Zaozhuang's 2021 population is now estimated at 1,101,823. In 1950, the population of Zaozhuang was 129,821. Zaozhuang has grown by 14,078 since 2015, which represents a 1.29% 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 Zaozhuang, which typically includes Zaozhuang's population in addition to adjacent suburban areas.