Ar-Rusayfah's 2021 population is now estimated at 525,880. In 1950, the population of Ar-Rusayfah was 2,039. Ar-Rusayfah has grown by 2,337 since 2015, which represents a 0.45% 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 Ar-Rusayfah, which typically includes Ar-Rusayfah's population in addition to adjacent suburban areas.