South Frontenac
- Country:
- Canada
- Continent:
- North America
South Frontenac's 2026 population is now estimated at 21,830. In 2001, the population of South Frontenac was 17,044. South Frontenac has grown by 231 in the last year, which represents a 1.07% 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 .