Kermanshah's 2021 population is now estimated at 1,046,604. In 1950, the population of Kermanshah was 97,027. Kermanshah has grown by 20,864 since 2015, which represents a 2.03% 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 Kermanshah, which typically includes Kermanshah's population in addition to adjacent suburban areas.