Morières-lès-Avignon is a commune in the Vaucluse department in the Provence-Alpes-Côte d'Azur region in Southeastern France. It is loca…Morières-lès-Avignon is a commune in the Vaucluse department in the Provence-Alpes-Côte d'Azur region in Southeastern France. It is located just east of Avignon, with a population of 8,563 as of 2018.