Sochi's 2025 population is now estimated at 481,033. In 1950, the population of Sochi was 81,484. Sochi has grown by 3,586 in the last year, which represents a 0.75% 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 Sochi, which typically includes Sochi's population in addition to adjacent suburban areas.