Zhengzhou's 2021 population is now estimated at 5,510,341. In 1950, the population of Zhengzhou was 195,573. Zhengzhou has grown by 187,645 since 2015, which represents a 3.53% 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 Zhengzhou, which typically includes Zhengzhou's population in addition to adjacent suburban areas.