Jiuquan's 2025 population is now estimated at 446,215. In 1950, the population of Jiuquan was 2,190. Jiuquan has grown by 10,661 in the last year, which represents a 2.45% 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 Jiuquan, which typically includes Jiuquan's population in addition to adjacent suburban areas.