 Arzens is located in the urban area of Carcassonne some 11 km west of the city.Access to the commune is by road D119 from Carcassonne passing west through the north of the commune and continuing to Montréal.Access to the town is by road D38 from Sainte-Eulalie in the north to the town, by road D35 from Villesèquelande in the north-east, and by road D211 from Lavalette in the east which continues to join the D119 in the commune.