In the 2021 Census of Population conducted by Statistics Canada, Flatbush had a population of 30 living in 16 of its 19 total private dwellings, a change of -33.3% from its 2016 population of 45. With a land area of 0.69 km2 (0.27 sq mi), it had a population density of 43.5/km2 (112.6/sq mi) in 2021.[1]
As a designated place in the 2016 Census of Population conducted by Statistics Canada, Flatbush had a population of 45 living in 19 of its 22 total private dwellings, a change of 50% from its 2011 population of 30. With a land area of 0.69 km2 (0.27 sq mi), it had a population density of 65.2/km2 (168.9/sq mi) in 2016.[16]
^"Geographical Identification and Population for Unincorporated Places of 25 persons and over, 1971 and 1976". 1976 Census of Canada(PDF). Supplementary Bulletins: Geographic and Demographic (Population of Unincorporated Places—Canada). Vol. Bulletin 8SG.1. Ottawa: Statistics Canada. 1978. Retrieved September 26, 2024.
^1981 Census of Canada(PDF). Place name reference list. Vol. Western provinces and the Territories. Ottawa: Statistics Canada. 1983. Retrieved September 26, 2024.