Gironde is the largest department in the Nouvelle-Aquitaine region of Southwestern France. Named after the Gironde estuary, a major waterway, its prefecture is Bordeaux. In 2016, it had a population of 1,566,679. The famous Bordeaux wine region is in Gironde. It has six arrondissements, making it one of the departments with the most arrondissements (Nord also has six, while Pas-de-Calais has the most of any department, with seven).