Siping's 2021 population is now estimated at 604,724. In 1950, the population of Siping was 116,869. Siping has grown by 10,242 since 2015, which represents a 1.72% 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 Siping, which typically includes Siping's population in addition to adjacent suburban areas.