El Djelfa's 2026 population is now estimated at 622,450. In 1950, the population of El Djelfa was 10,450. El Djelfa has grown by 15,482 in the last year, which represents a 2.55% 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 El Djelfa, which typically includes El Djelfa's population in addition to adjacent suburban areas.