In the 2021 Census of Population conducted by Statistics Canada, Long Lake had a population of 81 living in 43 of its 177 total private dwellings, a change of 28.6% from its 2016 population of 63. With a land area of 2.08 km2 (0.80 sq mi), it had a population density of 38.9/km2 (100.9/sq mi) in 2021.[1]
As a designated place in the 2016 Census of Population conducted by Statistics Canada, Long Lake had a population of 63 living in 31 of its 165 total private dwellings, a change of -14.9% from its 2011 population of 74. With a land area of 1.96 km2 (0.76 sq mi), it had a population density of 32.1/km2 (83.2/sq mi) in 2016.[9]