Haikou's 2023 population is now estimated at 2,016,092. In 1950, the population of Haikou was 106,982. Haikou has grown by 41,848 in the last year, which represents a 2.12% 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 Haikou, which typically includes Haikou's population in addition to adjacent suburban areas.