Essonne

Essonne
Department of France
Château de Courances
Flag Coat of arms
Location of Essonne in France
Coordinates: 48°30′N 02°17′E / 48.500°N 2.283°E / 48.500; 2.283
Country	France
Region	Île-de-France
Prefecture	Évry-Courcouronnes
Subprefectures	Étampes Palaiseau
Government
• President of the Departmental Council	François Durovray[1] (LR)
Area 1
• Total	1,804 km2 (697 sq mi)
Population  (2021)[2]
• Total	1,313,768
• Rank	14th
• Density	730/km2 (1,900/sq mi)
GDP [3]
• Total	€58.462 billion (2021)
• Per capita	€44,500 (2021)
Time zone	UTC+1 (CET)
• Summer (DST)	UTC+2 (CEST)
Department number	91
Arrondissements	3
Cantons	21
Communes	194
^1 French Land Register data, which exclude estuaries and lakes, ponds and glaciers larger than 1 km2

Essonne (French pronunciation: [ɛsɔn] ^ⓘ) is a department in the southern part of the Île-de-France region in Northern France. It is named after the river Essonne. In 2019, it had a population of 1,301,659, across 194 communes.^[4]

Essonne was formed on 1 January 1968, when Seine-et-Oise was split into smaller departments. Its prefecture is Évry-Courcouronnes. Its INSEE and postcode number is 91.