Île Saint-Louis (French: [il sɛ̃ lwi]), eleven hectares (27 acres) in size, is one of two natural islands in the Seine river, in Paris, France (the other natural island is the Île de la Cité, where Notre-Dame de Paris is located). Île Saint-Louis is connected to the rest of Paris by four bridges to both banks of the river and to the Île de la Cité by the Pont Saint-Louis. The island is located within the 4th arrondissement of Paris and has a population of 4,453.