In the 2021 Census of Population conducted by Statistics Canada, Maisonnette had a population of  living in  of its  total private dwellings, a change of  from its 2016 population of .
Maisonnette's demographic data was gathered in the 2021 Census of Population, carried out by Statistics Canada. The community had a population of  living in  of its total private dwellings, with a notable shift compared to its 2016 numbers.