In France, a municipal arrondissement is a subdivision of the commune, and is used in the countrys three largest cities, Paris, Lyon and Marseille. It functions as a lower administrative division, with its own mayor. Although usually referred to simply as arrondissements, they should not be confused with departmental arrondissements, there are 45 municipal arrondissements in France,20 in Paris, nine in Lyon, and 16 in Marseille. However, a law in 1987 assigned the 16 arrondissements of Marseille to eight secteurs, thus, in effect, Marseille can be more properly described as being divided into eight secteurs, the sixteen arrondissements having been made merely units of demarcation. Area The largest arrondissement is the arrondissement of Marseille,63.21 km², which is 26 percent of the size of the city of Marseille. It contains the Luminy Park, which is a park. The smallest arrondissement is the arrondissement of Paris,0.992 km². Population The most populous arrondissement is the arrondissement of Paris. If the 15th arrondissement of Paris were a commune, it would be the ninth most-populous commune of France, larger than the cities of Bordeaux, Lille, the least populous arrondissement is the 16th arrondissement of Marseille, with only 16,574 inhabitants. However, the 16th arrondissement is part of the eighth secteur of Marseille, thus, the least populous arrondissement in France is the first arrondissement of Paris, with 16,888 inhabitants at the 1999 census. Density The arrondissement with the highest population density is the 11th arrondissement of Paris, the arrondissement with the lowest population density is the ninth arrondissement of Marseille, with 1,151 residents per km² in 1999. Municipal arrondissements have names only in Paris and are used even there. In Paris, residents are familiar with the arrondissements and. In Lyon, three arrondissements – Vieux Lyon, la Croix Rousse and Vaise – are generally referred to by names. In Marseille, it is common for people to refer to the names of the neighborhoods, anne or Mazargues, but also to the number of the arrondissements. Municipal arrondissements are used in the postal codes of France. The arrondissements of Paris form a spiral or snail pattern beginning from the first in the centre. In Marseille, they form a path from the first down through the southwest, to the southeast, northeast
The twenty arrondissements of Paris
The 16 arrondissements and the 8 secteurs of Marseille.
The twelve former arrondissements of Paris (between 1795 and 1860).