In the 2021 Census of Population conducted by Statistics Canada, Benchlands had a population of 59 living in 26 of its 34 total private dwellings, a change of 37.2% from its 2016 population of 43. With a land area of 0.41km2 (0.16sqmi), it had a population density of 143.9/km2 (372.7/sqmi) in 2021.
As a designated place in the 2016 Census of Population conducted by Statistics Canada, Benchlands had a population of 43 living in 19 of its 30 total private dwellings, a change of 2.4% from its 2011 population of 42. With a land area of 0.41km2 (0.16sqmi), it had a population density of 104.9/km2 (271.6/sqmi) in 2016.
↑"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.