Zhoushan's 2021 population is now estimated at 659,777. In 1950, the population of Zhoushan was 10,630. Zhoushan has grown by 12,358 since 2015, which represents a 1.91% 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 Zhoushan, which typically includes Zhoushan's population in addition to adjacent suburban areas.