Pibroch is a hamlet in central Alberta, Canada within Westlock County. It is located 2 kilometres west of Highway 44, approximately 83 kilometres northwest of Edmonton. In the 2021 Census of Population conducted by Statistics Canada, Pibroch had a population of 35 living in 16 of its 18 total private dwellings, a change of -25.5% from its 2016 population of 47. …Pibroch is a hamlet in central Alberta, Canada within Westlock County. It is located 2 kilometres west of Highway 44, approximately 83 kilometres northwest of Edmonton. In the 2021 Census of Population conducted by Statistics Canada, Pibroch had a population of 35 living in 16 of its 18 total private dwellings, a change of -25.5% from its 2016 population of 47. With a land area of 2.26 km², it had a population density of 15.5/km² in 2021.