Xinmi's 2021 population is now estimated at 600,980. In 1950, the population of Xinmi was 3,074. Xinmi has grown by 25,284 since 2015, which represents a 4.39% 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 Xinmi, which typically includes Xinmi's population in addition to adjacent suburban areas.