Orenburg's 2025 population is now estimated at 570,039. In 1950, the population of Orenburg was 219,274. Orenburg has grown by 280 in the last year, which represents a 0.05% 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 Orenburg, which typically includes Orenburg's population in addition to adjacent suburban areas.