Ar-Rayyan's 2021 population is now estimated at 759,174. In 1950, the population of Ar-Rayyan was 2,205. Ar-Rayyan has grown by 21,271 since 2015, which represents a 2.88% 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-Rayyan, which typically includes Ar-Rayyan's population in addition to adjacent suburban areas.