Treviso's 2021 population is now estimated at 376,852. In 1950, the population of Treviso was 212,684. Treviso has grown by 3,205 since 2015, which represents a 0.86% 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 Treviso, which typically includes Treviso's population in addition to adjacent suburban areas.