In the 2021 Census of Population conducted by Statistics Canada, Northern Sunrise County had a population of 1,711 living in 658 of its 765 total private dwellings, a change of  from its 2016 population of 1,921.
According to the 2021 Census conducted by Statistics Canada, Northern Sunrise County's population was 1,711 in 2021, with 658 out of its 765 private dwellings occupied. This represents a decrease from its 2016 population of 1,921.