St. Joseph's is a town in the Canadian province of Newfoundland and Labrador. It is located on the Avalon Peninsula, approximately 70 kilometres southwest of St. John's, and near St. Mary's Bay.
The town had a population of 86 in the Canada 2021 Census.
In the 2021 Census of Population conducted by Statistics Canada, St. Joseph's had a population of living in of its total private dwellings, a change of from its 2016 population of . With a land area of , it had a population density of in 2021.