Aranga is a municipality in the autonomous community of Galicia, Spain in the province of A Coruña with an area of 120.49 km², population of 2,…Aranga is a municipality in the autonomous community of Galicia, Spain in the province of A Coruña with an area of 120.49 km², population of 2,181 inhabitants. It is situated in the comarca of Betanzos.