As of July 1st 2020, according to the government of Canada, Halifax saw high growth despite the pandemic, we're 448,544 for the mentioned date, a slight decrease to 9015 new dwellers but still solid.
https://www150.statcan.gc.ca/n1/pub/...020003-eng.htm
Assuming the rate of growth Halifax should have 457,559 for 7/1/2021