Yingkou's 2021 population is now estimated at 1,251,867. In 1950, the population of Yingkou was 120,106. Yingkou has grown by 37,820 since 2015, which represents a 3.12% 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 Yingkou, which typically includes Yingkou's population in addition to adjacent suburban areas.