Odesa's 2025 population is now estimated at 1,006,700. In 1950, the population of Odesa was 532,477. Odesa experienced a decrease of -900 residents over the past year, marking an annual decline of -0.09%. These population estimates and projections come from the latest revision of the UN World Urbanization Prospects . These estimates represent the Urban agglomeration of Odesa, which typically includes Odesa's population in addition to adjacent suburban areas.