Warri's 2021 population is now estimated at 898,927. In 1950, the population of Warri was 16,222. Warri has grown by 42,986 since 2015, which represents a 5.02% 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 Warri, which typically includes Warri's population in addition to adjacent suburban areas.