Ilam province is divided into 11 counties, 28 districts, 52 rural districts.On 4 January 2020, Holeylan, having been a district of Chardavol County, became the 11th county of Ilam province.
List The following is the list of counties of Ilam province. CountySeatPopulationArea (km2)AbdananAbdanan47,8512,520IlamIlam235,1442,168EyvanEyvan49,491914BadrehBadreh15,614568ChardavolSarableh42,105920Darreh ShahrDarreh Shahr43,708896DehloranDehloran65,6306,671SirvanLumar14,404653MalekshahiArkavaz21,1381,740MehranMehran29,7972,436HoleylanTowhid15,276620
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