| Lake Johnston No. 102 | |
| Official Name: | Rural Municipality of Lake Johnston No. 102 |
| Settlement Type: | Rural municipality |
| Image Map1: | SK RM 102 Lake Johnston.svg |
| Mapsize1: | 200 |
| Map Caption1: | Location of the RM of Lake Johnston No. 102 in Saskatchewan |
| Subdivision Type: | Country |
| Subdivision Name: | Canada |
| Subdivision Type1: | Province |
| Subdivision Name1: | Saskatchewan |
| Subdivision Type2: | Region |
| Subdivision Type3: | Census division |
| Subdivision Name3: | 3 |
| Subdivision Type4: | division |
| Subdivision Name4: | 2 |
| Subdivision Type5: | Federal riding |
| Subdivision Name5: | Cypress Hills—Grasslands |
| Subdivision Type6: | Provincial riding |
| Subdivision Name6: | Wood River |
| Government Footnotes: | [1] |
| Leader Title: | Reeve |
| Leader Name: | Ivan Costley |
| Leader Title1: | Governing body |
| Leader Name1: | RM of Lake Johnston No. 102 Council |
| Leader Title2: | Administrator |
| Leader Name2: | Chris Costley |
| Leader Title3: | Office location |
| Leader Name3: | Mossbank |
| Established Title: | Formed |
| Established Title2: | Formed |
| Established Date2: | December 9, 1912 |
| Established Title3: | Name change |
| Established Title4: | Name change |
| Established Title5: | Amalgamated |
| Area Footnotes: | (2021) |
| Area Land Km2: | 555.8 |
| Area Land Sq Mi: | 214.6 |
| Population As Of: | 2021 |
| Population Total: | 140 |
| Population Density Km2: | 0.3 |
| Timezone: | CST |
| Timezone Dst: | CST |
| Coordinates: | 49.898°N -105.815°W[2] |
| Postal Code Type: | Postal code |
| Postal Code: | S0H 3G0 |
| Area Code: | 306 and 639 |
| Blank Name: | Highway(s) |
| Blank1 Name: | Railway(s) |
| Blank2 Name: | Waterway(s) |
The Rural Municipality of Lake Johnston No. 102 (2021 population:) is a rural municipality (RM) in the Canadian province of Saskatchewan within Census Division No. 3 and Division No. 2. Located in the southwest portion of the province, it is north of the town of Assiniboia and south of the city of Moose Jaw.
The RM of Lake Johnston No. 102 incorporated as a rural municipality on December 9, 1912.[3]
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 Lake Johnston No. 102 had a population of living in of its total private dwellings, a change of from its 2016 population of . With a land area of 555.8km2, it had a population density of in 2021.[5]
In the 2016 Census of Population, the RM of Lake Johnston No. 102 recorded a population of living in of its total private dwellings, a change from its 2011 population of . With a land area of 567.24km2, it had a population density of in 2016.[6]
Two nearby conservation areas include the Old Wives Lake Bird Sanctuary and the Isle of Bays Wildlife Refuge. They are 16km (10miles) and 10km (10miles) north of Expanse respectively.
The RM of Lake Johnston No. 102 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 Sacha Martens while its Administrator is Boyd Holland.[1] The RM's office is located in Mossbank.[1]