Marathon
- Country:
- Canada
- Continent:
- North America
Marathon's 2026 population is now estimated at 3,211. In 2001, the population of Marathon was 4,584. Marathon experienced a decrease of -12 residents over the past year, marking an annual decline of -0.37%. 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 .