In the
2021 Census of Population conducted by
Statistics Canada, Rochester had a population of 72 living in 42 of its 59 total private dwellings, a change of from its 2016 population of 79. With a land area of , it had a population density of in 2021. As a designated place in the
2016 Census of Population conducted by Statistics Canada, Rochester had a population of 79 living in 38 of its 45 total private dwellings, a change of from its 2011 population of 101. With a land area of , it had a population density of in 2016. == See also ==