Jiamusi's 2025 population is now estimated at 774,118. In 1950, the population of Jiamusi was 131,965. Jiamusi has grown by 12,215 in the last year, which represents a 1.6% 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 Jiamusi, which typically includes Jiamusi's population in addition to adjacent suburban areas.