St. Catharines
- Country:
- Canada
- Continent:
- North America
St. Catharines's 2026 population is now estimated at 156,617. In 2001, the population of St. Catharines was 134,370. St. Catharines has grown by 2,752 in the last year, which represents a 1.79% annual change. These population values and projections come from Statistics Canada Table 17-10-0155-01: Population estimates, July 1, by census subdivision, 2021 boundaries and World Population Review Internal Projections .