Boulogne-Billancourt

Boulogne-Billancourt
Subprefecture and commune
La Seine Musicale on Île Seguin in the Seine
Coat of arms
Location (in red) within Paris inner suburbs
Location of Boulogne-Billancourt
Boulogne-Billancourt
Boulogne-Billancourt
Coordinates: 48°50′07″N 2°14′27″E / 48.83520°N 02.2409°E / 48.83520; 02.2409
CountryFrance
RegionÎle-de-France
DepartmentHauts-de-Seine
ArrondissementBoulogne-Billancourt
CantonBoulogne-Billancourt-1 and 2
IntercommunalityGrand Paris
Government
 • Mayor (2020–2026) Pierre-Christophe Baguet[1] (LR)
Area
1
6.17 km2 (2.38 sq mi)
Population
 (2022)[2]
120,205
 • Density19,000/km2 (50,000/sq mi)
DemonymBoulonnais
Time zoneUTC+01:00 (CET)
 • Summer (DST)UTC+02:00 (CEST)
INSEE/Postal code
92012 /92100
Elevation28–40 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: [bulɔɲ bijɑ̃kuʁ] ⓘ; often colloquially simply Boulogne, until 1924 officially Boulogne-sur-Seine, [bulɔɲ syʁ sɛn], lit. 'Boulogne-on-Seine') is a wealthy and prestigious commune in the western inner suburbs of Paris, France, located 8.2 km (5 mi) from the centre of Paris at Notre Dame. 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.

  1. ^ "Répertoire national des élus: les maires" (in French). data.gouv.fr, Plateforme ouverte des données publiques françaises. 6 June 2023.
  2. ^ "Populations de référence 2022" (in French). The National Institute of Statistics and Economic Studies. 19 December 2024.
  3. ^ "Salaire à Boulogne-Billancourt (92100, Hauts-de-Seine)" (in French). JDN. Retrieved 20 June 2016.
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