Lancaster Population 2020
Lancaster's 2020 population is now estimated at 497,341. In 1950, the population of Lancaster was 76,675. Lancaster has grown by 46,801 since 2015, which represents a 2.00% 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 Lancaster, which typically includes Lancaster's population in addition to adjacent suburban areas.