Korba's 2025 population is now estimated at 456,114. In 1950, the population of Korba was 4,471. Korba has grown by 9,010 in the last year, which represents a 2.02% 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 Korba, which typically includes Korba's population in addition to adjacent suburban areas.