 1, 1913.[3]
The following unincorporated communities are within the RM.
There are three sites on Canadian Register of Historic Places in the RM:
In the 2021 Census of Population conducted by Statistics Canada, the RM of Happy Valley No. 10 had a population of living in of its total private dwellings, a change of from its 2016 population of . With a land area of 806.93km2, it had a population density of in 2021.[8]
In the 2016 Census of Population, the RM of Happy Valley No. 10 recorded a population of living in of its total private dwellings, a change from its 2011 population of . With a land area of 812.74km2, it had a population density of in 2016.[9]
The RM of Happy Valley No. 10 is governed by an elected municipal council and an appointed administrator that meets on the second Tuesday of every month.[1] The reeve of the RM is Rodney Sjogren while its administrator is Leanne Totton.[1] The RM's office is located in Big Beaver.[1]