Arrondissements of Paris

The city of Paris is divided into twenty arrondissements municipaux, administrative districts, more simply referred to as arrondissements (pronounced [aʁɔ̃dismɑ̃] (listen)).[1] These are not to be confused with departmental arrondissements, which subdivide the larger French départements. The word "arrondissement", when applied to Paris, refers almost always to the municipal arrondissements listed below.

Arrondissements of Paris
Arrondissements of Paris
Country France
RegionÎle-de-France
DepartmentParis
Cantons20
Communes1
PréfectureParis
Area
¹
  Total105 km2 (41 sq mi)
Population
 (2009)
  Total2,234,105
  Density21,000/km2 (55,000/sq mi)
¹ French Land Registry data, which exclude lakes, ponds, and glaciers larger than 1 km², as well as the estuaries of rivers.

The number of the arrondissement is indicated by the last two digits in most Parisian postal codes (75001 up to 75020). In addition to their number, each arrondissement also has a name, often for a local monument. For example, the 5th arrondissement is also called "Panthéon" in reference to the building of the same name.

In early 2016, mayor Anne Hidalgo proposed that the first four arrondissements should have their administrations merged, and the Council of Paris approved this on 15 February. The four have a combined population of about 100,000, with the 1st, 2nd, 4th, and 3rd arrondissements in that order being the four smallest in Paris. The matter was taken up in the National Assembly in August 2016, and approved in February 2017. In a postal referendum from 8 to 14 October 2018, the town hall of the 3rd arrondissement was chosen to house the new shared administration, and the name "Paris Centre" was chosen for the sector. The reform was implemented on 29 June 2020, the day after the second round of the 2020 Paris municipal election, with the four arrondissements now sharing a mayor and a district council. The four arrondissements continue to exist, but are no longer used as administrative and electoral sectors.[2][3]