San Juan
- Country:
- Argentina
- Continent:
- South America
San Juan's 2025 population is now estimated at 560,819. In 1950, the population of San Juan was 108,151. San Juan has grown by 5,061 in the last year, which represents a 0.91% annual change.These population estimates and projections come from the latest revision of the UN World Urbanization Prospects. These estimates represent the Urban agglomeration of San Juan, which typically includes San Juan's population in addition to adjacent suburban areas.