Arles (Bouches-du-Rhône) holds a record, that of being the largest in mainland France. Its surface area of ​​758.9 km² almost equals that of New York City (783.8 km²) It is in Guyana that the largest French commune is located.

With its 18,360 km², Maripasoula, located in the heart of the Amazonian park, represents one and a half times the surface of Île-de-France.