Hegang's 2021 population is now estimated at 644,894. In 1950, the population of Hegang was 416,668. Hegang has grown by 6,039 since 2015, which represents a 0.95% 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 Hegang, which typically includes Hegang's population in addition to adjacent suburban areas.