Hai Phong's 2021 population is now estimated at 1,341,015. In 1950, the population of Hai Phong was 121,563. Hai Phong has grown by 40,927 since 2015, which represents a 3.15% 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 Hai Phong, which typically includes Hai Phong's population in addition to adjacent suburban areas.