| Arm River No. 252 | |
| Official Name: | Rural Municipality of Arm River No. 252 |
| Settlement Type: | Rural municipality |
| Other Name: | Girvin No. 252 (1909–1912) |
| Mapsize: | 200 |
| Subdivision Type: | Country |
| Subdivision Name: | Canada |
| Subdivision Type1: | Province |
| Subdivision Name1: | Saskatchewan |
| Subdivision Type2: | Region |
| Subdivision Type3: | Census division |
| Subdivision Name3: | 11 |
| Subdivision Type4: | division |
| Subdivision Name4: | 5 |
| Subdivision Type5: | Federal riding |
| Subdivision Type6: | Provincial riding |
| Government Footnotes: | [1] |
| Leader Title: | Reeve |
| Leader Name: | Wayne Obrigewitsch |
| Leader Title1: | Governing body |
| Leader Name1: | RM of Arm River No. 252 Council |
| Leader Title2: | Administrator |
| Leader Name2: | Yvonne (Bonny) Goodsman |
| Leader Title3: | Office location |
| Leader Name3: | Davidson |
| Established Title: | Formed |
| Established Title2: | Formed |
| Established Date2: | December 13, 1909 |
| Established Title3: | Name change |
| Established Date3: | June 29, 1912 (from RM of Girvin No. 252) |
| Established Title4: | Name change |
| Established Title5: | Amalgamated |
| Area Footnotes: | (2016) |
| Area Land Km2: | 725.3 |
| Population As Of: | 2016 |
| Population Total: | 250 |
| Population Density Km2: | 0.3 |
| Timezone: | CST |
| Timezone Dst: | CST |
| Coordinates: | 51.224°N -105.824°W[2] |
| Postal Code Type: | Postal code |
| Area Code: | 306 and 639 |
| Blank Name: | Highway(s) |
| Blank1 Name: | Railway(s) |
| Blank2 Name: | Waterway(s) |
The Rural Municipality of Arm River No. 252 (2016 population:) is a rural municipality (RM) in the Canadian province of Saskatchewan within Census Division No. 11 and Division No. 5. It is located along Highway 11 between Saskatoon and Regina.
The RM of Girvin No. 252 was originally incorporated as a rural municipality on December 13, 1909.[3] Its name was changed to the RM of Arm River No. 252 on June 29, 1912.[4]
The following urban municipalities are surrounded by the RM.
The following unincorporated communities are within the RM.
In the 2021 Census of Population conducted by Statistics Canada, the RM of Arm River No. 252 had a population of living in of its total private dwellings, a change of from its 2016 population of . With a land area of 721.58km2, it had a population density of in 2021.[5]
In the 2016 Census of Population, the RM of Arm River No. 252 recorded a population of living in of its total private dwellings, a change from its 2011 population of . With a land area of 725.3km2, it had a population density of in 2016.[6]
The RM of Arm River No. 252 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 Wayne Obrigewitsch while its administrator is Yvonne (Bonny) Goodsman.[1] The RM's office is located in Davidson.[1]