Vicenza's 2025 population is now estimated at 334,102. In 1950, the population of Vicenza was 183,028. Vicenza has grown by 1,253 in the last year, which represents a 0.38% 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 Vicenza, which typically includes Vicenza's population in addition to adjacent suburban areas.