Hangzhou's 2025 population is now estimated at 8,591,040. In 1950, the population of Hangzhou was 610,395. Hangzhou has grown by 171,200 in the last year, which represents a 2.03% 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 Hangzhou, which typically includes Hangzhou's population in addition to adjacent suburban areas.