Buffalo City's 2021 population is now estimated at 717,067. In 1950, the population of Buffalo City was 89,283. Buffalo City has grown by 8,508 since 2015, which represents a 1.20% 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 Buffalo City, which typically includes Buffalo City's population in addition to adjacent suburban areas.