O'Leary
- Country:
- Canada
- Continent:
- North America
O'Leary's 2026 population is now estimated at 2,935.In 2001, the population of O'Leary was 2,811.O'Leary has grown by 57 in the last year, which represents a 1.98% 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.