Hauts-de-Seine

Hauts-de-Seine
Department of France
From top down, left to right: a view of Boulogne-Billancourt from the Parc de Saint-Cloud, Meudon site of the Paris Observatory, the Château de Sceaux, lake in Rueil-Malmaison, La Défense seen from La Garenne-Colombes
Flag Coat of arms
Location of Hauts-de-Seine in France
Coordinates: 48°50′N 02°12′E / 48.833°N 2.200°E / 48.833; 2.200
Country	France
Region	Île-de-France
Prefecture	Nanterre
Subprefectures	Antony Boulogne- Billancourt
Government
• President of the Departmental Council	Georges Siffredi[1] (LR)
Area 1
• Total	176 km2 (68 sq mi)
Population  (2021)[2]
• Total	1,635,291
• Rank	5th
• Density	9,300/km2 (24,000/sq mi)
Demonym	Altoséquanais.e
GDP [3]
• Total	€188.333 billion (2021)
• Per capita	€115,168 (2021)
Time zone	UTC+1 (CET)
• Summer (DST)	UTC+2 (CEST)
ISO 3166 code	FR-92
Department number	92
Arrondissements	3
Cantons	23
Communes	36
^1 French Land Register data, which exclude estuaries and lakes, ponds and glaciers larger than 1 km2

Hauts-de-Seine (French pronunciation: [o d(ə) sɛn] ^ⓘ; lit. 'Seine Heights') is a department in the Île-de-France region of France. It covers Paris's western inner suburbs. It is bordered by Paris, Seine-Saint-Denis and Val-de-Marne to the east, Val-d'Oise to the north, Yvelines to the west and Essonne to the south. With a population of 1,624,357 (as of 2019)^[4] and a total area of 176 square kilometres (68 square miles), it has the second highest population density among all departments of France, after Paris. It is the fifth most populous department in France. Its prefecture is Nanterre, but Boulogne-Billancourt, one of its two subprefectures, alongside Antony, has a larger population.

Hauts-de-Seine is best known for containing the modern office, cinema and shopping complex La Défense, one of Grand Paris's main economic centres and one of Europe's major business districts. Hauts-de-Seine is one of the wealthiest departments in France; it had the highest GDP per capita in France at €107,800 in 2020.^[5] Its inhabitants are called Altoséquanais (masculine) and Altoséquanaises (feminine) in French.