Odesa's 2026 population is now estimated at 1,006,580. In 1950, the population of Odesa was 532,477. Odesa experienced a decrease of -120 residents over the past year, marking an annual decline of -0.01%. 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.