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.