Armissan is part of the urban area of Narbonne and is located just 2 km east of the city immediately south of Vinassan and inside the Regional Natural Park of Narbonne.

Access to the commune is by road D68 from Narbonne passing through the town and continuing south-east to join the D168 to Narbonne-Plage at the southern border of the commune.

There is also the D31 going south from Vinasson through the west of the commune to join the D32.

List of Successive Mayors[4] The inhabitants of the commune are known as Armissannais or Armissannaises in French.

The Church of Saint-Etienne contains many items that are registered as historical objects: