Khubar's 2021 population is now estimated at 338,072. In 1950, the population of Khubar was 4,251. Khubar has grown by 9,001 since 2015, which represents a 2.74% 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 Khubar, which typically includes Khubar's population in addition to adjacent suburban areas.