Wenzhou's 2025 population is now estimated at 4,093,180. In 1950, the population of Wenzhou was 150,979. Wenzhou has grown by 83,650 in the last year, which represents a 2.09% 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 Wenzhou, which typically includes Wenzhou's population in addition to adjacent suburban areas.