Idlès is a municipality in Tazrouk District, Tamanrasset Province, Algeria. According to the 2008 census it has a population of 4,945, up from 3,791 in 1998, with an annual growth rate of 2.7%. Its postal code is 11110 and its municipal code is 1105. The largest nearby city is Tamanrasset; other smaller towns include In Amguel to the west and Tazrouk to the south.