Chongjin's 2021 population is now estimated at 645,488. In 1950, the population of Chongjin was 158,000. Chongjin has grown by 3,041 since 2015, which represents a 0.47% 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 Chongjin, which typically includes Chongjin's population in addition to adjacent suburban areas.