Liaocheng's 2021 population is now estimated at 778,562. In 1950, the population of Liaocheng was 10,095. Liaocheng has grown by 17,677 since 2015, which represents a 2.32% 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 Liaocheng, which typically includes Liaocheng's population in addition to adjacent suburban areas.