Boulogne-Billancourt

Boulogne-Billancourt
Boulogne-Billancourt
Subprefecture and commune
	La Seine Musicale on Île Seguin in the Seine
	Coat of arms
	Paris and inner ring departments
	Location of Boulogne-Billancourt
	Boulogne-Billancourt Boulogne-Billancourt
	Coordinates: 48°50′07″N 2°14′27″E / 48.83520°N 02.2409°E
Country	France
Region	Île-de-France
Department	Hauts-de-Seine
Arrondissement	Boulogne-Billancourt
Canton	Boulogne-Billancourt-1 and 2
Intercommunality	Grand Paris
Government
• Mayor (2020–2026)	Pierre-Christophe Baguet (LR)
Area 1	6.17 km2 (2.38 sq mi)
Population (2021)	119,808
• Density	19,000/km2 (50,000/sq mi)
Time zone	UTC+01:00 (CET)
• Summer (DST)	UTC+02:00 (CEST)
INSEE/Postal code	92012 /92100
Elevation	28–40 m (92–131 ft)
	1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.

Boulogne-Billancourt (French pronunciation: [bulɔɲ bijɑ̃kuʁ] ^ⓘ; often colloquially called simply Boulogne, until 1924 Boulogne-sur-Seine, [bulɔɲ syʁ sɛn]) is a wealthy and prestigious commune in the western suburbs of Paris, France, located 8.2 km (5 mi) from the centre of Paris. It is a subprefecture of the Hauts-de-Seine department and thus the seat of the larger arrondissement of Boulogne-Billancourt. It is also part of the Métropole du Grand Paris. Boulogne-Billancourt includes one island in the Seine: Île Seguin.

Boulogne-Billancourt is one of the wealthiest regions in the Parisian area and in France.^[3] Formerly an important industrial site, it has successfully reconverted into business services and is now home to major communication companies headquartered in the Val de Seine business district.

^ "Répertoire national des élus: les maires" (in French). data.gouv.fr, Plateforme ouverte des données publiques françaises. 6 June 2023.
^ "Populations légales 2021". The National Institute of Statistics and Economic Studies. 28 December 2023.
^ "Salaire à Boulogne-Billancourt (92100, Hauts-de-Seine)" (in French). JDN. Retrieved 20 June 2016.

[1] "Répertoire national des élus: les maires" (in French). data.gouv.fr, Plateforme ouverte des données publiques françaises. 6 June 2023.

[popleg2021-2] "Populations légales 2021". The National Institute of Statistics and Economic Studies. 28 December 2023.

[3] "Salaire à Boulogne-Billancourt (92100, Hauts-de-Seine)" (in French). JDN. Retrieved 20 June 2016.

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