It was created as a municipal district on January 1, 1988 from the former Improvement District No. 8.[3] The Town of Canmore lies adjacent to the municipal district to the southwest.
In the 2021 Census of Population conducted by Statistics Canada, the MD of Bighorn No. 8 had a population of 1,598 living in 640 of its 875 total private dwellings, a change of 20.7% from its 2016 population of 1,324. With a land area of 2,678.8 km2 (1,034.3 sq mi), it had a population density of 0.6/km2 (1.5/sq mi) in 2021.[2]
In the 2016 Census of Population conducted by Statistics Canada, the MD of Bighorn No. 8 had a population of 1,334 living in 556 of its 766 total private dwellings, a -0.5% change from its 2011 population of 1,341. With a land area of 2,761.18 km2 (1,066.10 sq mi), it had a population density of 0.5/km2 (1.3/sq mi) in 2016.[6]