In the 2021 Census of Population conducted by Statistics Canada, Oakville had a population of 652 living in 253 of its 263 total private dwellings, a change of  from its 2016 population of 621.
According to the 2021 Census of Population conducted by Statistics Canada, Oakville's population was 652 people residing in 253 out of its 263 private dwellings. This represents a change from its 2016 population of 621.