Piura's 2025 population is now estimated at 508,957. In 1950, the population of Piura was 43,921. Piura has grown by 6,790 in the last year, which represents a 1.35% 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 Piura, which typically includes Piura's population in addition to adjacent suburban areas.