In the 2021 Census of Population conducted by Statistics Canada, Burdett had a population of 331 living in 105 of its 119 total private dwellings, a change of  from its 2016 population of 401.
Burdett's population was counted in the 2021 Census of Population carried out by Statistics Canada. The town had a population of 331 people living in 105 of its 119 private homes, showing a decrease from 401 in the previous census year.