Xinyi's 2021 population is now estimated at 577,474. In 1950, the population of Xinyi was 3,109. Xinyi has grown by 17,861 since 2015, which represents a 3.19% 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 Xinyi, which typically includes Xinyi's population in addition to adjacent suburban areas.