Miramas is a commune of 23,800 people ( 2005 ) . It is found in the region Provence-Alpes-C Ã te d'Azur in the Bouches-du-Rh Ã ne department in the south of France .
Miramas is a commune in the Bouches-du-Rh Ã ne department in the Provence-Alpes-C Ã te d'Azur region in southern France .