Wuhai's 2021 population is now estimated at 644,895. In 1950, the population of Wuhai was 36,179. Wuhai has grown by 14,600 since 2015, which represents a 2.32% 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 Wuhai, which typically includes Wuhai's population in addition to adjacent suburban areas.