Venezia's 2025 population is now estimated at 643,284. In 1950, the population of Venezia was 515,006. Venezia has grown by 1,439 in the last year, which represents a 0.22% 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 Venezia, which typically includes Venezia's population in addition to adjacent suburban areas.