Valladolid's 2025 population is now estimated at 300,977. In 1950, the population of Valladolid was 123,788. Valladolid experienced a decrease of -169 residents over the past year, marking an annual decline of -0.06%.These population estimates and projections come from the latest revision of the UN World Urbanization Prospects. These estimates represent the Urban agglomeration of Valladolid, which typically includes Valladolid's population in addition to adjacent suburban areas.