Rio Branco
- Country:
- Brazil
- Continent:
- South America
Rio Branco's 2025 population is now estimated at 393,261. In 1950, the population of Rio Branco was 9,371. Rio Branco has grown by 3,920 in the last year, which represents a 1.01% 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 Rio Branco, which typically includes Rio Branco's population in addition to adjacent suburban areas.