Mariupol's 2021 population is now estimated at 436,644. In 1950, the population of Mariupol was 191,219. Mariupol has grown by -2,865 since 2015, which represents a -0.65% 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 Mariupol, which typically includes Mariupol's population in addition to adjacent suburban areas.