Incheon's 2021 population is now estimated at 2,818,288. In 1950, the population of Incheon was 257,644. Incheon has grown by 17,249 since 2015, which represents a 0.62% 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 Incheon, which typically includes Incheon's population in addition to adjacent suburban areas.