What is the largest administrative division of France?

The largest administrative division of France is the region. There are 18 regions in France, listed below:

• Auvergne-Rhone-Alpes
• Bourgogne-Franche-Comte
• Bretagne
• Centre-Val de Loire
• Corse
• Grand Est
• Hauts-de-France
• Ile-de-France
• Normandie
• Nouvelle-Aquitaine
• Occitanie
• Pays de la Loire
• Provence-Alpes-Cote d'Azur
• Guadeloupe
• Martinique
• Guyane
• La Reunion
• Mayotte

The regions are responsible for healthcare, education, public transport, economic development, and culture. The regions are further divided into departments, which are in turn divided into communes. The regions are the most powerful administrative divisions in France.