Shiyan's 2021 population is now estimated at 1,280,495. In 1950, the population of Shiyan was 73,139. Shiyan has grown by 39,045 since 2015, which represents a 3.15% 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 Shiyan, which typically includes Shiyan's population in addition to adjacent suburban areas.