St. Catharines
- Province:
- Ontario
St. Catharines is a city located in Ontario, Canada with a current estimated population of 139,829. The population was recorded at 136,803 in the 2021 Canadian Census, and was previously recorded at 133,113 in the 2016 census. This is a change in population of 3,690, which is an annual growth rate of 0.55%.
