In the 2021 Census of Population conducted by Statistics Canada, Sled Lake had a population of 24 living in 12 of its 27 total private dwellings, a change of 140% from its 2016 population of 10. With a land area of 1.97 km2 (0.76 sq mi), it had a population density of 12.2/km2 (31.6/sq mi) in 2021.[2]