Departments of France - General Characteristics

General Characteristics

The departmental seat of government is called the prefecture (préfecture) or chef-lieu de department and is generally a city of some importance roughly at the geographical centre of the department. This was determined according to the time taken to travel on horseback from the periphery of the department. The goal was for the prefecture to be accessible by horseback from any town in the department within 24 hours. The prefecture is not necessarily the largest city in the department; for instance, in Saône-et-Loire department the capital is Mâcon, but the largest city is Chalon-sur-Saône. Departments are divided into one or more arrondissements. The capital of an arrondissement is called a subprefecture (sous-préfecture) or chef-lieu d'arrondissement.

Each department is administered by a general council (conseil général), an assembly elected for six years by universal suffrage, with the president of the council as executive of the department. Before 1982, the executive of a department was the prefect (préfet) who represents the Government of France in each department and is appointed by the President of France. The prefect is assisted by one or more sub-prefects (sous-préfet) based in the subprefectures of the department.

The departments are further divided into communes, governed by municipal councils. As of 1999, there were 36,779 communes in France. In the overseas territories, some communes play a role at departmental level. Paris, the country’s capital city, is a commune as well as a department.

In continental France (metropolitan France, excluding Corsica), the median land area of a department is 5,965 km2 (2,303 sq mi), which is two-and-a-half times the median land area of a ceremonial county of England & Wales and slightly more than three-and-half times the median land area of a county of the United States. At the 2001 census, the median population of a department in continental France was 511,012 inhabitants, which is 21 times the median population of a U.S. county, but less than two-thirds of the median population of a ceremonial county of England & Wales. Most of the departments have an area of between 4,000 and 8,000 km², and a population between 320,000 and 1 million. The largest in area is Gironde (10,000 km²), while the smallest is the city of Paris (105 km²). The most populous is Nord (2,550,000) and the least populous is Lozère (74,000).

The departments are numbered: their two-digit numbers appear in postal codes, in INSEE codes (including "social security numbers") and on vehicle number-plates. Initially, the numbers corresponded to the alphabetical order of the names of the departments, but several changed their names, so the correspondence became less exact. There is no number 20, but 2A and 2B instead, for Corsica. Corsican postal codes or addresses in both departments do still start with 20, though. The two-digit code "98" is used by Monaco. Together with the ISO 3166-1 alpha-2 country code FR, the numbers form the ISO 3166-2 country subdivision codes for the metropolitan departments. The overseas departments get three digits, e.g. 971 for Guadeloupe (see table below).