The Municipal District of Lesser Slave River No. 124 is a municipal district (MD) in north-central Alberta, Canada. Its municipal office is located in the Town of Slave Lake. Located in Census Division 17, the MD takes its name from Lesser Slave River, which drains Lesser Slave Lake into the Athabasca River.
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The following urban municipalities are surrounded by the MD of Lesser Slave River No. 124.
The following hamlets are located within the MD of Lesser Slave River No. 124.
The following localities are located within the MD of Lesser Slave River No. 124.
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In the 2021 Census of Population conducted by Statistics Canada, the MD of Lesser Slave River No. 124 had a population of 2,861 living in 1,169 of its 1,500 total private dwellings, a change of from its 2016 population of 2,803. With a land area of , it had a population density of in 2021.
The population of the Municipal District of Lesser Slave River No. 124 according to its 2019 municipal census is 2,811, a change from its 2014 municipal census population of 3,074.
In the 2016 Census of Population conducted by Statistics Canada, the MD of Lesser Slave River No. 124 had a population of 2,803 living in 1,090 of its 1,310 total private dwellings, a change from its 2011 population of 2,929. With a land area of , it had a population density of in 2016.
Southern parts of the MD are within Pembina Hills Public Schools, which formed in 1995 as a merger of three school districts.