In the 2021 Census of Population conducted by Statistics Canada, Dore Lake had a population of  living in  of its  total private dwellings, a change of  from its 2016 population of .
According to the 2021 Census of Population carried out by Statistics Canada, Dore Lake had a population of people living in  out of its total private residences, showing a change of  compared to its 2016 population.