Adrar is the administrative capital of Adrar Province, the second largest province in Algeria. The commune is sited around an oasis in the Touat region of the Sahara Desert. According to a 2008 census, it has a population of 64,781, up from 43,903 in 1998, with an annual growth rate of 4.0%. Adrar is mainly an agricultural town, characterized by its traditional irrigation system, the Foggara.