In the 2021 Census of Population conducted by Statistics Canada, Bradwell had a population of 164 living in 70 of its 78 total private dwellings, a change of -1.2% from its 2016 population of 166. With a land area of 0.42 km (0.16 sq mi), it had a population density of 390.5/km (1,011.3/sq mi) in 2021.
In the 2016 Census of Population, the village of Bradwell recorded a population of 166 living in 62 of its 65 total private dwellings, a -38.6% change from its 2011 population of 230. With a land area of 0.42 km (0.16 sq mi), it had a population density of 395.2/km (1,023.7/sq mi) in 2016.