Plovdiv's 2025 population is now estimated at 347,170. In 1950, the population of Plovdiv was 137,142. Plovdiv experienced a decrease of -148 residents over the past year, marking an annual decline of -0.04%.These population estimates and projections come from the latest revision of the UN World Urbanization Prospects. These estimates represent the Urban agglomeration of Plovdiv, which typically includes Plovdiv's population in addition to adjacent suburban areas.